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* BUG: MAX_LOCKDEP_CHAINS too low!
@ 2018-09-28  5:51 syzbot
  2018-09-28  6:06 ` Dmitry Vyukov
  2019-10-20 23:33 ` syzbot
  0 siblings, 2 replies; 19+ messages in thread
From: syzbot @ 2018-09-28  5:51 UTC (permalink / raw)
  To: linux-kernel, syzkaller-bugs, tglx

Hello,

syzbot found the following crash on:

HEAD commit:    c307aaf3eb47 Merge tag 'iommu-fixes-v4.19-rc5' of git://gi..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13810df1400000
kernel config:  https://syzkaller.appspot.com/x/.config?x=dfb440e26f0a6f6f
dashboard link: https://syzkaller.appspot.com/bug?extid=aaa6fa4949cc5d9b7b25
compiler:       gcc (GCC) 8.0.1 20180413 (experimental)

Unfortunately, I don't have any reproducer for this crash yet.

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+aaa6fa4949cc5d9b7b25@syzkaller.appspotmail.com

BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 9480 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #256
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS  
Google 01/01/2011
Call Trace:
  __dump_stack lib/dump_stack.c:77 [inline]
  dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
  add_chain_cache kernel/locking/lockdep.c:2254 [inline]
  lookup_chain_cache_add kernel/locking/lockdep.c:2366 [inline]
  validate_chain kernel/locking/lockdep.c:2386 [inline]
  __lock_acquire.cold.61+0x337/0x482 kernel/locking/lockdep.c:3411
  lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900
  __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
  _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
  debug_object_activate+0x1d4/0x600 lib/debugobjects.c:473
  debug_hrtimer_activate kernel/time/hrtimer.c:416 [inline]
  debug_activate kernel/time/hrtimer.c:465 [inline]
  enqueue_hrtimer+0x97/0x560 kernel/time/hrtimer.c:954
  __hrtimer_start_range_ns kernel/time/hrtimer.c:1089 [inline]
  hrtimer_start_range_ns+0x640/0xe00 kernel/time/hrtimer.c:1115
  hrtimer_start include/linux/hrtimer.h:398 [inline]
  perf_swevent_start_hrtimer.part.74+0x19a/0x260 kernel/events/core.c:9145
  perf_swevent_start_hrtimer kernel/events/core.c:9133 [inline]
  cpu_clock_event_start+0x127/0x180 kernel/events/core.c:9203
  cpu_clock_event_add+0x4d/0x50 kernel/events/core.c:9215
  event_sched_in.isra.107+0x43c/0xe40 kernel/events/core.c:2279
  group_sched_in+0xe4/0x400 kernel/events/core.c:2315
  flexible_sched_in+0x792/0xc70 kernel/events/core.c:3309
  visit_groups_merge+0x380/0x6c0 kernel/events/core.c:3257
  ctx_flexible_sched_in kernel/events/core.c:3343 [inline]
  ctx_sched_in+0x392/0x790 kernel/events/core.c:3388
  perf_event_sched_in+0x6d/0xa0 kernel/events/core.c:2424
  perf_event_context_sched_in kernel/events/core.c:3428 [inline]
  __perf_event_task_sched_in+0x859/0xb60 kernel/events/core.c:3467
  perf_event_task_sched_in include/linux/perf_event.h:1095 [inline]
  finish_task_switch+0x366/0x900 kernel/sched/core.c:2673
  context_switch kernel/sched/core.c:2828 [inline]
  __schedule+0x874/0x1ed0 kernel/sched/core.c:3473
  preempt_schedule_irq+0x87/0x110 kernel/sched/core.c:3700
  retint_kernel+0x1b/0x2d
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788  
[inline]
RIP: 0010:qlink_free mm/kasan/quarantine.c:150 [inline]
RIP: 0010:qlist_free_all+0xf8/0x140 mm/kasan/quarantine.c:166
Code: 40 10 00 00 00 00 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b8  
8f c2 ff 48 83 3d 78 da af 07 00 74 46 48 8b 7d d0 57 9d <0f> 1f 44 00 00  
eb ae 48 89 df e8 09 1c 76 ff 48 b9 00 00 00 00 00
RSP: 0018:ffff88019362ebb8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8801ac0a6a10 RCX: 1ffff10036f289f9
RDX: 0000000000000000 RSI: ffff8801b7944fd0 RDI: 0000000000000286
RBP: ffff88019362ebf0 R08: ffff8801b7944fc8 R09: 0000000000000006
R10: 0000000000000000 R11: ffff8801b7944700 R12: 0000000000000000
R13: ffff8801da94c500 R14: ffff88018e1a5f50 R15: ffffffff89723ac0
  quarantine_reduce+0x163/0x1a0 mm/kasan/quarantine.c:259
  kasan_kmalloc+0x9b/0xe0 mm/kasan/kasan.c:538
  kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490
  slab_post_alloc_hook mm/slab.h:444 [inline]
  slab_alloc mm/slab.c:3392 [inline]
  __do_kmalloc mm/slab.c:3716 [inline]
  __kmalloc_track_caller+0x133/0x750 mm/slab.c:3733
  kstrdup+0x39/0x70 mm/util.c:56
  kstrdup_const+0x66/0x80 mm/util.c:77
  __kernfs_new_node+0xe8/0x8d0 fs/kernfs/dir.c:630
  kernfs_new_node+0x95/0x120 fs/kernfs/dir.c:695
  kernfs_create_link+0xdb/0x250 fs/kernfs/symlink.c:40
  sysfs_do_create_link_sd.isra.2+0x90/0x130 fs/sysfs/symlink.c:43
  sysfs_do_create_link fs/sysfs/symlink.c:79 [inline]
  sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91
  driver_sysfs_add+0x109/0x350 drivers/base/dd.c:370
  device_bind_driver+0x19/0xd0 drivers/base/dd.c:424
  mac80211_hwsim_new_radio+0x48b/0x3570  
drivers/net/wireless/mac80211_hwsim.c:2688
  hwsim_new_radio_nl+0x7dc/0xb20 drivers/net/wireless/mac80211_hwsim.c:3376
  genl_family_rcv_msg+0x8a9/0x1140 net/netlink/genetlink.c:601
  genl_rcv_msg+0xc6/0x168 net/netlink/genetlink.c:626
  netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454
  genl_rcv+0x28/0x40 net/netlink/genetlink.c:637
  netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
  netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1343
  netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908
  sock_sendmsg_nosec net/socket.c:621 [inline]
  sock_sendmsg+0xd5/0x120 net/socket.c:631
  ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116
  __sys_sendmsg+0x11d/0x280 net/socket.c:2154
  __do_sys_sendmsg net/socket.c:2163 [inline]
  __se_sys_sendmsg net/socket.c:2161 [inline]
  __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161
  do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
  entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457579
Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7  
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff  
ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f6a204f7c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000004
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6a204f86d4
R13: 00000000004c3891 R14: 00000000004d56d0 R15: 00000000ffffffff
kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path  
= '/devices/virtual/block/loop3'
kobject: 'loop2' (000000007177bce6): kobject_uevent_env
kobject: 'loop2' (000000007177bce6): fill_kobj_path: path  
= '/devices/virtual/block/loop2'
kobject: 'loop5' (0000000033af2aa2): kobject_uevent_env
kobject: 'loop5' (0000000033af2aa2): fill_kobj_path: path  
= '/devices/virtual/block/loop5'
kobject: 'loop0' (000000001b064100): kobject_uevent_env
kobject: 'loop0' (000000001b064100): fill_kobj_path: path  
= '/devices/virtual/block/loop0'
kobject: 'rx-0' (00000000b5f3f776): kobject_cleanup, parent 0000000027ec32cd
kobject: 'hwsim77' (000000006f94a6e0): kobject_uevent_env
kobject: 'rx-0' (00000000b5f3f776): auto cleanup 'remove' event
kobject: 'hwsim77' (000000006f94a6e0): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim77'
kobject: 'loop5' (0000000033af2aa2): kobject_uevent_env
kobject: 'rx-0' (00000000b5f3f776): kobject_uevent_env
kobject: 'loop5' (0000000033af2aa2): fill_kobj_path: path  
= '/devices/virtual/block/loop5'
kobject: 'rx-0' (00000000b5f3f776): fill_kobj_path: path  
= '/devices/virtual/net/syz_tun/queues/rx-0'
kobject: 'rx-0' (00000000b5f3f776): auto cleanup kobject_del
kobject: 'rx-0' (00000000b5f3f776): calling ktype release
kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path  
= '/devices/virtual/block/loop3'
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000ac11dd12): kobject_cleanup, parent 0000000027ec32cd
kobject: 'tx-0' (00000000ac11dd12): auto cleanup 'remove' event
kobject: 'tx-0' (00000000ac11dd12): kobject_uevent_env
kobject: 'tx-0' (00000000ac11dd12): fill_kobj_path: path  
= '/devices/virtual/net/syz_tun/queues/tx-0'
kobject: 'loop0' (000000001b064100): kobject_uevent_env
kobject: 'tx-0' (00000000ac11dd12): auto cleanup kobject_del
kobject: 'tx-0' (00000000ac11dd12): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (0000000027ec32cd): kobject_cleanup, parent            
(null)
kobject: 'queues' (0000000027ec32cd): calling ktype release
kobject: 'queues' (0000000027ec32cd): kset_release
kobject: 'queues': free name
kobject: 'syz_tun' (000000007668427e): kobject_uevent_env
kobject: 'syz_tun' (000000007668427e): fill_kobj_path: path  
= '/devices/virtual/net/syz_tun'
kobject: 'loop0' (000000001b064100): fill_kobj_path: path  
= '/devices/virtual/block/loop0'
kobject: 'ieee80211' (00000000abea8d1d): kobject_add_internal:  
parent: 'hwsim77', set: '(null)'
kobject: 'phy77' (00000000f56381dc): kobject_add_internal:  
parent: 'ieee80211', set: 'devices'
kobject: 'phy77' (00000000f56381dc): kobject_uevent_env
kobject: 'phy77' (00000000f56381dc): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim77/ieee80211/phy77'
kobject: 'rfkill96' (000000002d5dfeef): kobject_add_internal:  
parent: 'phy77', set: 'devices'
kobject: 'rfkill96' (000000002d5dfeef): kobject_uevent_env
kobject: 'rfkill96' (000000002d5dfeef): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim77/ieee80211/phy77/rfkill96'
kobject: 'rx-0' (00000000c2635233): kobject_cleanup, parent 0000000095e05fe0
kobject: 'rx-0' (00000000c2635233): auto cleanup 'remove' event
kobject: 'rx-0' (00000000c2635233): kobject_uevent_env
kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
kobject: 'rx-0' (00000000c2635233): fill_kobj_path: path  
= '/devices/virtual/net/syz_tun/queues/rx-0'
kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path  
= '/devices/virtual/block/loop3'
kobject: 'rx-0' (00000000c2635233): auto cleanup kobject_del
kobject: 'rx-0' (00000000c2635233): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000f7614753): kobject_cleanup, parent 0000000095e05fe0
kobject: 'tx-0' (00000000f7614753): auto cleanup 'remove' event
kobject: 'tx-0' (00000000f7614753): kobject_uevent_env
kobject: 'tx-0' (00000000f7614753): fill_kobj_path: path  
= '/devices/virtual/net/syz_tun/queues/tx-0'
kobject: 'tx-0' (00000000f7614753): auto cleanup kobject_del
kobject: 'tx-0' (00000000f7614753): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (0000000095e05fe0): kobject_cleanup, parent            
(null)
kobject: 'queues' (0000000095e05fe0): calling ktype release
kobject: 'queues' (0000000095e05fe0): kset_release
kobject: 'queues': free name
kobject: 'syz_tun' (00000000eb4cc7f0): kobject_uevent_env
kobject: 'syz_tun' (00000000eb4cc7f0): fill_kobj_path: path  
= '/devices/virtual/net/syz_tun'
kobject: 'syz_tun' (000000007668427e): kobject_cleanup, parent            
(null)
kobject: 'syz_tun' (000000007668427e): calling ktype release
kobject: 'syz_tun': free name
kobject: 'rx-0' (0000000061d1b261): kobject_cleanup, parent 00000000f88fdb0a
kobject: 'rx-0' (0000000061d1b261): auto cleanup 'remove' event
kobject: 'rx-0' (0000000061d1b261): kobject_uevent_env
kobject: 'loop0' (000000001b064100): kobject_uevent_env
kobject: 'rx-0' (0000000061d1b261): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'loop0' (000000001b064100): fill_kobj_path: path  
= '/devices/virtual/block/loop0'
kobject: 'rx-0' (0000000061d1b261): auto cleanup kobject_del
kobject: 'rx-0' (0000000061d1b261): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000544c7408): kobject_cleanup, parent 00000000f88fdb0a
kobject: 'tx-0' (00000000544c7408): auto cleanup 'remove' event
kobject: 'tx-0' (00000000544c7408): kobject_uevent_env
kobject: 'tx-0' (00000000544c7408): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (00000000544c7408): auto cleanup kobject_del
kobject: 'tx-0' (00000000544c7408): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000f88fdb0a): kobject_cleanup, parent            
(null)
kobject: 'queues' (00000000f88fdb0a): calling ktype release
kobject: 'queues' (00000000f88fdb0a): kset_release
kobject: 'queues': free name
kobject: 'ip6gre0' (00000000f6cb3a1b): kobject_uevent_env
kobject: 'ip6gre0' (00000000f6cb3a1b): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (00000000c5992233): kobject_cleanup, parent 00000000a931fc66
kobject: 'rx-0' (00000000c5992233): auto cleanup 'remove' event
kobject: 'rx-0' (00000000c5992233): kobject_uevent_env
kobject: 'rx-0' (00000000c5992233): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (00000000c5992233): auto cleanup kobject_del
kobject: 'rx-0' (00000000c5992233): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (000000001492ee3e): kobject_cleanup, parent 00000000a931fc66
kobject: 'tx-0' (000000001492ee3e): auto cleanup 'remove' event
kobject: 'tx-0' (000000001492ee3e): kobject_uevent_env
kobject: 'tx-0' (000000001492ee3e): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (000000001492ee3e): auto cleanup kobject_del
kobject: 'tx-0' (000000001492ee3e): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000a931fc66): kobject_cleanup, parent            
(null)
kobject: 'queues' (00000000a931fc66): calling ktype release
kobject: 'queues' (00000000a931fc66): kset_release
kobject: 'queues': free name
kobject: 'ip6gretap0' (0000000072f65534): kobject_uevent_env
kobject: 'ip6gretap0' (0000000072f65534): kobject_uevent_env:  
uevent_suppress caused the event to drop!
kobject: 'rfkill96' (000000002d5dfeef): kobject_uevent_env
ieee80211 phy77: Selected rate control algorithm 'minstrel_ht'
kobject: 'rfkill96' (000000002d5dfeef): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim77/ieee80211/phy77/rfkill96'
kobject: 'net' (0000000039f969e1): kobject_add_internal: parent: 'hwsim77',  
set: '(null)'
kobject: 'wlan8' (0000000068e8141f): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'wlan8' (0000000068e8141f): kobject_uevent_env
kobject: 'wlan8' (0000000068e8141f): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim77/net/wlan8'
kobject: 'queues' (000000006901efd4): kobject_add_internal:  
parent: 'wlan8', set: '<NULL>'
kobject: 'queues' (000000006901efd4): kobject_uevent_env
kobject: 'queues' (000000006901efd4): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (000000009e31e178): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (000000009e31e178): kobject_uevent_env
kobject: 'rx-0' (000000009e31e178): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim77/net/wlan8/queues/rx-0'
kobject: 'tx-0' (0000000098527b68): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (0000000098527b68): kobject_uevent_env
kobject: 'tx-0' (0000000098527b68): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim77/net/wlan8/queues/tx-0'
kobject: 'tx-1' (00000000b5a91c3f): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-1' (00000000b5a91c3f): kobject_uevent_env
kobject: 'tx-1' (00000000b5a91c3f): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim77/net/wlan8/queues/tx-1'
kobject: 'tx-2' (00000000f19487ce): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-2' (00000000f19487ce): kobject_uevent_env
kobject: 'tx-2' (00000000f19487ce): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim77/net/wlan8/queues/tx-2'
kobject: 'tx-3' (0000000064ef4ef0): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-3' (0000000064ef4ef0): kobject_uevent_env
kobject: 'tx-3' (0000000064ef4ef0): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim77/net/wlan8/queues/tx-3'
kobject: 'syz_tun' (00000000eb4cc7f0): kobject_cleanup, parent            
(null)
kobject: 'syz_tun' (00000000eb4cc7f0): calling ktype release
kobject: 'syz_tun': free name
kobject: 'loop1' (00000000261da70b): kobject_uevent_env
kobject: 'loop1' (00000000261da70b): fill_kobj_path: path  
= '/devices/virtual/block/loop1'
kobject: 'ip6gre0' (00000000f6cb3a1b): kobject_cleanup, parent            
(null)
kobject: 'loop4' (000000001e9bb253): kobject_uevent_env
kobject: 'ip6gre0' (00000000f6cb3a1b): auto cleanup 'remove' event
kobject: 'hwsim78' (00000000ed32663c): kobject_add_internal:  
parent: 'mac80211_hwsim', set: 'devices'
kobject: 'loop4' (000000001e9bb253): fill_kobj_path: path  
= '/devices/virtual/block/loop4'
kobject: 'ip6gre0' (00000000f6cb3a1b): kobject_uevent_env
kobject: 'loop0' (000000001b064100): kobject_uevent_env
kobject: 'loop0' (000000001b064100): fill_kobj_path: path  
= '/devices/virtual/block/loop0'
kobject: 'ip6gre0' (00000000f6cb3a1b): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'hwsim78' (00000000ed32663c): kobject_uevent_env
kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path  
= '/devices/virtual/block/loop3'
kobject: 'ip6gre0' (00000000f6cb3a1b): calling ktype release
kobject: 'hwsim78' (00000000ed32663c): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim78'
kobject: 'ip6gre0': free name
kobject: 'loop0' (000000001b064100): kobject_uevent_env
kobject: 'loop0' (000000001b064100): fill_kobj_path: path  
= '/devices/virtual/block/loop0'
IPVS: ftp: loaded support on port[0] = 21
kobject: 'hwsim78' (00000000ed32663c): kobject_uevent_env
kobject: 'ip6gretap0' (0000000072f65534): kobject_cleanup, parent            
(null)
kobject: 'ip6gretap0' (0000000072f65534): auto cleanup 'remove' event
kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
kobject: 'lo' (0000000026ed1e89): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'ip6gretap0' (0000000072f65534): kobject_uevent_env
kobject: 'hwsim78' (00000000ed32663c): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim78'
kobject: 'lo' (0000000026ed1e89): kobject_uevent_env
kobject: 'ip6gretap0' (0000000072f65534): kobject_uevent_env:  
uevent_suppress caused the event to drop!
kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path  
= '/devices/virtual/block/loop3'
kobject: 'lo' (0000000026ed1e89): fill_kobj_path: path  
= '/devices/virtual/net/lo'
kobject: 'ip6gretap0' (0000000072f65534): calling ktype release
kobject: 'loop0' (000000001b064100): kobject_uevent_env
kobject: 'ip6gretap0': free name
kobject: 'queues' (000000009fc73604): kobject_add_internal: parent: 'lo',  
set: '<NULL>'
kobject: 'loop0' (000000001b064100): fill_kobj_path: path  
= '/devices/virtual/block/loop0'
kobject: 'queues' (000000009fc73604): kobject_uevent_env
IPVS: ftp: loaded support on port[0] = 21
kobject: 'queues' (000000009fc73604): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (00000000435d09f3): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (00000000435d09f3): kobject_uevent_env
kobject: 'rx-0' (00000000435d09f3): fill_kobj_path: path  
= '/devices/virtual/net/lo/queues/rx-0'
kobject: 'tx-0' (0000000098392069): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (0000000098392069): kobject_uevent_env
kobject: 'tx-0' (0000000098392069): fill_kobj_path: path  
= '/devices/virtual/net/lo/queues/tx-0'
kobject: 'tunl0' (000000001e342edc): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'tunl0' (000000001e342edc): kobject_uevent_env
kobject: 'tunl0' (000000001e342edc): fill_kobj_path: path  
= '/devices/virtual/net/tunl0'
kobject: 'queues' (000000005361d6aa): kobject_add_internal:  
parent: 'tunl0', set: '<NULL>'
kobject: 'queues' (000000005361d6aa): kobject_uevent_env
kobject: 'queues' (000000005361d6aa): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (00000000f46bc135): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (00000000f46bc135): kobject_uevent_env
kobject: 'rx-0' (00000000f46bc135): fill_kobj_path: path  
= '/devices/virtual/net/tunl0/queues/rx-0'
kobject: 'tx-0' (00000000f09f92cb): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (00000000f09f92cb): kobject_uevent_env
kobject: 'tx-0' (00000000f09f92cb): fill_kobj_path: path  
= '/devices/virtual/net/tunl0/queues/tx-0'
kobject: 'gre0' (00000000e089a5b3): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'gre0' (00000000e089a5b3): kobject_uevent_env
kobject: 'gre0' (00000000e089a5b3): fill_kobj_path: path  
= '/devices/virtual/net/gre0'
kobject: 'queues' (0000000090d6237c): kobject_add_internal: parent: 'gre0',  
set: '<NULL>'
kobject: 'queues' (0000000090d6237c): kobject_uevent_env
kobject: 'queues' (0000000090d6237c): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (000000008dc59821): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (000000008dc59821): kobject_uevent_env
kobject: 'rx-0' (000000008dc59821): fill_kobj_path: path  
= '/devices/virtual/net/gre0/queues/rx-0'
kobject: 'tx-0' (00000000b063970c): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (00000000b063970c): kobject_uevent_env
kobject: 'tx-0' (00000000b063970c): fill_kobj_path: path  
= '/devices/virtual/net/gre0/queues/tx-0'
kobject: 'gretap0' (00000000d45f51ef): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'gretap0' (00000000d45f51ef): kobject_uevent_env
kobject: 'gretap0' (00000000d45f51ef): fill_kobj_path: path  
= '/devices/virtual/net/gretap0'
kobject: 'queues' (000000004e0689ff): kobject_add_internal:  
parent: 'gretap0', set: '<NULL>'
kobject: 'queues' (000000004e0689ff): kobject_uevent_env
kobject: 'queues' (000000004e0689ff): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (0000000057f00024): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (0000000057f00024): kobject_uevent_env
kobject: 'rx-0' (0000000057f00024): fill_kobj_path: path  
= '/devices/virtual/net/gretap0/queues/rx-0'
kobject: 'tx-0' (0000000084733bae): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (0000000084733bae): kobject_uevent_env
kobject: 'tx-0' (0000000084733bae): fill_kobj_path: path  
= '/devices/virtual/net/gretap0/queues/tx-0'
kobject: 'erspan0' (00000000629238cb): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'erspan0' (00000000629238cb): kobject_uevent_env
kobject: 'erspan0' (00000000629238cb): fill_kobj_path: path  
= '/devices/virtual/net/erspan0'
kobject: 'queues' (00000000a7870bef): kobject_add_internal:  
parent: 'erspan0', set: '<NULL>'
kobject: 'queues' (00000000a7870bef): kobject_uevent_env
kobject: 'queues' (00000000a7870bef): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (000000008ccdd182): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (000000008ccdd182): kobject_uevent_env
kobject: 'rx-0' (000000008ccdd182): fill_kobj_path: path  
= '/devices/virtual/net/erspan0/queues/rx-0'
kobject: 'tx-0' (00000000ca475f8c): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (00000000ca475f8c): kobject_uevent_env
kobject: 'tx-0' (00000000ca475f8c): fill_kobj_path: path  
= '/devices/virtual/net/erspan0/queues/tx-0'
kobject: 'ieee80211' (0000000034003b2d): kobject_add_internal:  
parent: 'hwsim78', set: '(null)'
kobject: 'phy78' (00000000b6656112): kobject_add_internal:  
parent: 'ieee80211', set: 'devices'
kobject: 'phy78' (00000000b6656112): kobject_uevent_env
kobject: 'phy78' (00000000b6656112): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim78/ieee80211/phy78'
kobject: 'rfkill97' (00000000f97c6bd6): kobject_add_internal:  
parent: 'phy78', set: 'devices'
kobject: 'rfkill97' (00000000f97c6bd6): kobject_uevent_env
kobject: 'rfkill97' (00000000f97c6bd6): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim78/ieee80211/phy78/rfkill97'
kobject: 'rx-0' (000000007daa8947): kobject_cleanup, parent 0000000091940c5f
kobject: 'rx-0' (000000007daa8947): auto cleanup 'remove' event
kobject: 'rx-0' (000000007daa8947): kobject_uevent_env
kobject: 'rx-0' (000000007daa8947): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (000000007daa8947): auto cleanup kobject_del
kobject: 'rx-0' (000000007daa8947): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000861a74db): kobject_cleanup, parent 0000000091940c5f
kobject: 'tx-0' (00000000861a74db): auto cleanup 'remove' event
kobject: 'tx-0' (00000000861a74db): kobject_uevent_env
kobject: 'tx-0' (00000000861a74db): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (00000000861a74db): auto cleanup kobject_del
kobject: 'tx-0' (00000000861a74db): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (0000000091940c5f): kobject_cleanup, parent            
(null)
kobject: 'queues' (0000000091940c5f): calling ktype release
kobject: 'queues' (0000000091940c5f): kset_release
kobject: 'queues': free name
kobject: 'ip6tnl0' (000000005239a013): kobject_uevent_env
kobject: 'ip6tnl0' (000000005239a013): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'lo' (0000000011a2116b): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'lo' (0000000011a2116b): kobject_uevent_env
kobject: 'lo' (0000000011a2116b): fill_kobj_path: path  
= '/devices/virtual/net/lo'
kobject: 'queues' (00000000fdf6ce56): kobject_add_internal: parent: 'lo',  
set: '<NULL>'
kobject: 'queues' (00000000fdf6ce56): kobject_uevent_env
kobject: 'queues' (00000000fdf6ce56): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (00000000f8b6c016): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (00000000f8b6c016): kobject_uevent_env
kobject: 'rx-0' (00000000f8b6c016): fill_kobj_path: path  
= '/devices/virtual/net/lo/queues/rx-0'
kobject: 'tx-0' (000000007324da58): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (000000007324da58): kobject_uevent_env
kobject: 'tx-0' (000000007324da58): fill_kobj_path: path  
= '/devices/virtual/net/lo/queues/tx-0'
kobject: 'ip_vti0' (0000000044d40d2e): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'ip_vti0' (0000000044d40d2e): kobject_uevent_env
kobject: 'ip_vti0' (0000000044d40d2e): fill_kobj_path: path  
= '/devices/virtual/net/ip_vti0'
kobject: 'queues' (00000000d3e39d5a): kobject_add_internal:  
parent: 'ip_vti0', set: '<NULL>'
kobject: 'queues' (00000000d3e39d5a): kobject_uevent_env
kobject: 'queues' (00000000d3e39d5a): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (0000000023c378b6): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (0000000023c378b6): kobject_uevent_env
kobject: 'rx-0' (0000000023c378b6): fill_kobj_path: path  
= '/devices/virtual/net/ip_vti0/queues/rx-0'
kobject: 'tx-0' (00000000f4b30b04): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (00000000f4b30b04): kobject_uevent_env
kobject: 'tx-0' (00000000f4b30b04): fill_kobj_path: path  
= '/devices/virtual/net/ip_vti0/queues/tx-0'
kobject: 'rfkill97' (00000000f97c6bd6): kobject_uevent_env
ieee80211 phy78: Selected rate control algorithm 'minstrel_ht'
kobject: 'rfkill97' (00000000f97c6bd6): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim78/ieee80211/phy78/rfkill97'
kobject: 'net' (00000000fd3fcd8d): kobject_add_internal: parent: 'hwsim78',  
set: '(null)'
kobject: 'wlan9' (00000000929337df): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'wlan9' (00000000929337df): kobject_uevent_env
kobject: 'wlan9' (00000000929337df): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim78/net/wlan9'
kobject: 'queues' (0000000063cd3400): kobject_add_internal:  
parent: 'wlan9', set: '<NULL>'
kobject: 'queues' (0000000063cd3400): kobject_uevent_env
kobject: 'queues' (0000000063cd3400): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (00000000ef1fcb8f): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (00000000ef1fcb8f): kobject_uevent_env
kobject: 'rx-0' (00000000ef1fcb8f): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim78/net/wlan9/queues/rx-0'
kobject: 'tx-0' (000000007abf9854): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (000000007abf9854): kobject_uevent_env
kobject: 'tx-0' (000000007abf9854): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim78/net/wlan9/queues/tx-0'
kobject: 'tx-1' (000000006726ac4e): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-1' (000000006726ac4e): kobject_uevent_env
kobject: 'tx-1' (000000006726ac4e): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim78/net/wlan9/queues/tx-1'
kobject: 'tx-2' (000000002b70d9f7): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-2' (000000002b70d9f7): kobject_uevent_env
kobject: 'tx-2' (000000002b70d9f7): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim78/net/wlan9/queues/tx-2'
kobject: 'tx-3' (000000005fa9262f): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-3' (000000005fa9262f): kobject_uevent_env
kobject: 'tx-3' (000000005fa9262f): fill_kobj_path: path  
= '/devices/virtual/mac80211_hwsim/hwsim78/net/wlan9/queues/tx-3'
kobject: 'ip6tnl0' (000000005239a013): kobject_cleanup, parent            
(null)
kobject: 'tunl0' (00000000008014d3): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'ip6tnl0' (000000005239a013): auto cleanup 'remove' event
kobject: 'ip6tnl0' (000000005239a013): kobject_uevent_env
kobject: 'ip6tnl0' (000000005239a013): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'ip6tnl0' (000000005239a013): calling ktype release
kobject: 'ip6tnl0': free name
kobject: 'loop1' (00000000261da70b): kobject_uevent_env
kobject: 'loop1' (00000000261da70b): fill_kobj_path: path  
= '/devices/virtual/block/loop1'
kobject: 'loop0' (000000001b064100): kobject_uevent_env
kobject: 'tunl0' (00000000008014d3): kobject_uevent_env
kobject: 'loop4' (000000001e9bb253): kobject_uevent_env
kobject: 'loop0' (000000001b064100): fill_kobj_path: path  
= '/devices/virtual/block/loop0'
kobject: 'tunl0' (00000000008014d3): fill_kobj_path: path  
= '/devices/virtual/net/tunl0'
kobject: 'loop4' (000000001e9bb253): fill_kobj_path: path  
= '/devices/virtual/block/loop4'
f2fs_msg: 6 callbacks suppressed
F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
kobject: 'queues' (0000000085ad9b5f): kobject_add_internal:  
parent: 'tunl0', set: '<NULL>'
F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
attempt to access beyond end of device
loop0: rw=12288, want=8200, limit=20
attempt to access beyond end of device
loop0: rw=12288, want=12296, limit=20
kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path  
= '/devices/virtual/block/loop3'
F2FS-fs (loop0): Failed to get valid F2FS checkpoint
F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
kobject: 'queues' (0000000085ad9b5f): kobject_uevent_env
attempt to access beyond end of device
loop0: rw=12288, want=8200, limit=20
attempt to access beyond end of device
loop0: rw=12288, want=12296, limit=20
kobject: 'queues' (0000000085ad9b5f): kobject_uevent_env: filter function  
caused the event to drop!
F2FS-fs (loop0): Failed to get valid F2FS checkpoint
kobject: 'rx-0' (000000001fb7db9b): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (000000001fb7db9b): kobject_uevent_env
kobject: 'rx-0' (000000001fb7db9b): fill_kobj_path: path  
= '/devices/virtual/net/tunl0/queues/rx-0'
kobject: 'tx-0' (000000004dbf1fa8): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (000000004dbf1fa8): kobject_uevent_env
kobject: 'tx-0' (000000004dbf1fa8): fill_kobj_path: path  
= '/devices/virtual/net/tunl0/queues/tx-0'
kobject: 'gre0' (000000001ff413c5): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'gre0' (000000001ff413c5): kobject_uevent_env
kobject: 'gre0' (000000001ff413c5): fill_kobj_path: path  
= '/devices/virtual/net/gre0'
kobject: 'queues' (000000008553a1e7): kobject_add_internal: parent: 'gre0',  
set: '<NULL>'
kobject: 'loop0' (000000001b064100): kobject_uevent_env
kobject: 'queues' (000000008553a1e7): kobject_uevent_env
kobject: 'queues' (000000008553a1e7): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (000000002ec2b04e): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (000000002ec2b04e): kobject_uevent_env
kobject: 'loop0' (000000001b064100): fill_kobj_path: path  
= '/devices/virtual/block/loop0'
kobject: 'rx-0' (000000002ec2b04e): fill_kobj_path: path  
= '/devices/virtual/net/gre0/queues/rx-0'
kobject: 'tx-0' (0000000078e14477): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (0000000078e14477): kobject_uevent_env
kobject: 'tx-0' (0000000078e14477): fill_kobj_path: path  
= '/devices/virtual/net/gre0/queues/tx-0'
kobject: 'loop0' (000000001b064100): kobject_uevent_env
kobject: 'ip6_vti0' (000000008e2c8c23): kobject_add_internal:  
parent: 'net', set: 'devices'
kobject: 'loop0' (000000001b064100): fill_kobj_path: path  
= '/devices/virtual/block/loop0'
F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
kobject: 'ip6_vti0' (000000008e2c8c23): kobject_uevent_env
F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
kobject: 'ip6_vti0' (000000008e2c8c23): fill_kobj_path: path  
= '/devices/virtual/net/ip6_vti0'
attempt to access beyond end of device
kobject: 'queues' (00000000eaea788f): kobject_add_internal:  
parent: 'ip6_vti0', set: '<NULL>'
loop0: rw=12288, want=8200, limit=20
attempt to access beyond end of device
kobject: 'queues' (00000000eaea788f): kobject_uevent_env
loop0: rw=12288, want=12296, limit=20
kobject: 'queues' (00000000eaea788f): kobject_uevent_env: filter function  
caused the event to drop!
F2FS-fs (loop0): Failed to get valid F2FS checkpoint
F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
kobject: 'rx-0' (0000000041c09ad6): kobject_add_internal: parent: 'queues',  
set: 'queues'
attempt to access beyond end of device
kobject: 'rx-0' (0000000041c09ad6): kobject_uevent_env
loop0: rw=12288, want=8200, limit=20
kobject: 'rx-0' (0000000041c09ad6): fill_kobj_path: path  
= '/devices/virtual/net/ip6_vti0/queues/rx-0'
attempt to access beyond end of device
loop0: rw=12288, want=12296, limit=20
kobject: 'tx-0' (00000000188d926f): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (00000000188d926f): kobject_uevent_env
kobject: 'tx-0' (00000000188d926f): fill_kobj_path: path  
= '/devices/virtual/net/ip6_vti0/queues/tx-0'
kobject: 'rx-0' (00000000198dbba6): kobject_cleanup, parent 00000000f5491f13
kobject: 'rx-0' (00000000198dbba6): auto cleanup 'remove' event
kobject: 'rx-0' (00000000198dbba6): kobject_uevent_env
kobject: 'rx-0' (00000000198dbba6): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (00000000198dbba6): auto cleanup kobject_del
kobject: 'loop0' (000000001b064100): kobject_uevent_env
kobject: 'rx-0' (00000000198dbba6): calling ktype release
kobject: 'loop0' (000000001b064100): fill_kobj_path: path  
= '/devices/virtual/block/loop0'
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000b008619e): kobject_cleanup, parent 00000000f5491f13
kobject: 'tx-0' (00000000b008619e): auto cleanup 'remove' event
kobject: 'tx-0' (00000000b008619e): kobject_uevent_env
kobject: 'tx-0' (00000000b008619e): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (00000000b008619e): auto cleanup kobject_del
kobject: 'tx-0' (00000000b008619e): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000f5491f13): kobject_cleanup, parent            
(null)
kobject: 'queues' (00000000f5491f13): calling ktype release
kobject: 'queues' (00000000f5491f13): kset_release
kobject: 'queues': free name
kobject: 'sit0' (00000000c7a47a9c): kobject_uevent_env
kobject: 'sit0' (00000000c7a47a9c): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'gretap0' (00000000e84b27d6): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path  
= '/devices/virtual/block/loop3'
kobject: 'gretap0' (00000000e84b27d6): kobject_uevent_env
kobject: 'gretap0' (00000000e84b27d6): fill_kobj_path: path  
= '/devices/virtual/net/gretap0'
kobject: 'queues' (0000000044843888): kobject_add_internal:  
parent: 'gretap0', set: '<NULL>'
kobject: 'loop1' (00000000261da70b): kobject_uevent_env
kobject: 'queues' (0000000044843888): kobject_uevent_env
kobject: 'loop1' (00000000261da70b): fill_kobj_path: path  
= '/devices/virtual/block/loop1'
kobject: 'queues' (0000000044843888): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (00000000a6a8e870): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (00000000a6a8e870): kobject_uevent_env
kobject: 'rx-0' (00000000a6a8e870): fill_kobj_path: path  
= '/devices/virtual/net/gretap0/queues/rx-0'
kobject: 'tx-0' (000000000f82eab0): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (000000000f82eab0): kobject_uevent_env
kobject: 'tx-0' (000000000f82eab0): fill_kobj_path: path  
= '/devices/virtual/net/gretap0/queues/tx-0'
kobject: 'erspan0' (0000000090b660a5): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'erspan0' (0000000090b660a5): kobject_uevent_env
kobject: 'erspan0' (0000000090b660a5): fill_kobj_path: path  
= '/devices/virtual/net/erspan0'
kobject: 'queues' (0000000020ef6b7a): kobject_add_internal:  
parent: 'erspan0', set: '<NULL>'
kobject: 'queues' (0000000020ef6b7a): kobject_uevent_env
kobject: 'queues' (0000000020ef6b7a): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (0000000076034137): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (0000000076034137): kobject_uevent_env
kobject: 'rx-0' (0000000076034137): fill_kobj_path: path  
= '/devices/virtual/net/erspan0/queues/rx-0'
kobject: 'tx-0' (00000000a2877c40): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (00000000a2877c40): kobject_uevent_env
kobject: 'tx-0' (00000000a2877c40): fill_kobj_path: path  
= '/devices/virtual/net/erspan0/queues/tx-0'
kobject: 'sit0' (00000000e3e2a16f): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'sit0' (00000000e3e2a16f): kobject_uevent_env
kobject: 'sit0' (00000000e3e2a16f): fill_kobj_path: path  
= '/devices/virtual/net/sit0'
kobject: 'queues' (00000000c87a748d): kobject_add_internal: parent: 'sit0',  
set: '<NULL>'
kobject: 'queues' (00000000c87a748d): kobject_uevent_env
kobject: 'queues' (00000000c87a748d): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (0000000013220ea2): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (0000000013220ea2): kobject_uevent_env
kobject: 'rx-0' (0000000013220ea2): fill_kobj_path: path  
= '/devices/virtual/net/sit0/queues/rx-0'
kobject: 'tx-0' (000000000f597677): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (000000000f597677): kobject_uevent_env
kobject: 'tx-0' (000000000f597677): fill_kobj_path: path  
= '/devices/virtual/net/sit0/queues/tx-0'
kobject: 'sit0' (00000000c7a47a9c): kobject_cleanup, parent           (null)
kobject: 'ip6tnl0' (00000000ef426155): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'ip6tnl0' (00000000ef426155): kobject_uevent_env
kobject: 'sit0' (00000000c7a47a9c): auto cleanup 'remove' event
kobject: 'ip6tnl0' (00000000ef426155): fill_kobj_path: path  
= '/devices/virtual/net/ip6tnl0'
kobject: 'sit0' (00000000c7a47a9c): kobject_uevent_env
kobject: 'queues' (0000000014824614): kobject_add_internal:  
parent: 'ip6tnl0', set: '<NULL>'
kobject: 'queues' (0000000014824614): kobject_uevent_env
kobject: 'sit0' (00000000c7a47a9c): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'queues' (0000000014824614): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'sit0' (00000000c7a47a9c): calling ktype release
kobject: 'rx-0' (0000000087b89223): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'sit0': free name
kobject: 'rx-0' (0000000087b89223): kobject_uevent_env
kobject: 'rx-0' (0000000087b89223): fill_kobj_path: path  
= '/devices/virtual/net/ip6tnl0/queues/rx-0'
kobject: 'tx-0' (000000000bb0a388): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (000000000bb0a388): kobject_uevent_env
kobject: 'tx-0' (000000000bb0a388): fill_kobj_path: path  
= '/devices/virtual/net/ip6tnl0/queues/tx-0'
kobject: 'ip6gre0' (000000006fc72841): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'ip6gre0' (000000006fc72841): kobject_uevent_env
kobject: 'ip6gre0' (000000006fc72841): fill_kobj_path: path  
= '/devices/virtual/net/ip6gre0'
kobject: 'queues' (0000000019e0690c): kobject_add_internal:  
parent: 'ip6gre0', set: '<NULL>'
kobject: 'loop4' (000000001e9bb253): kobject_uevent_env
kobject: 'loop4' (000000001e9bb253): fill_kobj_path: path  
= '/devices/virtual/block/loop4'
kobject: 'queues' (0000000019e0690c): kobject_uevent_env
kobject: 'queues' (0000000019e0690c): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (00000000afeda5c2): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (00000000afeda5c2): kobject_uevent_env
kobject: 'rx-0' (00000000afeda5c2): fill_kobj_path: path  
= '/devices/virtual/net/ip6gre0/queues/rx-0'
kobject: 'tx-0' (000000004ea2b5e7): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (000000004ea2b5e7): kobject_uevent_env
kobject: 'tx-0' (000000004ea2b5e7): fill_kobj_path: path  
= '/devices/virtual/net/ip6gre0/queues/tx-0'
kobject: 'ip_vti0' (000000005bc278ba): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'ip_vti0' (000000005bc278ba): kobject_uevent_env
kobject: 'ip_vti0' (000000005bc278ba): fill_kobj_path: path  
= '/devices/virtual/net/ip_vti0'
kobject: 'queues' (000000002e225b4e): kobject_add_internal:  
parent: 'ip_vti0', set: '<NULL>'
kobject: 'queues' (000000002e225b4e): kobject_uevent_env
kobject: 'queues' (000000002e225b4e): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (000000006e75f4ca): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (000000006e75f4ca): kobject_uevent_env
kobject: 'rx-0' (000000006e75f4ca): fill_kobj_path: path  
= '/devices/virtual/net/ip_vti0/queues/rx-0'
kobject: 'tx-0' (0000000039077593): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (0000000039077593): kobject_uevent_env
kobject: 'tx-0' (0000000039077593): fill_kobj_path: path  
= '/devices/virtual/net/ip_vti0/queues/tx-0'
kobject: 'rx-0' (000000001a24142c): kobject_cleanup, parent 0000000028636b03
kobject: 'rx-0' (000000001a24142c): auto cleanup 'remove' event
kobject: 'rx-0' (000000001a24142c): kobject_uevent_env
kobject: 'rx-0' (000000001a24142c): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (000000001a24142c): auto cleanup kobject_del
kobject: 'rx-0' (000000001a24142c): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (0000000092b23e36): kobject_cleanup, parent 0000000028636b03
kobject: 'tx-0' (0000000092b23e36): auto cleanup 'remove' event
kobject: 'tx-0' (0000000092b23e36): kobject_uevent_env
kobject: 'tx-0' (0000000092b23e36): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (0000000092b23e36): auto cleanup kobject_del
kobject: 'tx-0' (0000000092b23e36): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (0000000028636b03): kobject_cleanup, parent            
(null)
kobject: 'queues' (0000000028636b03): calling ktype release
kobject: 'queues' (0000000028636b03): kset_release
kobject: 'queues': free name
kobject: 'ip6_vti0' (0000000020ef4527): kobject_uevent_env
kobject: 'ip6_vti0' (0000000020ef4527): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'syz_tun' (00000000f9c30323): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'syz_tun' (00000000f9c30323): kobject_uevent_env
kobject: 'syz_tun' (00000000f9c30323): fill_kobj_path: path  
= '/devices/virtual/net/syz_tun'
kobject: 'queues' (0000000041c26192): kobject_add_internal:  
parent: 'syz_tun', set: '<NULL>'
kobject: 'queues' (0000000041c26192): kobject_uevent_env
kobject: 'queues' (0000000041c26192): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (00000000954dd602): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (00000000954dd602): kobject_uevent_env
kobject: 'rx-0' (00000000954dd602): fill_kobj_path: path  
= '/devices/virtual/net/syz_tun/queues/rx-0'
kobject: 'tx-0' (000000005f836e67): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (000000005f836e67): kobject_uevent_env
kobject: 'tx-0' (000000005f836e67): fill_kobj_path: path  
= '/devices/virtual/net/syz_tun/queues/tx-0'
kobject: 'ip6_vti0' (0000000087375d88): kobject_add_internal:  
parent: 'net', set: 'devices'
kobject: 'ip6_vti0' (0000000087375d88): kobject_uevent_env
kobject: 'ip6_vti0' (0000000087375d88): fill_kobj_path: path  
= '/devices/virtual/net/ip6_vti0'
kobject: 'queues' (000000009eac168b): kobject_add_internal:  
parent: 'ip6_vti0', set: '<NULL>'
kobject: 'queues' (000000009eac168b): kobject_uevent_env
kobject: 'queues' (000000009eac168b): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (0000000028433a9e): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (0000000028433a9e): kobject_uevent_env
kobject: 'rx-0' (0000000028433a9e): fill_kobj_path: path  
= '/devices/virtual/net/ip6_vti0/queues/rx-0'
kobject: 'tx-0' (00000000098cde74): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (00000000098cde74): kobject_uevent_env
kobject: 'tx-0' (00000000098cde74): fill_kobj_path: path  
= '/devices/virtual/net/ip6_vti0/queues/tx-0'
kobject: 'ip6_vti0' (0000000020ef4527): kobject_cleanup, parent            
(null)
kobject: 'sit0' (0000000039b70061): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'sit0' (0000000039b70061): kobject_uevent_env
kobject: 'ip6_vti0' (0000000020ef4527): auto cleanup 'remove' event
kobject: 'sit0' (0000000039b70061): fill_kobj_path: path  
= '/devices/virtual/net/sit0'
kobject: 'ip6_vti0' (0000000020ef4527): kobject_uevent_env
kobject: 'queues' (00000000018e5271): kobject_add_internal: parent: 'sit0',  
set: '<NULL>'
kobject: 'queues' (00000000018e5271): kobject_uevent_env
kobject: 'ip6_vti0' (0000000020ef4527): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'queues' (00000000018e5271): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'ip6_vti0' (0000000020ef4527): calling ktype release
kobject: 'rx-0' (0000000021412345): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'ip6_vti0': free name
kobject: 'rx-0' (0000000021412345): kobject_uevent_env
kobject: 'rx-0' (0000000021412345): fill_kobj_path: path  
= '/devices/virtual/net/sit0/queues/rx-0'
kobject: 'tx-0' (00000000e9b27282): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (00000000e9b27282): kobject_uevent_env
kobject: 'tx-0' (00000000e9b27282): fill_kobj_path: path  
= '/devices/virtual/net/sit0/queues/tx-0'
kobject: 'rx-0' (000000005aa24b22): kobject_cleanup, parent 000000004cd2ac60
kobject: 'rx-0' (000000005aa24b22): auto cleanup 'remove' event
kobject: 'rx-0' (000000005aa24b22): kobject_uevent_env
kobject: 'rx-0' (000000005aa24b22): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (000000005aa24b22): auto cleanup kobject_del
kobject: 'rx-0' (000000005aa24b22): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000fc29b4de): kobject_cleanup, parent 000000004cd2ac60
kobject: 'tx-0' (00000000fc29b4de): auto cleanup 'remove' event
kobject: 'tx-0' (00000000fc29b4de): kobject_uevent_env
kobject: 'tx-0' (00000000fc29b4de): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (00000000fc29b4de): auto cleanup kobject_del
kobject: 'tx-0' (00000000fc29b4de): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (000000004cd2ac60): kobject_cleanup, parent            
(null)
kobject: 'queues' (000000004cd2ac60): calling ktype release
kobject: 'queues' (000000004cd2ac60): kset_release
kobject: 'queues': free name
kobject: 'ip_vti0' (00000000617c37c5): kobject_uevent_env
kobject: 'ip_vti0' (00000000617c37c5): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'ip6tnl0' (00000000b70e37b0): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'ip6tnl0' (00000000b70e37b0): kobject_uevent_env
kobject: 'ip6tnl0' (00000000b70e37b0): fill_kobj_path: path  
= '/devices/virtual/net/ip6tnl0'
kobject: 'queues' (0000000006a6c48d): kobject_add_internal:  
parent: 'ip6tnl0', set: '<NULL>'
kobject: 'queues' (0000000006a6c48d): kobject_uevent_env
kobject: 'queues' (0000000006a6c48d): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (000000000af89fbd): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (000000000af89fbd): kobject_uevent_env
kobject: 'rx-0' (000000000af89fbd): fill_kobj_path: path  
= '/devices/virtual/net/ip6tnl0/queues/rx-0'
kobject: 'tx-0' (000000001030a511): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (000000001030a511): kobject_uevent_env
kobject: 'tx-0' (000000001030a511): fill_kobj_path: path  
= '/devices/virtual/net/ip6tnl0/queues/tx-0'
kobject: 'ip6gre0' (00000000279f7ced): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'ip6gre0' (00000000279f7ced): kobject_uevent_env
kobject: 'ip6gre0' (00000000279f7ced): fill_kobj_path: path  
= '/devices/virtual/net/ip6gre0'
kobject: 'queues' (00000000445fd090): kobject_add_internal:  
parent: 'ip6gre0', set: '<NULL>'
kobject: 'queues' (00000000445fd090): kobject_uevent_env
kobject: 'queues' (00000000445fd090): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (000000001846accf): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (000000001846accf): kobject_uevent_env
kobject: 'rx-0' (000000001846accf): fill_kobj_path: path  
= '/devices/virtual/net/ip6gre0/queues/rx-0'
kobject: 'tx-0' (0000000089bc5a27): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (0000000089bc5a27): kobject_uevent_env
kobject: 'tx-0' (0000000089bc5a27): fill_kobj_path: path  
= '/devices/virtual/net/ip6gre0/queues/tx-0'
kobject: 'syz_tun' (00000000e07d3df0): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'ip_vti0' (00000000617c37c5): kobject_cleanup, parent            
(null)
kobject: 'syz_tun' (00000000e07d3df0): kobject_uevent_env
kobject: 'ip_vti0' (00000000617c37c5): auto cleanup 'remove' event
kobject: 'syz_tun' (00000000e07d3df0): fill_kobj_path: path  
= '/devices/virtual/net/syz_tun'
kobject: 'ip_vti0' (00000000617c37c5): kobject_uevent_env
kobject: 'ip_vti0' (00000000617c37c5): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'queues' (00000000e8902e54): kobject_add_internal:  
parent: 'syz_tun', set: '<NULL>'
kobject: 'ip_vti0' (00000000617c37c5): calling ktype release
kobject: 'queues' (00000000e8902e54): kobject_uevent_env
kobject: 'queues' (00000000e8902e54): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'ip_vti0': free name
kobject: 'rx-0' (00000000af14a71a): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (00000000af14a71a): kobject_uevent_env
kobject: 'rx-0' (00000000af14a71a): fill_kobj_path: path  
= '/devices/virtual/net/syz_tun/queues/rx-0'
kobject: 'tx-0' (000000006a8e698e): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (000000006a8e698e): kobject_uevent_env
kobject: 'tx-0' (000000006a8e698e): fill_kobj_path: path  
= '/devices/virtual/net/syz_tun/queues/tx-0'
kobject: 'rx-0' (000000005f5c75e6): kobject_cleanup, parent 000000004e456e48
kobject: 'rx-0' (000000005f5c75e6): auto cleanup 'remove' event
kobject: 'rx-0' (000000005f5c75e6): kobject_uevent_env
kobject: 'rx-0' (000000005f5c75e6): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (000000005f5c75e6): auto cleanup kobject_del
kobject: 'rx-0' (000000005f5c75e6): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000a98a4e66): kobject_cleanup, parent 000000004e456e48
kobject: 'tx-0' (00000000a98a4e66): auto cleanup 'remove' event
kobject: 'tx-0' (00000000a98a4e66): kobject_uevent_env
kobject: 'tx-0' (00000000a98a4e66): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (00000000a98a4e66): auto cleanup kobject_del
kobject: 'tx-0' (00000000a98a4e66): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (000000004e456e48): kobject_cleanup, parent            
(null)
kobject: 'queues' (000000004e456e48): calling ktype release
kobject: 'queues' (000000004e456e48): kset_release
kobject: 'queues': free name
kobject: 'erspan0' (00000000cf5ce776): kobject_uevent_env
kobject: 'erspan0' (00000000cf5ce776): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'erspan0' (00000000cf5ce776): kobject_cleanup, parent            
(null)
kobject: 'erspan0' (00000000cf5ce776): auto cleanup 'remove' event
kobject: 'erspan0' (00000000cf5ce776): kobject_uevent_env
kobject: 'erspan0' (00000000cf5ce776): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'erspan0' (00000000cf5ce776): calling ktype release
kobject: 'erspan0': free name
kobject: 'rx-0' (000000000ad8ad2c): kobject_cleanup, parent 000000005cdf48e5
kobject: 'rx-0' (000000000ad8ad2c): auto cleanup 'remove' event
kobject: 'rx-0' (000000000ad8ad2c): kobject_uevent_env
kobject: 'rx-0' (000000000ad8ad2c): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (000000000ad8ad2c): auto cleanup kobject_del
kobject: 'rx-0' (000000000ad8ad2c): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000c903a801): kobject_cleanup, parent 000000005cdf48e5
kobject: 'tx-0' (00000000c903a801): auto cleanup 'remove' event
kobject: 'tx-0' (00000000c903a801): kobject_uevent_env
kobject: 'tx-0' (00000000c903a801): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (00000000c903a801): auto cleanup kobject_del
kobject: 'tx-0' (00000000c903a801): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (000000005cdf48e5): kobject_cleanup, parent            
(null)
kobject: 'queues' (000000005cdf48e5): calling ktype release
kobject: 'queues' (000000005cdf48e5): kset_release
kobject: 'queues': free name
kobject: 'gretap0' (000000004d423aac): kobject_uevent_env
kobject: 'gretap0' (000000004d423aac): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'gretap0' (000000004d423aac): kobject_cleanup, parent            
(null)
kobject: 'gretap0' (000000004d423aac): auto cleanup 'remove' event
kobject: 'gretap0' (000000004d423aac): kobject_uevent_env
kobject: 'gretap0' (000000004d423aac): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'gretap0' (000000004d423aac): calling ktype release
kobject: 'gretap0': free name
kobject: 'rx-0' (00000000a4b747d7): kobject_cleanup, parent 000000003ccae0b4
kobject: 'rx-0' (00000000a4b747d7): auto cleanup 'remove' event
kobject: 'rx-0' (00000000a4b747d7): kobject_uevent_env
kobject: 'rx-0' (00000000a4b747d7): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (00000000a4b747d7): auto cleanup kobject_del
kobject: 'rx-0' (00000000a4b747d7): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000e6a79f88): kobject_cleanup, parent 000000003ccae0b4
kobject: 'tx-0' (00000000e6a79f88): auto cleanup 'remove' event
kobject: 'tx-0' (00000000e6a79f88): kobject_uevent_env
kobject: 'tx-0' (00000000e6a79f88): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (00000000e6a79f88): auto cleanup kobject_del
kobject: 'tx-0' (00000000e6a79f88): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (000000003ccae0b4): kobject_cleanup, parent            
(null)
kobject: 'queues' (000000003ccae0b4): calling ktype release
kobject: 'queues' (000000003ccae0b4): kset_release
kobject: 'queues': free name
kobject: 'gre0' (0000000077fb13a5): kobject_uevent_env
kobject: 'gre0' (0000000077fb13a5): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'ip6gretap0' (000000007281cf91): kobject_add_internal:  
parent: 'net', set: 'devices'
kobject: 'ip6gretap0' (000000007281cf91): kobject_uevent_env
kobject: 'ip6gretap0' (000000007281cf91): fill_kobj_path: path  
= '/devices/virtual/net/ip6gretap0'
kobject: 'queues' (00000000c5800ac6): kobject_add_internal:  
parent: 'ip6gretap0', set: '<NULL>'
kobject: 'queues' (00000000c5800ac6): kobject_uevent_env
kobject: 'queues' (00000000c5800ac6): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (000000002b4502a3): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (000000002b4502a3): kobject_uevent_env
kobject: 'rx-0' (000000002b4502a3): fill_kobj_path: path  
= '/devices/virtual/net/ip6gretap0/queues/rx-0'
kobject: 'tx-0' (000000007dec8283): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (000000007dec8283): kobject_uevent_env
kobject: 'tx-0' (000000007dec8283): fill_kobj_path: path  
= '/devices/virtual/net/ip6gretap0/queues/tx-0'
kobject: 'gre0' (0000000077fb13a5): kobject_cleanup, parent           (null)
kobject: 'gre0' (0000000077fb13a5): auto cleanup 'remove' event
kobject: 'gre0' (0000000077fb13a5): kobject_uevent_env
kobject: 'gre0' (0000000077fb13a5): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'gre0' (0000000077fb13a5): calling ktype release
kobject: 'gre0': free name
kobject: 'rx-0' (00000000c13182aa): kobject_cleanup, parent 000000000b2c1ed3
kobject: 'rx-0' (00000000c13182aa): auto cleanup 'remove' event
kobject: 'rx-0' (00000000c13182aa): kobject_uevent_env
kobject: 'rx-0' (00000000c13182aa): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (00000000c13182aa): auto cleanup kobject_del
kobject: 'rx-0' (00000000c13182aa): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000c70edf3f): kobject_cleanup, parent 000000000b2c1ed3
kobject: 'tx-0' (00000000c70edf3f): auto cleanup 'remove' event
kobject: 'tx-0' (00000000c70edf3f): kobject_uevent_env
kobject: 'tx-0' (00000000c70edf3f): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (00000000c70edf3f): auto cleanup kobject_del
kobject: 'tx-0' (00000000c70edf3f): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (000000000b2c1ed3): kobject_cleanup, parent            
(null)
kobject: 'queues' (000000000b2c1ed3): calling ktype release
kobject: 'queues' (000000000b2c1ed3): kset_release
kobject: 'queues': free name
kobject: 'tunl0' (00000000a752cb36): kobject_uevent_env
kobject: 'tunl0' (00000000a752cb36): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'bridge0' (00000000ec037900): kobject_add_internal: parent: 'net',  
set: 'devices'
kobject: 'bridge0' (00000000ec037900): kobject_uevent_env
kobject: 'bridge0' (00000000ec037900): fill_kobj_path: path  
= '/devices/virtual/net/bridge0'
kobject: 'queues' (00000000552da2fa): kobject_add_internal:  
parent: 'bridge0', set: '<NULL>'
kobject: 'queues' (00000000552da2fa): kobject_uevent_env
kobject: 'queues' (00000000552da2fa): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'rx-0' (0000000078141758): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'rx-0' (0000000078141758): kobject_uevent_env
kobject: 'rx-0' (0000000078141758): fill_kobj_path: path  
= '/devices/virtual/net/bridge0/queues/rx-0'
kobject: 'tx-0' (000000005e80af55): kobject_add_internal: parent: 'queues',  
set: 'queues'
kobject: 'tx-0' (000000005e80af55): kobject_uevent_env
kobject: 'tx-0' (000000005e80af55): fill_kobj_path: path  
= '/devices/virtual/net/bridge0/queues/tx-0'
kobject: 'brif' (00000000c8bf76bf): kobject_add_internal:  
parent: 'bridge0', set: '<NULL>'
kobject: 'tunl0' (00000000a752cb36): kobject_cleanup, parent            
(null)
kobject: 'tunl0' (00000000a752cb36): auto cleanup 'remove' event
kobject: 'tunl0' (00000000a752cb36): kobject_uevent_env
kobject: 'tunl0' (00000000a752cb36): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tunl0' (00000000a752cb36): calling ktype release
kobject: 'tunl0': free name
device bridge_slave_1 left promiscuous mode
bridge0: port 2(bridge_slave_1) entered disabled state
kobject: 'brport' (000000005031346d): kobject_uevent_env
kobject: 'brport' (000000005031346d): kobject_uevent_env: filter function  
caused the event to drop!
device bridge_slave_0 left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
kobject: 'brport' (000000005031346d): kobject_cleanup, parent            
(null)
kobject: 'brport' (000000005031346d): calling ktype release
kobject: 'brport': free name
kobject: 'brport' (00000000b1ad1e68): kobject_uevent_env
kobject: 'brport' (00000000b1ad1e68): kobject_uevent_env: filter function  
caused the event to drop!
kobject: 'brif' (000000006af76442): kobject_cleanup, parent 0000000028e7ba42
kobject: 'brif' (000000006af76442): auto cleanup kobject_del
kobject: 'brif' (000000006af76442): calling ktype release
kobject: (000000006af76442): dynamic_kobj_release
kobject: 'brif': free name
kobject: 'brport' (00000000b1ad1e68): kobject_cleanup, parent            
(null)
kobject: 'brport' (00000000b1ad1e68): calling ktype release
kobject: 'brport': free name
team0 (unregistering): Port device team_slave_1 removed
kobject: 'rx-0' (000000007779f1a6): kobject_cleanup, parent 000000004b650d31
kobject: 'rx-0' (000000007779f1a6): auto cleanup 'remove' event
kobject: 'rx-0' (000000007779f1a6): kobject_uevent_env
kobject: 'rx-0' (000000007779f1a6): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (000000007779f1a6): auto cleanup kobject_del
kobject: 'rx-0' (000000007779f1a6): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (0000000088012822): kobject_cleanup, parent 000000004b650d31
kobject: 'tx-0' (0000000088012822): auto cleanup 'remove' event
kobject: 'tx-0' (0000000088012822): kobject_uevent_env
kobject: 'tx-0' (0000000088012822): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (0000000088012822): auto cleanup kobject_del
kobject: 'tx-0' (0000000088012822): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (000000004b650d31): kobject_cleanup, parent            
(null)
kobject: 'queues' (000000004b650d31): calling ktype release
kobject: 'queues' (000000004b650d31): kset_release
kobject: 'queues': free name
kobject: 'team_slave_1' (0000000034c19cd0): kobject_uevent_env
kobject: 'team_slave_1' (0000000034c19cd0): kobject_uevent_env:  
uevent_suppress caused the event to drop!
kobject: 'rx-0' (00000000d720100c): kobject_cleanup, parent 000000004ada38be
kobject: 'rx-0' (00000000d720100c): auto cleanup 'remove' event
kobject: 'rx-0' (00000000d720100c): kobject_uevent_env
kobject: 'rx-0' (00000000d720100c): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (00000000d720100c): auto cleanup kobject_del
kobject: 'rx-0' (00000000d720100c): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (000000005a4e65c3): kobject_cleanup, parent 000000004ada38be
kobject: 'tx-0' (000000005a4e65c3): auto cleanup 'remove' event
kobject: 'tx-0' (000000005a4e65c3): kobject_uevent_env
kobject: 'tx-0' (000000005a4e65c3): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (000000005a4e65c3): auto cleanup kobject_del
kobject: 'tx-0' (000000005a4e65c3): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (000000004ada38be): kobject_cleanup, parent            
(null)
kobject: 'queues' (000000004ada38be): calling ktype release
kobject: 'queues' (000000004ada38be): kset_release
kobject: 'queues': free name
kobject: 'veth1_to_team' (00000000635494af): kobject_uevent_env
kobject: 'veth1_to_team' (00000000635494af): kobject_uevent_env:  
uevent_suppress caused the event to drop!
team0 (unregistering): Port device team_slave_0 removed
kobject: 'rx-0' (0000000026c2e8e9): kobject_cleanup, parent 00000000328f51f1
kobject: 'rx-0' (0000000026c2e8e9): auto cleanup 'remove' event
kobject: 'rx-0' (0000000026c2e8e9): kobject_uevent_env
kobject: 'rx-0' (0000000026c2e8e9): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (0000000026c2e8e9): auto cleanup kobject_del
kobject: 'rx-0' (0000000026c2e8e9): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000d45b45c1): kobject_cleanup, parent 00000000328f51f1
kobject: 'tx-0' (00000000d45b45c1): auto cleanup 'remove' event
kobject: 'tx-0' (00000000d45b45c1): kobject_uevent_env
kobject: 'tx-0' (00000000d45b45c1): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'tx-0' (00000000d45b45c1): auto cleanup kobject_del
kobject: 'tx-0' (00000000d45b45c1): calling ktype release
kobject: 'tx-0': free name
kobject: 'queues' (00000000328f51f1): kobject_cleanup, parent            
(null)
kobject: 'queues' (00000000328f51f1): calling ktype release
kobject: 'queues' (00000000328f51f1): kset_release
kobject: 'queues': free name
kobject: 'team_slave_0' (000000007ce7cb14): kobject_uevent_env
kobject: 'team_slave_0' (000000007ce7cb14): kobject_uevent_env:  
uevent_suppress caused the event to drop!
kobject: 'rx-0' (00000000cb91554e): kobject_cleanup, parent 000000009bb1eee4
kobject: 'rx-0' (00000000cb91554e): auto cleanup 'remove' event
kobject: 'rx-0' (00000000cb91554e): kobject_uevent_env
kobject: 'rx-0' (00000000cb91554e): kobject_uevent_env: uevent_suppress  
caused the event to drop!
kobject: 'rx-0' (00000000cb91554e): auto cleanup kobject_del
kobject: 'rx-0' (00000000cb91554e): calling ktype release
kobject: 'rx-0': free name
kobject: 'tx-0' (00000000f68b70cb): kobject_cleanup, parent 000000009bb1eee4
kobject: 'tx-0' (00000000f68b70cb): auto cleanup 'remove' event
kobject: 'tx-0' (00000000f68b70cb): kobject_u

---
This bug is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this bug report. See:
https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with  
syzbot.

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2018-09-28  5:51 BUG: MAX_LOCKDEP_CHAINS too low! syzbot
@ 2018-09-28  6:06 ` Dmitry Vyukov
  2018-09-28  7:00   ` Peter Zijlstra
  2019-10-20 23:33 ` syzbot
  1 sibling, 1 reply; 19+ messages in thread
From: Dmitry Vyukov @ 2018-09-28  6:06 UTC (permalink / raw)
  To: syzbot, Ingo Molnar, Peter Zijlstra, Will Deacon
  Cc: LKML, syzkaller-bugs, Thomas Gleixner

On Fri, Sep 28, 2018 at 7:51 AM, syzbot
<syzbot+aaa6fa4949cc5d9b7b25@syzkaller.appspotmail.com> wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit:    c307aaf3eb47 Merge tag 'iommu-fixes-v4.19-rc5' of git://gi..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=13810df1400000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=dfb440e26f0a6f6f
> dashboard link: https://syzkaller.appspot.com/bug?extid=aaa6fa4949cc5d9b7b25
> compiler:       gcc (GCC) 8.0.1 20180413 (experimental)
>
> Unfortunately, I don't have any reproducer for this crash yet.
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+aaa6fa4949cc5d9b7b25@syzkaller.appspotmail.com

+LOCKDEP maintainers,

What does this BUG mean? And how should it be fixed?

Thanks

> BUG: MAX_LOCKDEP_CHAINS too low!
> turning off the locking correctness validator.
> CPU: 0 PID: 9480 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #256
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
> Google 01/01/2011
> Call Trace:
>  __dump_stack lib/dump_stack.c:77 [inline]
>  dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
>  add_chain_cache kernel/locking/lockdep.c:2254 [inline]
>  lookup_chain_cache_add kernel/locking/lockdep.c:2366 [inline]
>  validate_chain kernel/locking/lockdep.c:2386 [inline]
>  __lock_acquire.cold.61+0x337/0x482 kernel/locking/lockdep.c:3411
>  lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3900
>  __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
>  _raw_spin_lock_irqsave+0x99/0xd0 kernel/locking/spinlock.c:152
>  debug_object_activate+0x1d4/0x600 lib/debugobjects.c:473
>  debug_hrtimer_activate kernel/time/hrtimer.c:416 [inline]
>  debug_activate kernel/time/hrtimer.c:465 [inline]
>  enqueue_hrtimer+0x97/0x560 kernel/time/hrtimer.c:954
>  __hrtimer_start_range_ns kernel/time/hrtimer.c:1089 [inline]
>  hrtimer_start_range_ns+0x640/0xe00 kernel/time/hrtimer.c:1115
>  hrtimer_start include/linux/hrtimer.h:398 [inline]
>  perf_swevent_start_hrtimer.part.74+0x19a/0x260 kernel/events/core.c:9145
>  perf_swevent_start_hrtimer kernel/events/core.c:9133 [inline]
>  cpu_clock_event_start+0x127/0x180 kernel/events/core.c:9203
>  cpu_clock_event_add+0x4d/0x50 kernel/events/core.c:9215
>  event_sched_in.isra.107+0x43c/0xe40 kernel/events/core.c:2279
>  group_sched_in+0xe4/0x400 kernel/events/core.c:2315
>  flexible_sched_in+0x792/0xc70 kernel/events/core.c:3309
>  visit_groups_merge+0x380/0x6c0 kernel/events/core.c:3257
>  ctx_flexible_sched_in kernel/events/core.c:3343 [inline]
>  ctx_sched_in+0x392/0x790 kernel/events/core.c:3388
>  perf_event_sched_in+0x6d/0xa0 kernel/events/core.c:2424
>  perf_event_context_sched_in kernel/events/core.c:3428 [inline]
>  __perf_event_task_sched_in+0x859/0xb60 kernel/events/core.c:3467
>  perf_event_task_sched_in include/linux/perf_event.h:1095 [inline]
>  finish_task_switch+0x366/0x900 kernel/sched/core.c:2673
>  context_switch kernel/sched/core.c:2828 [inline]
>  __schedule+0x874/0x1ed0 kernel/sched/core.c:3473
>  preempt_schedule_irq+0x87/0x110 kernel/sched/core.c:3700
>  retint_kernel+0x1b/0x2d
> RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788
> [inline]
> RIP: 0010:qlink_free mm/kasan/quarantine.c:150 [inline]
> RIP: 0010:qlist_free_all+0xf8/0x140 mm/kasan/quarantine.c:166
> Code: 40 10 00 00 00 00 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b8
> 8f c2 ff 48 83 3d 78 da af 07 00 74 46 48 8b 7d d0 57 9d <0f> 1f 44 00 00 eb
> ae 48 89 df e8 09 1c 76 ff 48 b9 00 00 00 00 00
> RSP: 0018:ffff88019362ebb8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
> RAX: 0000000000000000 RBX: ffff8801ac0a6a10 RCX: 1ffff10036f289f9
> RDX: 0000000000000000 RSI: ffff8801b7944fd0 RDI: 0000000000000286
> RBP: ffff88019362ebf0 R08: ffff8801b7944fc8 R09: 0000000000000006
> R10: 0000000000000000 R11: ffff8801b7944700 R12: 0000000000000000
> R13: ffff8801da94c500 R14: ffff88018e1a5f50 R15: ffffffff89723ac0
>  quarantine_reduce+0x163/0x1a0 mm/kasan/quarantine.c:259
>  kasan_kmalloc+0x9b/0xe0 mm/kasan/kasan.c:538
>  kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490
>  slab_post_alloc_hook mm/slab.h:444 [inline]
>  slab_alloc mm/slab.c:3392 [inline]
>  __do_kmalloc mm/slab.c:3716 [inline]
>  __kmalloc_track_caller+0x133/0x750 mm/slab.c:3733
>  kstrdup+0x39/0x70 mm/util.c:56
>  kstrdup_const+0x66/0x80 mm/util.c:77
>  __kernfs_new_node+0xe8/0x8d0 fs/kernfs/dir.c:630
>  kernfs_new_node+0x95/0x120 fs/kernfs/dir.c:695
>  kernfs_create_link+0xdb/0x250 fs/kernfs/symlink.c:40
>  sysfs_do_create_link_sd.isra.2+0x90/0x130 fs/sysfs/symlink.c:43
>  sysfs_do_create_link fs/sysfs/symlink.c:79 [inline]
>  sysfs_create_link+0x65/0xc0 fs/sysfs/symlink.c:91
>  driver_sysfs_add+0x109/0x350 drivers/base/dd.c:370
>  device_bind_driver+0x19/0xd0 drivers/base/dd.c:424
>  mac80211_hwsim_new_radio+0x48b/0x3570
> drivers/net/wireless/mac80211_hwsim.c:2688
>  hwsim_new_radio_nl+0x7dc/0xb20 drivers/net/wireless/mac80211_hwsim.c:3376
>  genl_family_rcv_msg+0x8a9/0x1140 net/netlink/genetlink.c:601
>  genl_rcv_msg+0xc6/0x168 net/netlink/genetlink.c:626
>  netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454
>  genl_rcv+0x28/0x40 net/netlink/genetlink.c:637
>  netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
>  netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1343
>  netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908
>  sock_sendmsg_nosec net/socket.c:621 [inline]
>  sock_sendmsg+0xd5/0x120 net/socket.c:631
>  ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116
>  __sys_sendmsg+0x11d/0x280 net/socket.c:2154
>  __do_sys_sendmsg net/socket.c:2163 [inline]
>  __se_sys_sendmsg net/socket.c:2161 [inline]
>  __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161
>  do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
>  entry_SYSCALL_64_after_hwframe+0x49/0xbe
> RIP: 0033:0x457579
> Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7
> 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff
> 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
> RSP: 002b:00007f6a204f7c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
> RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579
> RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000004
> RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6a204f86d4
> R13: 00000000004c3891 R14: 00000000004d56d0 R15: 00000000ffffffff
> kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
> kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path =
> '/devices/virtual/block/loop3'
> kobject: 'loop2' (000000007177bce6): kobject_uevent_env
> kobject: 'loop2' (000000007177bce6): fill_kobj_path: path =
> '/devices/virtual/block/loop2'
> kobject: 'loop5' (0000000033af2aa2): kobject_uevent_env
> kobject: 'loop5' (0000000033af2aa2): fill_kobj_path: path =
> '/devices/virtual/block/loop5'
> kobject: 'loop0' (000000001b064100): kobject_uevent_env
> kobject: 'loop0' (000000001b064100): fill_kobj_path: path =
> '/devices/virtual/block/loop0'
> kobject: 'rx-0' (00000000b5f3f776): kobject_cleanup, parent 0000000027ec32cd
> kobject: 'hwsim77' (000000006f94a6e0): kobject_uevent_env
> kobject: 'rx-0' (00000000b5f3f776): auto cleanup 'remove' event
> kobject: 'hwsim77' (000000006f94a6e0): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim77'
> kobject: 'loop5' (0000000033af2aa2): kobject_uevent_env
> kobject: 'rx-0' (00000000b5f3f776): kobject_uevent_env
> kobject: 'loop5' (0000000033af2aa2): fill_kobj_path: path =
> '/devices/virtual/block/loop5'
> kobject: 'rx-0' (00000000b5f3f776): fill_kobj_path: path =
> '/devices/virtual/net/syz_tun/queues/rx-0'
> kobject: 'rx-0' (00000000b5f3f776): auto cleanup kobject_del
> kobject: 'rx-0' (00000000b5f3f776): calling ktype release
> kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
> kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path =
> '/devices/virtual/block/loop3'
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000ac11dd12): kobject_cleanup, parent 0000000027ec32cd
> kobject: 'tx-0' (00000000ac11dd12): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000ac11dd12): kobject_uevent_env
> kobject: 'tx-0' (00000000ac11dd12): fill_kobj_path: path =
> '/devices/virtual/net/syz_tun/queues/tx-0'
> kobject: 'loop0' (000000001b064100): kobject_uevent_env
> kobject: 'tx-0' (00000000ac11dd12): auto cleanup kobject_del
> kobject: 'tx-0' (00000000ac11dd12): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (0000000027ec32cd): kobject_cleanup, parent
> (null)
> kobject: 'queues' (0000000027ec32cd): calling ktype release
> kobject: 'queues' (0000000027ec32cd): kset_release
> kobject: 'queues': free name
> kobject: 'syz_tun' (000000007668427e): kobject_uevent_env
> kobject: 'syz_tun' (000000007668427e): fill_kobj_path: path =
> '/devices/virtual/net/syz_tun'
> kobject: 'loop0' (000000001b064100): fill_kobj_path: path =
> '/devices/virtual/block/loop0'
> kobject: 'ieee80211' (00000000abea8d1d): kobject_add_internal: parent:
> 'hwsim77', set: '(null)'
> kobject: 'phy77' (00000000f56381dc): kobject_add_internal: parent:
> 'ieee80211', set: 'devices'
> kobject: 'phy77' (00000000f56381dc): kobject_uevent_env
> kobject: 'phy77' (00000000f56381dc): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim77/ieee80211/phy77'
> kobject: 'rfkill96' (000000002d5dfeef): kobject_add_internal: parent:
> 'phy77', set: 'devices'
> kobject: 'rfkill96' (000000002d5dfeef): kobject_uevent_env
> kobject: 'rfkill96' (000000002d5dfeef): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim77/ieee80211/phy77/rfkill96'
> kobject: 'rx-0' (00000000c2635233): kobject_cleanup, parent 0000000095e05fe0
> kobject: 'rx-0' (00000000c2635233): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000c2635233): kobject_uevent_env
> kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
> kobject: 'rx-0' (00000000c2635233): fill_kobj_path: path =
> '/devices/virtual/net/syz_tun/queues/rx-0'
> kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path =
> '/devices/virtual/block/loop3'
> kobject: 'rx-0' (00000000c2635233): auto cleanup kobject_del
> kobject: 'rx-0' (00000000c2635233): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000f7614753): kobject_cleanup, parent 0000000095e05fe0
> kobject: 'tx-0' (00000000f7614753): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000f7614753): kobject_uevent_env
> kobject: 'tx-0' (00000000f7614753): fill_kobj_path: path =
> '/devices/virtual/net/syz_tun/queues/tx-0'
> kobject: 'tx-0' (00000000f7614753): auto cleanup kobject_del
> kobject: 'tx-0' (00000000f7614753): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (0000000095e05fe0): kobject_cleanup, parent
> (null)
> kobject: 'queues' (0000000095e05fe0): calling ktype release
> kobject: 'queues' (0000000095e05fe0): kset_release
> kobject: 'queues': free name
> kobject: 'syz_tun' (00000000eb4cc7f0): kobject_uevent_env
> kobject: 'syz_tun' (00000000eb4cc7f0): fill_kobj_path: path =
> '/devices/virtual/net/syz_tun'
> kobject: 'syz_tun' (000000007668427e): kobject_cleanup, parent
> (null)
> kobject: 'syz_tun' (000000007668427e): calling ktype release
> kobject: 'syz_tun': free name
> kobject: 'rx-0' (0000000061d1b261): kobject_cleanup, parent 00000000f88fdb0a
> kobject: 'rx-0' (0000000061d1b261): auto cleanup 'remove' event
> kobject: 'rx-0' (0000000061d1b261): kobject_uevent_env
> kobject: 'loop0' (000000001b064100): kobject_uevent_env
> kobject: 'rx-0' (0000000061d1b261): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'loop0' (000000001b064100): fill_kobj_path: path =
> '/devices/virtual/block/loop0'
> kobject: 'rx-0' (0000000061d1b261): auto cleanup kobject_del
> kobject: 'rx-0' (0000000061d1b261): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000544c7408): kobject_cleanup, parent 00000000f88fdb0a
> kobject: 'tx-0' (00000000544c7408): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000544c7408): kobject_uevent_env
> kobject: 'tx-0' (00000000544c7408): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000544c7408): auto cleanup kobject_del
> kobject: 'tx-0' (00000000544c7408): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000f88fdb0a): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000f88fdb0a): calling ktype release
> kobject: 'queues' (00000000f88fdb0a): kset_release
> kobject: 'queues': free name
> kobject: 'ip6gre0' (00000000f6cb3a1b): kobject_uevent_env
> kobject: 'ip6gre0' (00000000f6cb3a1b): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000c5992233): kobject_cleanup, parent 00000000a931fc66
> kobject: 'rx-0' (00000000c5992233): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000c5992233): kobject_uevent_env
> kobject: 'rx-0' (00000000c5992233): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000c5992233): auto cleanup kobject_del
> kobject: 'rx-0' (00000000c5992233): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (000000001492ee3e): kobject_cleanup, parent 00000000a931fc66
> kobject: 'tx-0' (000000001492ee3e): auto cleanup 'remove' event
> kobject: 'tx-0' (000000001492ee3e): kobject_uevent_env
> kobject: 'tx-0' (000000001492ee3e): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (000000001492ee3e): auto cleanup kobject_del
> kobject: 'tx-0' (000000001492ee3e): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000a931fc66): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000a931fc66): calling ktype release
> kobject: 'queues' (00000000a931fc66): kset_release
> kobject: 'queues': free name
> kobject: 'ip6gretap0' (0000000072f65534): kobject_uevent_env
> kobject: 'ip6gretap0' (0000000072f65534): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'rfkill96' (000000002d5dfeef): kobject_uevent_env
> ieee80211 phy77: Selected rate control algorithm 'minstrel_ht'
> kobject: 'rfkill96' (000000002d5dfeef): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim77/ieee80211/phy77/rfkill96'
> kobject: 'net' (0000000039f969e1): kobject_add_internal: parent: 'hwsim77',
> set: '(null)'
> kobject: 'wlan8' (0000000068e8141f): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'wlan8' (0000000068e8141f): kobject_uevent_env
> kobject: 'wlan8' (0000000068e8141f): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim77/net/wlan8'
> kobject: 'queues' (000000006901efd4): kobject_add_internal: parent: 'wlan8',
> set: '<NULL>'
> kobject: 'queues' (000000006901efd4): kobject_uevent_env
> kobject: 'queues' (000000006901efd4): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (000000009e31e178): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (000000009e31e178): kobject_uevent_env
> kobject: 'rx-0' (000000009e31e178): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim77/net/wlan8/queues/rx-0'
> kobject: 'tx-0' (0000000098527b68): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (0000000098527b68): kobject_uevent_env
> kobject: 'tx-0' (0000000098527b68): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim77/net/wlan8/queues/tx-0'
> kobject: 'tx-1' (00000000b5a91c3f): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-1' (00000000b5a91c3f): kobject_uevent_env
> kobject: 'tx-1' (00000000b5a91c3f): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim77/net/wlan8/queues/tx-1'
> kobject: 'tx-2' (00000000f19487ce): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-2' (00000000f19487ce): kobject_uevent_env
> kobject: 'tx-2' (00000000f19487ce): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim77/net/wlan8/queues/tx-2'
> kobject: 'tx-3' (0000000064ef4ef0): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-3' (0000000064ef4ef0): kobject_uevent_env
> kobject: 'tx-3' (0000000064ef4ef0): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim77/net/wlan8/queues/tx-3'
> kobject: 'syz_tun' (00000000eb4cc7f0): kobject_cleanup, parent
> (null)
> kobject: 'syz_tun' (00000000eb4cc7f0): calling ktype release
> kobject: 'syz_tun': free name
> kobject: 'loop1' (00000000261da70b): kobject_uevent_env
> kobject: 'loop1' (00000000261da70b): fill_kobj_path: path =
> '/devices/virtual/block/loop1'
> kobject: 'ip6gre0' (00000000f6cb3a1b): kobject_cleanup, parent
> (null)
> kobject: 'loop4' (000000001e9bb253): kobject_uevent_env
> kobject: 'ip6gre0' (00000000f6cb3a1b): auto cleanup 'remove' event
> kobject: 'hwsim78' (00000000ed32663c): kobject_add_internal: parent:
> 'mac80211_hwsim', set: 'devices'
> kobject: 'loop4' (000000001e9bb253): fill_kobj_path: path =
> '/devices/virtual/block/loop4'
> kobject: 'ip6gre0' (00000000f6cb3a1b): kobject_uevent_env
> kobject: 'loop0' (000000001b064100): kobject_uevent_env
> kobject: 'loop0' (000000001b064100): fill_kobj_path: path =
> '/devices/virtual/block/loop0'
> kobject: 'ip6gre0' (00000000f6cb3a1b): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'hwsim78' (00000000ed32663c): kobject_uevent_env
> kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
> kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path =
> '/devices/virtual/block/loop3'
> kobject: 'ip6gre0' (00000000f6cb3a1b): calling ktype release
> kobject: 'hwsim78' (00000000ed32663c): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim78'
> kobject: 'ip6gre0': free name
> kobject: 'loop0' (000000001b064100): kobject_uevent_env
> kobject: 'loop0' (000000001b064100): fill_kobj_path: path =
> '/devices/virtual/block/loop0'
> IPVS: ftp: loaded support on port[0] = 21
> kobject: 'hwsim78' (00000000ed32663c): kobject_uevent_env
> kobject: 'ip6gretap0' (0000000072f65534): kobject_cleanup, parent
> (null)
> kobject: 'ip6gretap0' (0000000072f65534): auto cleanup 'remove' event
> kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
> kobject: 'lo' (0000000026ed1e89): kobject_add_internal: parent: 'net', set:
> 'devices'
> kobject: 'ip6gretap0' (0000000072f65534): kobject_uevent_env
> kobject: 'hwsim78' (00000000ed32663c): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim78'
> kobject: 'lo' (0000000026ed1e89): kobject_uevent_env
> kobject: 'ip6gretap0' (0000000072f65534): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path =
> '/devices/virtual/block/loop3'
> kobject: 'lo' (0000000026ed1e89): fill_kobj_path: path =
> '/devices/virtual/net/lo'
> kobject: 'ip6gretap0' (0000000072f65534): calling ktype release
> kobject: 'loop0' (000000001b064100): kobject_uevent_env
> kobject: 'ip6gretap0': free name
> kobject: 'queues' (000000009fc73604): kobject_add_internal: parent: 'lo',
> set: '<NULL>'
> kobject: 'loop0' (000000001b064100): fill_kobj_path: path =
> '/devices/virtual/block/loop0'
> kobject: 'queues' (000000009fc73604): kobject_uevent_env
> IPVS: ftp: loaded support on port[0] = 21
> kobject: 'queues' (000000009fc73604): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (00000000435d09f3): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000435d09f3): kobject_uevent_env
> kobject: 'rx-0' (00000000435d09f3): fill_kobj_path: path =
> '/devices/virtual/net/lo/queues/rx-0'
> kobject: 'tx-0' (0000000098392069): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (0000000098392069): kobject_uevent_env
> kobject: 'tx-0' (0000000098392069): fill_kobj_path: path =
> '/devices/virtual/net/lo/queues/tx-0'
> kobject: 'tunl0' (000000001e342edc): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'tunl0' (000000001e342edc): kobject_uevent_env
> kobject: 'tunl0' (000000001e342edc): fill_kobj_path: path =
> '/devices/virtual/net/tunl0'
> kobject: 'queues' (000000005361d6aa): kobject_add_internal: parent: 'tunl0',
> set: '<NULL>'
> kobject: 'queues' (000000005361d6aa): kobject_uevent_env
> kobject: 'queues' (000000005361d6aa): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (00000000f46bc135): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000f46bc135): kobject_uevent_env
> kobject: 'rx-0' (00000000f46bc135): fill_kobj_path: path =
> '/devices/virtual/net/tunl0/queues/rx-0'
> kobject: 'tx-0' (00000000f09f92cb): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (00000000f09f92cb): kobject_uevent_env
> kobject: 'tx-0' (00000000f09f92cb): fill_kobj_path: path =
> '/devices/virtual/net/tunl0/queues/tx-0'
> kobject: 'gre0' (00000000e089a5b3): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'gre0' (00000000e089a5b3): kobject_uevent_env
> kobject: 'gre0' (00000000e089a5b3): fill_kobj_path: path =
> '/devices/virtual/net/gre0'
> kobject: 'queues' (0000000090d6237c): kobject_add_internal: parent: 'gre0',
> set: '<NULL>'
> kobject: 'queues' (0000000090d6237c): kobject_uevent_env
> kobject: 'queues' (0000000090d6237c): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (000000008dc59821): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (000000008dc59821): kobject_uevent_env
> kobject: 'rx-0' (000000008dc59821): fill_kobj_path: path =
> '/devices/virtual/net/gre0/queues/rx-0'
> kobject: 'tx-0' (00000000b063970c): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (00000000b063970c): kobject_uevent_env
> kobject: 'tx-0' (00000000b063970c): fill_kobj_path: path =
> '/devices/virtual/net/gre0/queues/tx-0'
> kobject: 'gretap0' (00000000d45f51ef): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'gretap0' (00000000d45f51ef): kobject_uevent_env
> kobject: 'gretap0' (00000000d45f51ef): fill_kobj_path: path =
> '/devices/virtual/net/gretap0'
> kobject: 'queues' (000000004e0689ff): kobject_add_internal: parent:
> 'gretap0', set: '<NULL>'
> kobject: 'queues' (000000004e0689ff): kobject_uevent_env
> kobject: 'queues' (000000004e0689ff): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (0000000057f00024): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (0000000057f00024): kobject_uevent_env
> kobject: 'rx-0' (0000000057f00024): fill_kobj_path: path =
> '/devices/virtual/net/gretap0/queues/rx-0'
> kobject: 'tx-0' (0000000084733bae): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (0000000084733bae): kobject_uevent_env
> kobject: 'tx-0' (0000000084733bae): fill_kobj_path: path =
> '/devices/virtual/net/gretap0/queues/tx-0'
> kobject: 'erspan0' (00000000629238cb): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'erspan0' (00000000629238cb): kobject_uevent_env
> kobject: 'erspan0' (00000000629238cb): fill_kobj_path: path =
> '/devices/virtual/net/erspan0'
> kobject: 'queues' (00000000a7870bef): kobject_add_internal: parent:
> 'erspan0', set: '<NULL>'
> kobject: 'queues' (00000000a7870bef): kobject_uevent_env
> kobject: 'queues' (00000000a7870bef): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (000000008ccdd182): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (000000008ccdd182): kobject_uevent_env
> kobject: 'rx-0' (000000008ccdd182): fill_kobj_path: path =
> '/devices/virtual/net/erspan0/queues/rx-0'
> kobject: 'tx-0' (00000000ca475f8c): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (00000000ca475f8c): kobject_uevent_env
> kobject: 'tx-0' (00000000ca475f8c): fill_kobj_path: path =
> '/devices/virtual/net/erspan0/queues/tx-0'
> kobject: 'ieee80211' (0000000034003b2d): kobject_add_internal: parent:
> 'hwsim78', set: '(null)'
> kobject: 'phy78' (00000000b6656112): kobject_add_internal: parent:
> 'ieee80211', set: 'devices'
> kobject: 'phy78' (00000000b6656112): kobject_uevent_env
> kobject: 'phy78' (00000000b6656112): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim78/ieee80211/phy78'
> kobject: 'rfkill97' (00000000f97c6bd6): kobject_add_internal: parent:
> 'phy78', set: 'devices'
> kobject: 'rfkill97' (00000000f97c6bd6): kobject_uevent_env
> kobject: 'rfkill97' (00000000f97c6bd6): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim78/ieee80211/phy78/rfkill97'
> kobject: 'rx-0' (000000007daa8947): kobject_cleanup, parent 0000000091940c5f
> kobject: 'rx-0' (000000007daa8947): auto cleanup 'remove' event
> kobject: 'rx-0' (000000007daa8947): kobject_uevent_env
> kobject: 'rx-0' (000000007daa8947): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (000000007daa8947): auto cleanup kobject_del
> kobject: 'rx-0' (000000007daa8947): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000861a74db): kobject_cleanup, parent 0000000091940c5f
> kobject: 'tx-0' (00000000861a74db): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000861a74db): kobject_uevent_env
> kobject: 'tx-0' (00000000861a74db): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000861a74db): auto cleanup kobject_del
> kobject: 'tx-0' (00000000861a74db): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (0000000091940c5f): kobject_cleanup, parent
> (null)
> kobject: 'queues' (0000000091940c5f): calling ktype release
> kobject: 'queues' (0000000091940c5f): kset_release
> kobject: 'queues': free name
> kobject: 'ip6tnl0' (000000005239a013): kobject_uevent_env
> kobject: 'ip6tnl0' (000000005239a013): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'lo' (0000000011a2116b): kobject_add_internal: parent: 'net', set:
> 'devices'
> kobject: 'lo' (0000000011a2116b): kobject_uevent_env
> kobject: 'lo' (0000000011a2116b): fill_kobj_path: path =
> '/devices/virtual/net/lo'
> kobject: 'queues' (00000000fdf6ce56): kobject_add_internal: parent: 'lo',
> set: '<NULL>'
> kobject: 'queues' (00000000fdf6ce56): kobject_uevent_env
> kobject: 'queues' (00000000fdf6ce56): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (00000000f8b6c016): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000f8b6c016): kobject_uevent_env
> kobject: 'rx-0' (00000000f8b6c016): fill_kobj_path: path =
> '/devices/virtual/net/lo/queues/rx-0'
> kobject: 'tx-0' (000000007324da58): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000007324da58): kobject_uevent_env
> kobject: 'tx-0' (000000007324da58): fill_kobj_path: path =
> '/devices/virtual/net/lo/queues/tx-0'
> kobject: 'ip_vti0' (0000000044d40d2e): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'ip_vti0' (0000000044d40d2e): kobject_uevent_env
> kobject: 'ip_vti0' (0000000044d40d2e): fill_kobj_path: path =
> '/devices/virtual/net/ip_vti0'
> kobject: 'queues' (00000000d3e39d5a): kobject_add_internal: parent:
> 'ip_vti0', set: '<NULL>'
> kobject: 'queues' (00000000d3e39d5a): kobject_uevent_env
> kobject: 'queues' (00000000d3e39d5a): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (0000000023c378b6): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (0000000023c378b6): kobject_uevent_env
> kobject: 'rx-0' (0000000023c378b6): fill_kobj_path: path =
> '/devices/virtual/net/ip_vti0/queues/rx-0'
> kobject: 'tx-0' (00000000f4b30b04): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (00000000f4b30b04): kobject_uevent_env
> kobject: 'tx-0' (00000000f4b30b04): fill_kobj_path: path =
> '/devices/virtual/net/ip_vti0/queues/tx-0'
> kobject: 'rfkill97' (00000000f97c6bd6): kobject_uevent_env
> ieee80211 phy78: Selected rate control algorithm 'minstrel_ht'
> kobject: 'rfkill97' (00000000f97c6bd6): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim78/ieee80211/phy78/rfkill97'
> kobject: 'net' (00000000fd3fcd8d): kobject_add_internal: parent: 'hwsim78',
> set: '(null)'
> kobject: 'wlan9' (00000000929337df): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'wlan9' (00000000929337df): kobject_uevent_env
> kobject: 'wlan9' (00000000929337df): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim78/net/wlan9'
> kobject: 'queues' (0000000063cd3400): kobject_add_internal: parent: 'wlan9',
> set: '<NULL>'
> kobject: 'queues' (0000000063cd3400): kobject_uevent_env
> kobject: 'queues' (0000000063cd3400): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (00000000ef1fcb8f): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000ef1fcb8f): kobject_uevent_env
> kobject: 'rx-0' (00000000ef1fcb8f): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim78/net/wlan9/queues/rx-0'
> kobject: 'tx-0' (000000007abf9854): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000007abf9854): kobject_uevent_env
> kobject: 'tx-0' (000000007abf9854): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim78/net/wlan9/queues/tx-0'
> kobject: 'tx-1' (000000006726ac4e): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-1' (000000006726ac4e): kobject_uevent_env
> kobject: 'tx-1' (000000006726ac4e): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim78/net/wlan9/queues/tx-1'
> kobject: 'tx-2' (000000002b70d9f7): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-2' (000000002b70d9f7): kobject_uevent_env
> kobject: 'tx-2' (000000002b70d9f7): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim78/net/wlan9/queues/tx-2'
> kobject: 'tx-3' (000000005fa9262f): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-3' (000000005fa9262f): kobject_uevent_env
> kobject: 'tx-3' (000000005fa9262f): fill_kobj_path: path =
> '/devices/virtual/mac80211_hwsim/hwsim78/net/wlan9/queues/tx-3'
> kobject: 'ip6tnl0' (000000005239a013): kobject_cleanup, parent
> (null)
> kobject: 'tunl0' (00000000008014d3): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'ip6tnl0' (000000005239a013): auto cleanup 'remove' event
> kobject: 'ip6tnl0' (000000005239a013): kobject_uevent_env
> kobject: 'ip6tnl0' (000000005239a013): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'ip6tnl0' (000000005239a013): calling ktype release
> kobject: 'ip6tnl0': free name
> kobject: 'loop1' (00000000261da70b): kobject_uevent_env
> kobject: 'loop1' (00000000261da70b): fill_kobj_path: path =
> '/devices/virtual/block/loop1'
> kobject: 'loop0' (000000001b064100): kobject_uevent_env
> kobject: 'tunl0' (00000000008014d3): kobject_uevent_env
> kobject: 'loop4' (000000001e9bb253): kobject_uevent_env
> kobject: 'loop0' (000000001b064100): fill_kobj_path: path =
> '/devices/virtual/block/loop0'
> kobject: 'tunl0' (00000000008014d3): fill_kobj_path: path =
> '/devices/virtual/net/tunl0'
> kobject: 'loop4' (000000001e9bb253): fill_kobj_path: path =
> '/devices/virtual/block/loop4'
> f2fs_msg: 6 callbacks suppressed
> F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
> kobject: 'queues' (0000000085ad9b5f): kobject_add_internal: parent: 'tunl0',
> set: '<NULL>'
> F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
> kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
> attempt to access beyond end of device
> loop0: rw=12288, want=8200, limit=20
> attempt to access beyond end of device
> loop0: rw=12288, want=12296, limit=20
> kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path =
> '/devices/virtual/block/loop3'
> F2FS-fs (loop0): Failed to get valid F2FS checkpoint
> F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
> F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
> kobject: 'queues' (0000000085ad9b5f): kobject_uevent_env
> attempt to access beyond end of device
> loop0: rw=12288, want=8200, limit=20
> attempt to access beyond end of device
> loop0: rw=12288, want=12296, limit=20
> kobject: 'queues' (0000000085ad9b5f): kobject_uevent_env: filter function
> caused the event to drop!
> F2FS-fs (loop0): Failed to get valid F2FS checkpoint
> kobject: 'rx-0' (000000001fb7db9b): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (000000001fb7db9b): kobject_uevent_env
> kobject: 'rx-0' (000000001fb7db9b): fill_kobj_path: path =
> '/devices/virtual/net/tunl0/queues/rx-0'
> kobject: 'tx-0' (000000004dbf1fa8): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000004dbf1fa8): kobject_uevent_env
> kobject: 'tx-0' (000000004dbf1fa8): fill_kobj_path: path =
> '/devices/virtual/net/tunl0/queues/tx-0'
> kobject: 'gre0' (000000001ff413c5): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'gre0' (000000001ff413c5): kobject_uevent_env
> kobject: 'gre0' (000000001ff413c5): fill_kobj_path: path =
> '/devices/virtual/net/gre0'
> kobject: 'queues' (000000008553a1e7): kobject_add_internal: parent: 'gre0',
> set: '<NULL>'
> kobject: 'loop0' (000000001b064100): kobject_uevent_env
> kobject: 'queues' (000000008553a1e7): kobject_uevent_env
> kobject: 'queues' (000000008553a1e7): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (000000002ec2b04e): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (000000002ec2b04e): kobject_uevent_env
> kobject: 'loop0' (000000001b064100): fill_kobj_path: path =
> '/devices/virtual/block/loop0'
> kobject: 'rx-0' (000000002ec2b04e): fill_kobj_path: path =
> '/devices/virtual/net/gre0/queues/rx-0'
> kobject: 'tx-0' (0000000078e14477): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (0000000078e14477): kobject_uevent_env
> kobject: 'tx-0' (0000000078e14477): fill_kobj_path: path =
> '/devices/virtual/net/gre0/queues/tx-0'
> kobject: 'loop0' (000000001b064100): kobject_uevent_env
> kobject: 'ip6_vti0' (000000008e2c8c23): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'loop0' (000000001b064100): fill_kobj_path: path =
> '/devices/virtual/block/loop0'
> F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
> kobject: 'ip6_vti0' (000000008e2c8c23): kobject_uevent_env
> F2FS-fs (loop0): Can't find valid F2FS filesystem in 1th superblock
> kobject: 'ip6_vti0' (000000008e2c8c23): fill_kobj_path: path =
> '/devices/virtual/net/ip6_vti0'
> attempt to access beyond end of device
> kobject: 'queues' (00000000eaea788f): kobject_add_internal: parent:
> 'ip6_vti0', set: '<NULL>'
> loop0: rw=12288, want=8200, limit=20
> attempt to access beyond end of device
> kobject: 'queues' (00000000eaea788f): kobject_uevent_env
> loop0: rw=12288, want=12296, limit=20
> kobject: 'queues' (00000000eaea788f): kobject_uevent_env: filter function
> caused the event to drop!
> F2FS-fs (loop0): Failed to get valid F2FS checkpoint
> F2FS-fs (loop0): Magic Mismatch, valid(0xf2f52010) - read(0x0)
> kobject: 'rx-0' (0000000041c09ad6): kobject_add_internal: parent: 'queues',
> set: 'queues'
> attempt to access beyond end of device
> kobject: 'rx-0' (0000000041c09ad6): kobject_uevent_env
> loop0: rw=12288, want=8200, limit=20
> kobject: 'rx-0' (0000000041c09ad6): fill_kobj_path: path =
> '/devices/virtual/net/ip6_vti0/queues/rx-0'
> attempt to access beyond end of device
> loop0: rw=12288, want=12296, limit=20
> kobject: 'tx-0' (00000000188d926f): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (00000000188d926f): kobject_uevent_env
> kobject: 'tx-0' (00000000188d926f): fill_kobj_path: path =
> '/devices/virtual/net/ip6_vti0/queues/tx-0'
> kobject: 'rx-0' (00000000198dbba6): kobject_cleanup, parent 00000000f5491f13
> kobject: 'rx-0' (00000000198dbba6): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000198dbba6): kobject_uevent_env
> kobject: 'rx-0' (00000000198dbba6): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000198dbba6): auto cleanup kobject_del
> kobject: 'loop0' (000000001b064100): kobject_uevent_env
> kobject: 'rx-0' (00000000198dbba6): calling ktype release
> kobject: 'loop0' (000000001b064100): fill_kobj_path: path =
> '/devices/virtual/block/loop0'
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000b008619e): kobject_cleanup, parent 00000000f5491f13
> kobject: 'tx-0' (00000000b008619e): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000b008619e): kobject_uevent_env
> kobject: 'tx-0' (00000000b008619e): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000b008619e): auto cleanup kobject_del
> kobject: 'tx-0' (00000000b008619e): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000f5491f13): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000f5491f13): calling ktype release
> kobject: 'queues' (00000000f5491f13): kset_release
> kobject: 'queues': free name
> kobject: 'sit0' (00000000c7a47a9c): kobject_uevent_env
> kobject: 'sit0' (00000000c7a47a9c): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'gretap0' (00000000e84b27d6): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'loop3' (0000000049972f9d): kobject_uevent_env
> kobject: 'loop3' (0000000049972f9d): fill_kobj_path: path =
> '/devices/virtual/block/loop3'
> kobject: 'gretap0' (00000000e84b27d6): kobject_uevent_env
> kobject: 'gretap0' (00000000e84b27d6): fill_kobj_path: path =
> '/devices/virtual/net/gretap0'
> kobject: 'queues' (0000000044843888): kobject_add_internal: parent:
> 'gretap0', set: '<NULL>'
> kobject: 'loop1' (00000000261da70b): kobject_uevent_env
> kobject: 'queues' (0000000044843888): kobject_uevent_env
> kobject: 'loop1' (00000000261da70b): fill_kobj_path: path =
> '/devices/virtual/block/loop1'
> kobject: 'queues' (0000000044843888): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (00000000a6a8e870): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000a6a8e870): kobject_uevent_env
> kobject: 'rx-0' (00000000a6a8e870): fill_kobj_path: path =
> '/devices/virtual/net/gretap0/queues/rx-0'
> kobject: 'tx-0' (000000000f82eab0): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000000f82eab0): kobject_uevent_env
> kobject: 'tx-0' (000000000f82eab0): fill_kobj_path: path =
> '/devices/virtual/net/gretap0/queues/tx-0'
> kobject: 'erspan0' (0000000090b660a5): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'erspan0' (0000000090b660a5): kobject_uevent_env
> kobject: 'erspan0' (0000000090b660a5): fill_kobj_path: path =
> '/devices/virtual/net/erspan0'
> kobject: 'queues' (0000000020ef6b7a): kobject_add_internal: parent:
> 'erspan0', set: '<NULL>'
> kobject: 'queues' (0000000020ef6b7a): kobject_uevent_env
> kobject: 'queues' (0000000020ef6b7a): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (0000000076034137): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (0000000076034137): kobject_uevent_env
> kobject: 'rx-0' (0000000076034137): fill_kobj_path: path =
> '/devices/virtual/net/erspan0/queues/rx-0'
> kobject: 'tx-0' (00000000a2877c40): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (00000000a2877c40): kobject_uevent_env
> kobject: 'tx-0' (00000000a2877c40): fill_kobj_path: path =
> '/devices/virtual/net/erspan0/queues/tx-0'
> kobject: 'sit0' (00000000e3e2a16f): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'sit0' (00000000e3e2a16f): kobject_uevent_env
> kobject: 'sit0' (00000000e3e2a16f): fill_kobj_path: path =
> '/devices/virtual/net/sit0'
> kobject: 'queues' (00000000c87a748d): kobject_add_internal: parent: 'sit0',
> set: '<NULL>'
> kobject: 'queues' (00000000c87a748d): kobject_uevent_env
> kobject: 'queues' (00000000c87a748d): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (0000000013220ea2): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (0000000013220ea2): kobject_uevent_env
> kobject: 'rx-0' (0000000013220ea2): fill_kobj_path: path =
> '/devices/virtual/net/sit0/queues/rx-0'
> kobject: 'tx-0' (000000000f597677): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000000f597677): kobject_uevent_env
> kobject: 'tx-0' (000000000f597677): fill_kobj_path: path =
> '/devices/virtual/net/sit0/queues/tx-0'
> kobject: 'sit0' (00000000c7a47a9c): kobject_cleanup, parent           (null)
> kobject: 'ip6tnl0' (00000000ef426155): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'ip6tnl0' (00000000ef426155): kobject_uevent_env
> kobject: 'sit0' (00000000c7a47a9c): auto cleanup 'remove' event
> kobject: 'ip6tnl0' (00000000ef426155): fill_kobj_path: path =
> '/devices/virtual/net/ip6tnl0'
> kobject: 'sit0' (00000000c7a47a9c): kobject_uevent_env
> kobject: 'queues' (0000000014824614): kobject_add_internal: parent:
> 'ip6tnl0', set: '<NULL>'
> kobject: 'queues' (0000000014824614): kobject_uevent_env
> kobject: 'sit0' (00000000c7a47a9c): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'queues' (0000000014824614): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'sit0' (00000000c7a47a9c): calling ktype release
> kobject: 'rx-0' (0000000087b89223): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'sit0': free name
> kobject: 'rx-0' (0000000087b89223): kobject_uevent_env
> kobject: 'rx-0' (0000000087b89223): fill_kobj_path: path =
> '/devices/virtual/net/ip6tnl0/queues/rx-0'
> kobject: 'tx-0' (000000000bb0a388): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000000bb0a388): kobject_uevent_env
> kobject: 'tx-0' (000000000bb0a388): fill_kobj_path: path =
> '/devices/virtual/net/ip6tnl0/queues/tx-0'
> kobject: 'ip6gre0' (000000006fc72841): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'ip6gre0' (000000006fc72841): kobject_uevent_env
> kobject: 'ip6gre0' (000000006fc72841): fill_kobj_path: path =
> '/devices/virtual/net/ip6gre0'
> kobject: 'queues' (0000000019e0690c): kobject_add_internal: parent:
> 'ip6gre0', set: '<NULL>'
> kobject: 'loop4' (000000001e9bb253): kobject_uevent_env
> kobject: 'loop4' (000000001e9bb253): fill_kobj_path: path =
> '/devices/virtual/block/loop4'
> kobject: 'queues' (0000000019e0690c): kobject_uevent_env
> kobject: 'queues' (0000000019e0690c): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (00000000afeda5c2): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000afeda5c2): kobject_uevent_env
> kobject: 'rx-0' (00000000afeda5c2): fill_kobj_path: path =
> '/devices/virtual/net/ip6gre0/queues/rx-0'
> kobject: 'tx-0' (000000004ea2b5e7): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000004ea2b5e7): kobject_uevent_env
> kobject: 'tx-0' (000000004ea2b5e7): fill_kobj_path: path =
> '/devices/virtual/net/ip6gre0/queues/tx-0'
> kobject: 'ip_vti0' (000000005bc278ba): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'ip_vti0' (000000005bc278ba): kobject_uevent_env
> kobject: 'ip_vti0' (000000005bc278ba): fill_kobj_path: path =
> '/devices/virtual/net/ip_vti0'
> kobject: 'queues' (000000002e225b4e): kobject_add_internal: parent:
> 'ip_vti0', set: '<NULL>'
> kobject: 'queues' (000000002e225b4e): kobject_uevent_env
> kobject: 'queues' (000000002e225b4e): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (000000006e75f4ca): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (000000006e75f4ca): kobject_uevent_env
> kobject: 'rx-0' (000000006e75f4ca): fill_kobj_path: path =
> '/devices/virtual/net/ip_vti0/queues/rx-0'
> kobject: 'tx-0' (0000000039077593): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (0000000039077593): kobject_uevent_env
> kobject: 'tx-0' (0000000039077593): fill_kobj_path: path =
> '/devices/virtual/net/ip_vti0/queues/tx-0'
> kobject: 'rx-0' (000000001a24142c): kobject_cleanup, parent 0000000028636b03
> kobject: 'rx-0' (000000001a24142c): auto cleanup 'remove' event
> kobject: 'rx-0' (000000001a24142c): kobject_uevent_env
> kobject: 'rx-0' (000000001a24142c): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (000000001a24142c): auto cleanup kobject_del
> kobject: 'rx-0' (000000001a24142c): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (0000000092b23e36): kobject_cleanup, parent 0000000028636b03
> kobject: 'tx-0' (0000000092b23e36): auto cleanup 'remove' event
> kobject: 'tx-0' (0000000092b23e36): kobject_uevent_env
> kobject: 'tx-0' (0000000092b23e36): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (0000000092b23e36): auto cleanup kobject_del
> kobject: 'tx-0' (0000000092b23e36): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (0000000028636b03): kobject_cleanup, parent
> (null)
> kobject: 'queues' (0000000028636b03): calling ktype release
> kobject: 'queues' (0000000028636b03): kset_release
> kobject: 'queues': free name
> kobject: 'ip6_vti0' (0000000020ef4527): kobject_uevent_env
> kobject: 'ip6_vti0' (0000000020ef4527): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'syz_tun' (00000000f9c30323): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'syz_tun' (00000000f9c30323): kobject_uevent_env
> kobject: 'syz_tun' (00000000f9c30323): fill_kobj_path: path =
> '/devices/virtual/net/syz_tun'
> kobject: 'queues' (0000000041c26192): kobject_add_internal: parent:
> 'syz_tun', set: '<NULL>'
> kobject: 'queues' (0000000041c26192): kobject_uevent_env
> kobject: 'queues' (0000000041c26192): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (00000000954dd602): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000954dd602): kobject_uevent_env
> kobject: 'rx-0' (00000000954dd602): fill_kobj_path: path =
> '/devices/virtual/net/syz_tun/queues/rx-0'
> kobject: 'tx-0' (000000005f836e67): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000005f836e67): kobject_uevent_env
> kobject: 'tx-0' (000000005f836e67): fill_kobj_path: path =
> '/devices/virtual/net/syz_tun/queues/tx-0'
> kobject: 'ip6_vti0' (0000000087375d88): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'ip6_vti0' (0000000087375d88): kobject_uevent_env
> kobject: 'ip6_vti0' (0000000087375d88): fill_kobj_path: path =
> '/devices/virtual/net/ip6_vti0'
> kobject: 'queues' (000000009eac168b): kobject_add_internal: parent:
> 'ip6_vti0', set: '<NULL>'
> kobject: 'queues' (000000009eac168b): kobject_uevent_env
> kobject: 'queues' (000000009eac168b): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (0000000028433a9e): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (0000000028433a9e): kobject_uevent_env
> kobject: 'rx-0' (0000000028433a9e): fill_kobj_path: path =
> '/devices/virtual/net/ip6_vti0/queues/rx-0'
> kobject: 'tx-0' (00000000098cde74): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (00000000098cde74): kobject_uevent_env
> kobject: 'tx-0' (00000000098cde74): fill_kobj_path: path =
> '/devices/virtual/net/ip6_vti0/queues/tx-0'
> kobject: 'ip6_vti0' (0000000020ef4527): kobject_cleanup, parent
> (null)
> kobject: 'sit0' (0000000039b70061): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'sit0' (0000000039b70061): kobject_uevent_env
> kobject: 'ip6_vti0' (0000000020ef4527): auto cleanup 'remove' event
> kobject: 'sit0' (0000000039b70061): fill_kobj_path: path =
> '/devices/virtual/net/sit0'
> kobject: 'ip6_vti0' (0000000020ef4527): kobject_uevent_env
> kobject: 'queues' (00000000018e5271): kobject_add_internal: parent: 'sit0',
> set: '<NULL>'
> kobject: 'queues' (00000000018e5271): kobject_uevent_env
> kobject: 'ip6_vti0' (0000000020ef4527): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'queues' (00000000018e5271): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'ip6_vti0' (0000000020ef4527): calling ktype release
> kobject: 'rx-0' (0000000021412345): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'ip6_vti0': free name
> kobject: 'rx-0' (0000000021412345): kobject_uevent_env
> kobject: 'rx-0' (0000000021412345): fill_kobj_path: path =
> '/devices/virtual/net/sit0/queues/rx-0'
> kobject: 'tx-0' (00000000e9b27282): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (00000000e9b27282): kobject_uevent_env
> kobject: 'tx-0' (00000000e9b27282): fill_kobj_path: path =
> '/devices/virtual/net/sit0/queues/tx-0'
> kobject: 'rx-0' (000000005aa24b22): kobject_cleanup, parent 000000004cd2ac60
> kobject: 'rx-0' (000000005aa24b22): auto cleanup 'remove' event
> kobject: 'rx-0' (000000005aa24b22): kobject_uevent_env
> kobject: 'rx-0' (000000005aa24b22): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (000000005aa24b22): auto cleanup kobject_del
> kobject: 'rx-0' (000000005aa24b22): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000fc29b4de): kobject_cleanup, parent 000000004cd2ac60
> kobject: 'tx-0' (00000000fc29b4de): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000fc29b4de): kobject_uevent_env
> kobject: 'tx-0' (00000000fc29b4de): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000fc29b4de): auto cleanup kobject_del
> kobject: 'tx-0' (00000000fc29b4de): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (000000004cd2ac60): kobject_cleanup, parent
> (null)
> kobject: 'queues' (000000004cd2ac60): calling ktype release
> kobject: 'queues' (000000004cd2ac60): kset_release
> kobject: 'queues': free name
> kobject: 'ip_vti0' (00000000617c37c5): kobject_uevent_env
> kobject: 'ip_vti0' (00000000617c37c5): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'ip6tnl0' (00000000b70e37b0): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'ip6tnl0' (00000000b70e37b0): kobject_uevent_env
> kobject: 'ip6tnl0' (00000000b70e37b0): fill_kobj_path: path =
> '/devices/virtual/net/ip6tnl0'
> kobject: 'queues' (0000000006a6c48d): kobject_add_internal: parent:
> 'ip6tnl0', set: '<NULL>'
> kobject: 'queues' (0000000006a6c48d): kobject_uevent_env
> kobject: 'queues' (0000000006a6c48d): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (000000000af89fbd): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (000000000af89fbd): kobject_uevent_env
> kobject: 'rx-0' (000000000af89fbd): fill_kobj_path: path =
> '/devices/virtual/net/ip6tnl0/queues/rx-0'
> kobject: 'tx-0' (000000001030a511): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000001030a511): kobject_uevent_env
> kobject: 'tx-0' (000000001030a511): fill_kobj_path: path =
> '/devices/virtual/net/ip6tnl0/queues/tx-0'
> kobject: 'ip6gre0' (00000000279f7ced): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'ip6gre0' (00000000279f7ced): kobject_uevent_env
> kobject: 'ip6gre0' (00000000279f7ced): fill_kobj_path: path =
> '/devices/virtual/net/ip6gre0'
> kobject: 'queues' (00000000445fd090): kobject_add_internal: parent:
> 'ip6gre0', set: '<NULL>'
> kobject: 'queues' (00000000445fd090): kobject_uevent_env
> kobject: 'queues' (00000000445fd090): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (000000001846accf): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (000000001846accf): kobject_uevent_env
> kobject: 'rx-0' (000000001846accf): fill_kobj_path: path =
> '/devices/virtual/net/ip6gre0/queues/rx-0'
> kobject: 'tx-0' (0000000089bc5a27): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (0000000089bc5a27): kobject_uevent_env
> kobject: 'tx-0' (0000000089bc5a27): fill_kobj_path: path =
> '/devices/virtual/net/ip6gre0/queues/tx-0'
> kobject: 'syz_tun' (00000000e07d3df0): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'ip_vti0' (00000000617c37c5): kobject_cleanup, parent
> (null)
> kobject: 'syz_tun' (00000000e07d3df0): kobject_uevent_env
> kobject: 'ip_vti0' (00000000617c37c5): auto cleanup 'remove' event
> kobject: 'syz_tun' (00000000e07d3df0): fill_kobj_path: path =
> '/devices/virtual/net/syz_tun'
> kobject: 'ip_vti0' (00000000617c37c5): kobject_uevent_env
> kobject: 'ip_vti0' (00000000617c37c5): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'queues' (00000000e8902e54): kobject_add_internal: parent:
> 'syz_tun', set: '<NULL>'
> kobject: 'ip_vti0' (00000000617c37c5): calling ktype release
> kobject: 'queues' (00000000e8902e54): kobject_uevent_env
> kobject: 'queues' (00000000e8902e54): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'ip_vti0': free name
> kobject: 'rx-0' (00000000af14a71a): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (00000000af14a71a): kobject_uevent_env
> kobject: 'rx-0' (00000000af14a71a): fill_kobj_path: path =
> '/devices/virtual/net/syz_tun/queues/rx-0'
> kobject: 'tx-0' (000000006a8e698e): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000006a8e698e): kobject_uevent_env
> kobject: 'tx-0' (000000006a8e698e): fill_kobj_path: path =
> '/devices/virtual/net/syz_tun/queues/tx-0'
> kobject: 'rx-0' (000000005f5c75e6): kobject_cleanup, parent 000000004e456e48
> kobject: 'rx-0' (000000005f5c75e6): auto cleanup 'remove' event
> kobject: 'rx-0' (000000005f5c75e6): kobject_uevent_env
> kobject: 'rx-0' (000000005f5c75e6): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (000000005f5c75e6): auto cleanup kobject_del
> kobject: 'rx-0' (000000005f5c75e6): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000a98a4e66): kobject_cleanup, parent 000000004e456e48
> kobject: 'tx-0' (00000000a98a4e66): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000a98a4e66): kobject_uevent_env
> kobject: 'tx-0' (00000000a98a4e66): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000a98a4e66): auto cleanup kobject_del
> kobject: 'tx-0' (00000000a98a4e66): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (000000004e456e48): kobject_cleanup, parent
> (null)
> kobject: 'queues' (000000004e456e48): calling ktype release
> kobject: 'queues' (000000004e456e48): kset_release
> kobject: 'queues': free name
> kobject: 'erspan0' (00000000cf5ce776): kobject_uevent_env
> kobject: 'erspan0' (00000000cf5ce776): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'erspan0' (00000000cf5ce776): kobject_cleanup, parent
> (null)
> kobject: 'erspan0' (00000000cf5ce776): auto cleanup 'remove' event
> kobject: 'erspan0' (00000000cf5ce776): kobject_uevent_env
> kobject: 'erspan0' (00000000cf5ce776): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'erspan0' (00000000cf5ce776): calling ktype release
> kobject: 'erspan0': free name
> kobject: 'rx-0' (000000000ad8ad2c): kobject_cleanup, parent 000000005cdf48e5
> kobject: 'rx-0' (000000000ad8ad2c): auto cleanup 'remove' event
> kobject: 'rx-0' (000000000ad8ad2c): kobject_uevent_env
> kobject: 'rx-0' (000000000ad8ad2c): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (000000000ad8ad2c): auto cleanup kobject_del
> kobject: 'rx-0' (000000000ad8ad2c): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000c903a801): kobject_cleanup, parent 000000005cdf48e5
> kobject: 'tx-0' (00000000c903a801): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000c903a801): kobject_uevent_env
> kobject: 'tx-0' (00000000c903a801): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000c903a801): auto cleanup kobject_del
> kobject: 'tx-0' (00000000c903a801): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (000000005cdf48e5): kobject_cleanup, parent
> (null)
> kobject: 'queues' (000000005cdf48e5): calling ktype release
> kobject: 'queues' (000000005cdf48e5): kset_release
> kobject: 'queues': free name
> kobject: 'gretap0' (000000004d423aac): kobject_uevent_env
> kobject: 'gretap0' (000000004d423aac): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'gretap0' (000000004d423aac): kobject_cleanup, parent
> (null)
> kobject: 'gretap0' (000000004d423aac): auto cleanup 'remove' event
> kobject: 'gretap0' (000000004d423aac): kobject_uevent_env
> kobject: 'gretap0' (000000004d423aac): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'gretap0' (000000004d423aac): calling ktype release
> kobject: 'gretap0': free name
> kobject: 'rx-0' (00000000a4b747d7): kobject_cleanup, parent 000000003ccae0b4
> kobject: 'rx-0' (00000000a4b747d7): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000a4b747d7): kobject_uevent_env
> kobject: 'rx-0' (00000000a4b747d7): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000a4b747d7): auto cleanup kobject_del
> kobject: 'rx-0' (00000000a4b747d7): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000e6a79f88): kobject_cleanup, parent 000000003ccae0b4
> kobject: 'tx-0' (00000000e6a79f88): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000e6a79f88): kobject_uevent_env
> kobject: 'tx-0' (00000000e6a79f88): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000e6a79f88): auto cleanup kobject_del
> kobject: 'tx-0' (00000000e6a79f88): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (000000003ccae0b4): kobject_cleanup, parent
> (null)
> kobject: 'queues' (000000003ccae0b4): calling ktype release
> kobject: 'queues' (000000003ccae0b4): kset_release
> kobject: 'queues': free name
> kobject: 'gre0' (0000000077fb13a5): kobject_uevent_env
> kobject: 'gre0' (0000000077fb13a5): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'ip6gretap0' (000000007281cf91): kobject_add_internal: parent:
> 'net', set: 'devices'
> kobject: 'ip6gretap0' (000000007281cf91): kobject_uevent_env
> kobject: 'ip6gretap0' (000000007281cf91): fill_kobj_path: path =
> '/devices/virtual/net/ip6gretap0'
> kobject: 'queues' (00000000c5800ac6): kobject_add_internal: parent:
> 'ip6gretap0', set: '<NULL>'
> kobject: 'queues' (00000000c5800ac6): kobject_uevent_env
> kobject: 'queues' (00000000c5800ac6): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (000000002b4502a3): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (000000002b4502a3): kobject_uevent_env
> kobject: 'rx-0' (000000002b4502a3): fill_kobj_path: path =
> '/devices/virtual/net/ip6gretap0/queues/rx-0'
> kobject: 'tx-0' (000000007dec8283): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000007dec8283): kobject_uevent_env
> kobject: 'tx-0' (000000007dec8283): fill_kobj_path: path =
> '/devices/virtual/net/ip6gretap0/queues/tx-0'
> kobject: 'gre0' (0000000077fb13a5): kobject_cleanup, parent           (null)
> kobject: 'gre0' (0000000077fb13a5): auto cleanup 'remove' event
> kobject: 'gre0' (0000000077fb13a5): kobject_uevent_env
> kobject: 'gre0' (0000000077fb13a5): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'gre0' (0000000077fb13a5): calling ktype release
> kobject: 'gre0': free name
> kobject: 'rx-0' (00000000c13182aa): kobject_cleanup, parent 000000000b2c1ed3
> kobject: 'rx-0' (00000000c13182aa): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000c13182aa): kobject_uevent_env
> kobject: 'rx-0' (00000000c13182aa): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000c13182aa): auto cleanup kobject_del
> kobject: 'rx-0' (00000000c13182aa): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000c70edf3f): kobject_cleanup, parent 000000000b2c1ed3
> kobject: 'tx-0' (00000000c70edf3f): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000c70edf3f): kobject_uevent_env
> kobject: 'tx-0' (00000000c70edf3f): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000c70edf3f): auto cleanup kobject_del
> kobject: 'tx-0' (00000000c70edf3f): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (000000000b2c1ed3): kobject_cleanup, parent
> (null)
> kobject: 'queues' (000000000b2c1ed3): calling ktype release
> kobject: 'queues' (000000000b2c1ed3): kset_release
> kobject: 'queues': free name
> kobject: 'tunl0' (00000000a752cb36): kobject_uevent_env
> kobject: 'tunl0' (00000000a752cb36): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'bridge0' (00000000ec037900): kobject_add_internal: parent: 'net',
> set: 'devices'
> kobject: 'bridge0' (00000000ec037900): kobject_uevent_env
> kobject: 'bridge0' (00000000ec037900): fill_kobj_path: path =
> '/devices/virtual/net/bridge0'
> kobject: 'queues' (00000000552da2fa): kobject_add_internal: parent:
> 'bridge0', set: '<NULL>'
> kobject: 'queues' (00000000552da2fa): kobject_uevent_env
> kobject: 'queues' (00000000552da2fa): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'rx-0' (0000000078141758): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'rx-0' (0000000078141758): kobject_uevent_env
> kobject: 'rx-0' (0000000078141758): fill_kobj_path: path =
> '/devices/virtual/net/bridge0/queues/rx-0'
> kobject: 'tx-0' (000000005e80af55): kobject_add_internal: parent: 'queues',
> set: 'queues'
> kobject: 'tx-0' (000000005e80af55): kobject_uevent_env
> kobject: 'tx-0' (000000005e80af55): fill_kobj_path: path =
> '/devices/virtual/net/bridge0/queues/tx-0'
> kobject: 'brif' (00000000c8bf76bf): kobject_add_internal: parent: 'bridge0',
> set: '<NULL>'
> kobject: 'tunl0' (00000000a752cb36): kobject_cleanup, parent
> (null)
> kobject: 'tunl0' (00000000a752cb36): auto cleanup 'remove' event
> kobject: 'tunl0' (00000000a752cb36): kobject_uevent_env
> kobject: 'tunl0' (00000000a752cb36): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tunl0' (00000000a752cb36): calling ktype release
> kobject: 'tunl0': free name
> device bridge_slave_1 left promiscuous mode
> bridge0: port 2(bridge_slave_1) entered disabled state
> kobject: 'brport' (000000005031346d): kobject_uevent_env
> kobject: 'brport' (000000005031346d): kobject_uevent_env: filter function
> caused the event to drop!
> device bridge_slave_0 left promiscuous mode
> bridge0: port 1(bridge_slave_0) entered disabled state
> kobject: 'brport' (000000005031346d): kobject_cleanup, parent
> (null)
> kobject: 'brport' (000000005031346d): calling ktype release
> kobject: 'brport': free name
> kobject: 'brport' (00000000b1ad1e68): kobject_uevent_env
> kobject: 'brport' (00000000b1ad1e68): kobject_uevent_env: filter function
> caused the event to drop!
> kobject: 'brif' (000000006af76442): kobject_cleanup, parent 0000000028e7ba42
> kobject: 'brif' (000000006af76442): auto cleanup kobject_del
> kobject: 'brif' (000000006af76442): calling ktype release
> kobject: (000000006af76442): dynamic_kobj_release
> kobject: 'brif': free name
> kobject: 'brport' (00000000b1ad1e68): kobject_cleanup, parent
> (null)
> kobject: 'brport' (00000000b1ad1e68): calling ktype release
> kobject: 'brport': free name
> team0 (unregistering): Port device team_slave_1 removed
> kobject: 'rx-0' (000000007779f1a6): kobject_cleanup, parent 000000004b650d31
> kobject: 'rx-0' (000000007779f1a6): auto cleanup 'remove' event
> kobject: 'rx-0' (000000007779f1a6): kobject_uevent_env
> kobject: 'rx-0' (000000007779f1a6): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (000000007779f1a6): auto cleanup kobject_del
> kobject: 'rx-0' (000000007779f1a6): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (0000000088012822): kobject_cleanup, parent 000000004b650d31
> kobject: 'tx-0' (0000000088012822): auto cleanup 'remove' event
> kobject: 'tx-0' (0000000088012822): kobject_uevent_env
> kobject: 'tx-0' (0000000088012822): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (0000000088012822): auto cleanup kobject_del
> kobject: 'tx-0' (0000000088012822): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (000000004b650d31): kobject_cleanup, parent
> (null)
> kobject: 'queues' (000000004b650d31): calling ktype release
> kobject: 'queues' (000000004b650d31): kset_release
> kobject: 'queues': free name
> kobject: 'team_slave_1' (0000000034c19cd0): kobject_uevent_env
> kobject: 'team_slave_1' (0000000034c19cd0): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'rx-0' (00000000d720100c): kobject_cleanup, parent 000000004ada38be
> kobject: 'rx-0' (00000000d720100c): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000d720100c): kobject_uevent_env
> kobject: 'rx-0' (00000000d720100c): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000d720100c): auto cleanup kobject_del
> kobject: 'rx-0' (00000000d720100c): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (000000005a4e65c3): kobject_cleanup, parent 000000004ada38be
> kobject: 'tx-0' (000000005a4e65c3): auto cleanup 'remove' event
> kobject: 'tx-0' (000000005a4e65c3): kobject_uevent_env
> kobject: 'tx-0' (000000005a4e65c3): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (000000005a4e65c3): auto cleanup kobject_del
> kobject: 'tx-0' (000000005a4e65c3): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (000000004ada38be): kobject_cleanup, parent
> (null)
> kobject: 'queues' (000000004ada38be): calling ktype release
> kobject: 'queues' (000000004ada38be): kset_release
> kobject: 'queues': free name
> kobject: 'veth1_to_team' (00000000635494af): kobject_uevent_env
> kobject: 'veth1_to_team' (00000000635494af): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> team0 (unregistering): Port device team_slave_0 removed
> kobject: 'rx-0' (0000000026c2e8e9): kobject_cleanup, parent 00000000328f51f1
> kobject: 'rx-0' (0000000026c2e8e9): auto cleanup 'remove' event
> kobject: 'rx-0' (0000000026c2e8e9): kobject_uevent_env
> kobject: 'rx-0' (0000000026c2e8e9): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (0000000026c2e8e9): auto cleanup kobject_del
> kobject: 'rx-0' (0000000026c2e8e9): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000d45b45c1): kobject_cleanup, parent 00000000328f51f1
> kobject: 'tx-0' (00000000d45b45c1): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000d45b45c1): kobject_uevent_env
> kobject: 'tx-0' (00000000d45b45c1): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'tx-0' (00000000d45b45c1): auto cleanup kobject_del
> kobject: 'tx-0' (00000000d45b45c1): calling ktype release
> kobject: 'tx-0': free name
> kobject: 'queues' (00000000328f51f1): kobject_cleanup, parent
> (null)
> kobject: 'queues' (00000000328f51f1): calling ktype release
> kobject: 'queues' (00000000328f51f1): kset_release
> kobject: 'queues': free name
> kobject: 'team_slave_0' (000000007ce7cb14): kobject_uevent_env
> kobject: 'team_slave_0' (000000007ce7cb14): kobject_uevent_env:
> uevent_suppress caused the event to drop!
> kobject: 'rx-0' (00000000cb91554e): kobject_cleanup, parent 000000009bb1eee4
> kobject: 'rx-0' (00000000cb91554e): auto cleanup 'remove' event
> kobject: 'rx-0' (00000000cb91554e): kobject_uevent_env
> kobject: 'rx-0' (00000000cb91554e): kobject_uevent_env: uevent_suppress
> caused the event to drop!
> kobject: 'rx-0' (00000000cb91554e): auto cleanup kobject_del
> kobject: 'rx-0' (00000000cb91554e): calling ktype release
> kobject: 'rx-0': free name
> kobject: 'tx-0' (00000000f68b70cb): kobject_cleanup, parent 000000009bb1eee4
> kobject: 'tx-0' (00000000f68b70cb): auto cleanup 'remove' event
> kobject: 'tx-0' (00000000f68b70cb): kobject_u
>
> ---
> This bug is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
>
> syzbot will keep track of this bug report. See:
> https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with
> syzbot.
>
> --
> You received this message because you are subscribed to the Google Groups
> "syzkaller-bugs" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to syzkaller-bugs+unsubscribe@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/syzkaller-bugs/0000000000007523a60576e80a47%40google.com.
> For more options, visit https://groups.google.com/d/optout.

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2018-09-28  6:06 ` Dmitry Vyukov
@ 2018-09-28  7:00   ` Peter Zijlstra
  2018-09-28  7:56     ` Dmitry Vyukov
  0 siblings, 1 reply; 19+ messages in thread
From: Peter Zijlstra @ 2018-09-28  7:00 UTC (permalink / raw)
  To: Dmitry Vyukov
  Cc: syzbot, Ingo Molnar, Will Deacon, LKML, syzkaller-bugs, Thomas Gleixner

On Fri, Sep 28, 2018 at 08:06:26AM +0200, Dmitry Vyukov wrote:
> On Fri, Sep 28, 2018 at 7:51 AM, syzbot
> <syzbot+aaa6fa4949cc5d9b7b25@syzkaller.appspotmail.com> wrote:
> > Hello,
> >
> > syzbot found the following crash on:
> >
> > HEAD commit:    c307aaf3eb47 Merge tag 'iommu-fixes-v4.19-rc5' of git://gi..
> > git tree:       upstream
> > console output: https://syzkaller.appspot.com/x/log.txt?x=13810df1400000
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=dfb440e26f0a6f6f
> > dashboard link: https://syzkaller.appspot.com/bug?extid=aaa6fa4949cc5d9b7b25
> > compiler:       gcc (GCC) 8.0.1 20180413 (experimental)
> >
> > Unfortunately, I don't have any reproducer for this crash yet.
> >
> > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> > Reported-by: syzbot+aaa6fa4949cc5d9b7b25@syzkaller.appspotmail.com
> 
> +LOCKDEP maintainers,
> 
> What does this BUG mean? And how should it be fixed?
> 
> Thanks
> 
> > BUG: MAX_LOCKDEP_CHAINS too low!

Is the his result of endlessly loading and unloading modules?

In which case, the fix is: don't do that then.



^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2018-09-28  7:00   ` Peter Zijlstra
@ 2018-09-28  7:56     ` Dmitry Vyukov
  2020-01-09 10:59       ` Dmitry Vyukov
  0 siblings, 1 reply; 19+ messages in thread
From: Dmitry Vyukov @ 2018-09-28  7:56 UTC (permalink / raw)
  To: Peter Zijlstra
  Cc: syzbot, Ingo Molnar, Will Deacon, LKML, syzkaller-bugs, Thomas Gleixner

On Fri, Sep 28, 2018 at 9:00 AM, Peter Zijlstra <peterz@infradead.org> wrote:
>> > Hello,
>> >
>> > syzbot found the following crash on:
>> >
>> > HEAD commit:    c307aaf3eb47 Merge tag 'iommu-fixes-v4.19-rc5' of git://gi..
>> > git tree:       upstream
>> > console output: https://syzkaller.appspot.com/x/log.txt?x=13810df1400000
>> > kernel config:  https://syzkaller.appspot.com/x/.config?x=dfb440e26f0a6f6f
>> > dashboard link: https://syzkaller.appspot.com/bug?extid=aaa6fa4949cc5d9b7b25
>> > compiler:       gcc (GCC) 8.0.1 20180413 (experimental)
>> >
>> > Unfortunately, I don't have any reproducer for this crash yet.
>> >
>> > IMPORTANT: if you fix the bug, please add the following tag to the commit:
>> > Reported-by: syzbot+aaa6fa4949cc5d9b7b25@syzkaller.appspotmail.com
>>
>> +LOCKDEP maintainers,
>>
>> What does this BUG mean? And how should it be fixed?
>>
>> Thanks
>>
>> > BUG: MAX_LOCKDEP_CHAINS too low!
>
> Is the his result of endlessly loading and unloading modules?
>
> In which case, the fix is: don't do that then.

No modules involved, we don't have any modules in the image. Must be
something else.
Perhaps syzkaller just produced a workload so diverse that nobody ever produced.

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2018-09-28  5:51 BUG: MAX_LOCKDEP_CHAINS too low! syzbot
  2018-09-28  6:06 ` Dmitry Vyukov
@ 2019-10-20 23:33 ` syzbot
  2020-04-15 18:52   ` Cong Wang
  1 sibling, 1 reply; 19+ messages in thread
From: syzbot @ 2019-10-20 23:33 UTC (permalink / raw)
  To: dvyukov, linux-kernel, mingo, peterz, syzkaller-bugs, tglx, will.deacon

syzbot has found a reproducer for the following crash on:

HEAD commit:    4fe34d61 Merge branch 'x86-urgent-for-linus' of git://git...
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1176cd40e00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=e0ac4d9b35046343
dashboard link: https://syzkaller.appspot.com/bug?extid=aaa6fa4949cc5d9b7b25
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14150b40e00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=12e122ff600000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+aaa6fa4949cc5d9b7b25@syzkaller.appspotmail.com

BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 11772 Comm: kworker/u5:486 Not tainted 5.4.0-rc3+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS  
Google 01/01/2011
Workqueue: hci1600 hci_power_on
Call Trace:
  __dump_stack lib/dump_stack.c:77 [inline]
  dump_stack+0x172/0x1f0 lib/dump_stack.c:113
  add_chain_cache kernel/locking/lockdep.c:2816 [inline]
  lookup_chain_cache_add kernel/locking/lockdep.c:2915 [inline]
  validate_chain kernel/locking/lockdep.c:2936 [inline]
  __lock_acquire.cold+0x325/0x385 kernel/locking/lockdep.c:3955
  lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4487
  process_one_work+0x91c/0x1740 kernel/workqueue.c:2245
  worker_thread+0x98/0xe40 kernel/workqueue.c:2415
  kthread+0x361/0x430 kernel/kthread.c:255
  ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352


^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2018-09-28  7:56     ` Dmitry Vyukov
@ 2020-01-09 10:59       ` Dmitry Vyukov
  2020-01-13 11:11         ` Dmitry Vyukov
  2020-01-14  8:43         ` Peter Zijlstra
  0 siblings, 2 replies; 19+ messages in thread
From: Dmitry Vyukov @ 2020-01-09 10:59 UTC (permalink / raw)
  To: Peter Zijlstra
  Cc: syzbot, Ingo Molnar, Will Deacon, LKML, syzkaller-bugs, Thomas Gleixner

On Fri, Sep 28, 2018 at 9:56 AM Dmitry Vyukov <dvyukov@google.com> wrote:
> >> > Hello,
> >> >
> >> > syzbot found the following crash on:
> >> >
> >> > HEAD commit:    c307aaf3eb47 Merge tag 'iommu-fixes-v4.19-rc5' of git://gi..
> >> > git tree:       upstream
> >> > console output: https://syzkaller.appspot.com/x/log.txt?x=13810df1400000
> >> > kernel config:  https://syzkaller.appspot.com/x/.config?x=dfb440e26f0a6f6f
> >> > dashboard link: https://syzkaller.appspot.com/bug?extid=aaa6fa4949cc5d9b7b25
> >> > compiler:       gcc (GCC) 8.0.1 20180413 (experimental)
> >> >
> >> > Unfortunately, I don't have any reproducer for this crash yet.
> >> >
> >> > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> >> > Reported-by: syzbot+aaa6fa4949cc5d9b7b25@syzkaller.appspotmail.com
> >>
> >> +LOCKDEP maintainers,
> >>
> >> What does this BUG mean? And how should it be fixed?
> >>
> >> Thanks
> >>
> >> > BUG: MAX_LOCKDEP_CHAINS too low!
> >
> > Is the his result of endlessly loading and unloading modules?
> >
> > In which case, the fix is: don't do that then.
>
> No modules involved, we don't have any modules in the image. Must be
> something else.
> Perhaps syzkaller just produced a workload so diverse that nobody ever produced.

Peter, Ingo,

This really plagues syzbot testing for more than a year now. These four:

BUG: MAX_LOCKDEP_KEYS too low!
https://syzkaller.appspot.com/bug?id=8a18efe79140782a88dcd098808d6ab20ed740cc

BUG: MAX_LOCKDEP_ENTRIES too low!
https://syzkaller.appspot.com/bug?id=3d97ba93fb3566000c1c59691ea427370d33ea1b

BUG: MAX_LOCKDEP_CHAINS too low!
https://syzkaller.appspot.com/bug?id=bf037f4725d40a8d350b2b1b3b3e0947c6efae85

BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
https://syzkaller.appspot.com/bug?id=381cb436fe60dc03d7fd2a092b46d7f09542a72a


Now running testing I only see a stream of different lockdep bugs mostly:

2020/01/09 11:41:51 vm-13: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
2020/01/09 11:43:09 vm-9: crash: INFO: task hung in register_netdevice_notifier
2020/01/09 11:44:00 vm-26: crash: no output from test machine
2020/01/09 11:44:11 vm-8: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
2020/01/09 11:44:28 vm-19: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
2020/01/09 11:46:20 vm-27: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
2020/01/09 11:46:41 vm-15: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
2020/01/09 11:46:45 vm-28: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
2020/01/09 11:46:47 vm-29: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
2020/01/09 11:46:49 vm-22: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
2020/01/09 11:46:50 vm-10: crash: no output from test machine
2020/01/09 11:46:52 vm-18: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
2020/01/09 11:46:53 vm-23: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
2020/01/09 11:47:17 vm-20: crash: lost connection to test machine
2020/01/09 11:47:48 vm-5: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
2020/01/09 11:47:56 vm-14: crash: WARNING in restore_regulatory_settings
2020/01/09 11:48:19 vm-2: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
2020/01/09 11:48:21 vm-7: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
2020/01/09 11:48:22 vm-3: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
2020/01/09 11:48:40 vm-25: crash: BUG: MAX_LOCKDEP_CHAINS too low!

Should we just bump the limits there?

Or are there some ID leaks in lockdep? syzbot has a bunch of very
simple reproducers for these bugs, so not really a maximally diverse
load. And I think I saw these bugs massively when testing just a
single subsystem too, e.g. netfilter.

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2020-01-09 10:59       ` Dmitry Vyukov
@ 2020-01-13 11:11         ` Dmitry Vyukov
  2020-01-15 21:53           ` Cong Wang
  2020-01-14  8:43         ` Peter Zijlstra
  1 sibling, 1 reply; 19+ messages in thread
From: Dmitry Vyukov @ 2020-01-13 11:11 UTC (permalink / raw)
  To: Peter Zijlstra, Cong Wang, ap420073
  Cc: syzbot, Ingo Molnar, Will Deacon, LKML, syzkaller-bugs, Thomas Gleixner

On Thu, Jan 9, 2020 at 11:59 AM Dmitry Vyukov <dvyukov@google.com> wrote:
>
> On Fri, Sep 28, 2018 at 9:56 AM Dmitry Vyukov <dvyukov@google.com> wrote:
> > >> > Hello,
> > >> >
> > >> > syzbot found the following crash on:
> > >> >
> > >> > HEAD commit:    c307aaf3eb47 Merge tag 'iommu-fixes-v4.19-rc5' of git://gi..
> > >> > git tree:       upstream
> > >> > console output: https://syzkaller.appspot.com/x/log.txt?x=13810df1400000
> > >> > kernel config:  https://syzkaller.appspot.com/x/.config?x=dfb440e26f0a6f6f
> > >> > dashboard link: https://syzkaller.appspot.com/bug?extid=aaa6fa4949cc5d9b7b25
> > >> > compiler:       gcc (GCC) 8.0.1 20180413 (experimental)
> > >> >
> > >> > Unfortunately, I don't have any reproducer for this crash yet.
> > >> >
> > >> > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> > >> > Reported-by: syzbot+aaa6fa4949cc5d9b7b25@syzkaller.appspotmail.com
> > >>
> > >> +LOCKDEP maintainers,
> > >>
> > >> What does this BUG mean? And how should it be fixed?
> > >>
> > >> Thanks
> > >>
> > >> > BUG: MAX_LOCKDEP_CHAINS too low!
> > >
> > > Is the his result of endlessly loading and unloading modules?
> > >
> > > In which case, the fix is: don't do that then.
> >
> > No modules involved, we don't have any modules in the image. Must be
> > something else.
> > Perhaps syzkaller just produced a workload so diverse that nobody ever produced.
>
> Peter, Ingo,
>
> This really plagues syzbot testing for more than a year now. These four:
>
> BUG: MAX_LOCKDEP_KEYS too low!
> https://syzkaller.appspot.com/bug?id=8a18efe79140782a88dcd098808d6ab20ed740cc
>
> BUG: MAX_LOCKDEP_ENTRIES too low!
> https://syzkaller.appspot.com/bug?id=3d97ba93fb3566000c1c59691ea427370d33ea1b
>
> BUG: MAX_LOCKDEP_CHAINS too low!
> https://syzkaller.appspot.com/bug?id=bf037f4725d40a8d350b2b1b3b3e0947c6efae85
>
> BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
> https://syzkaller.appspot.com/bug?id=381cb436fe60dc03d7fd2a092b46d7f09542a72a
>
>
> Now running testing I only see a stream of different lockdep bugs mostly:
>
> 2020/01/09 11:41:51 vm-13: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
> 2020/01/09 11:43:09 vm-9: crash: INFO: task hung in register_netdevice_notifier
> 2020/01/09 11:44:00 vm-26: crash: no output from test machine
> 2020/01/09 11:44:11 vm-8: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
> 2020/01/09 11:44:28 vm-19: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
> 2020/01/09 11:46:20 vm-27: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
> 2020/01/09 11:46:41 vm-15: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
> 2020/01/09 11:46:45 vm-28: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
> 2020/01/09 11:46:47 vm-29: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
> 2020/01/09 11:46:49 vm-22: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
> 2020/01/09 11:46:50 vm-10: crash: no output from test machine
> 2020/01/09 11:46:52 vm-18: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
> 2020/01/09 11:46:53 vm-23: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
> 2020/01/09 11:47:17 vm-20: crash: lost connection to test machine
> 2020/01/09 11:47:48 vm-5: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
> 2020/01/09 11:47:56 vm-14: crash: WARNING in restore_regulatory_settings
> 2020/01/09 11:48:19 vm-2: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
> 2020/01/09 11:48:21 vm-7: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
> 2020/01/09 11:48:22 vm-3: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
> 2020/01/09 11:48:40 vm-25: crash: BUG: MAX_LOCKDEP_CHAINS too low!
>
> Should we just bump the limits there?
>
> Or are there some ID leaks in lockdep? syzbot has a bunch of very
> simple reproducers for these bugs, so not really a maximally diverse
> load. And I think I saw these bugs massively when testing just a
> single subsystem too, e.g. netfilter.

+Taehee, Cong,

In the other thread Taehee mentioned the creation of dynamic keys for
net devices that was added recently and that they are subject to some
limits.
syzkaller creates lots of net devices for isolation (several dozens
per test process, but then these can be created and destroyed
periodically). I wonder if it's the root cause of the lockdep limits
problems?

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2020-01-09 10:59       ` Dmitry Vyukov
  2020-01-13 11:11         ` Dmitry Vyukov
@ 2020-01-14  8:43         ` Peter Zijlstra
  2020-01-14 10:18           ` Dmitry Vyukov
  1 sibling, 1 reply; 19+ messages in thread
From: Peter Zijlstra @ 2020-01-14  8:43 UTC (permalink / raw)
  To: Dmitry Vyukov
  Cc: syzbot, Ingo Molnar, Will Deacon, LKML, syzkaller-bugs, Thomas Gleixner

On Thu, Jan 09, 2020 at 11:59:25AM +0100, Dmitry Vyukov wrote:

> Or are there some ID leaks in lockdep? syzbot has a bunch of very
> simple reproducers for these bugs, so not really a maximally diverse
> load. And I think I saw these bugs massively when testing just a
> single subsystem too, e.g. netfilter.

Can you share me one of the simple ones? A .c files I can run on my
regular test box that should make it go *splat* ?

Often in the past hitting these limits was the result of some
particularly poor annotation.

For instance, locks in per-cpu data used to trigger this, since
static locks don't need explicit {mutex,spin_lock}_init() calls and
instead use their (static) address. This worked fine for global state,
but per-cpu is an exception, there it causes a nr_cpus explosion in
lockdep state because you get nr_cpus different addresses.

Now, we fixed that particular issue:

  383776fa7527 ("locking/lockdep: Handle statically initialized PER_CPU locks properly")

but maybe there's something else going on.

Just blindly bumping the number without analysis of what exactly is
happening is never a good idea.

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2020-01-14  8:43         ` Peter Zijlstra
@ 2020-01-14 10:18           ` Dmitry Vyukov
  0 siblings, 0 replies; 19+ messages in thread
From: Dmitry Vyukov @ 2020-01-14 10:18 UTC (permalink / raw)
  To: Peter Zijlstra
  Cc: syzbot, Ingo Molnar, Will Deacon, LKML, syzkaller-bugs, Thomas Gleixner

On Tue, Jan 14, 2020 at 9:43 AM Peter Zijlstra <peterz@infradead.org> wrote:
>
> On Thu, Jan 09, 2020 at 11:59:25AM +0100, Dmitry Vyukov wrote:
>
> > Or are there some ID leaks in lockdep? syzbot has a bunch of very
> > simple reproducers for these bugs, so not really a maximally diverse
> > load. And I think I saw these bugs massively when testing just a
> > single subsystem too, e.g. netfilter.
>
> Can you share me one of the simple ones? A .c files I can run on my
> regular test box that should make it go *splat* ?
>
> Often in the past hitting these limits was the result of some
> particularly poor annotation.
>
> For instance, locks in per-cpu data used to trigger this, since
> static locks don't need explicit {mutex,spin_lock}_init() calls and
> instead use their (static) address. This worked fine for global state,
> but per-cpu is an exception, there it causes a nr_cpus explosion in
> lockdep state because you get nr_cpus different addresses.
>
> Now, we fixed that particular issue:
>
>   383776fa7527 ("locking/lockdep: Handle statically initialized PER_CPU locks properly")
>
> but maybe there's something else going on.
>
> Just blindly bumping the number without analysis of what exactly is
> happening is never a good idea.


Each of these has a fair amount of C reproducers:

BUG: MAX_LOCKDEP_KEYS too low!
https://syzkaller.appspot.com/bug?id=8a18efe79140782a88dcd098808d6ab20ed740cc

BUG: MAX_LOCKDEP_ENTRIES too low!
https://syzkaller.appspot.com/bug?id=3d97ba93fb3566000c1c59691ea427370d33ea1b

BUG: MAX_LOCKDEP_CHAINS too low!
https://syzkaller.appspot.com/bug?id=bf037f4725d40a8d350b2b1b3b3e0947c6efae85

BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
https://syzkaller.appspot.com/bug?id=381cb436fe60dc03d7fd2a092b46d7f09542a72a


I just took the latest one for one of the bugs:
https://syzkaller.appspot.com/text?tag=ReproC&x=15a096aee00000
run on next-20200114 with this config:
https://github.com/google/syzkaller/blob/master/dashboard/config/upstream-kasan.config
and got:

root@syzkaller:~# ./a.out
[  110.512842][ T6486] BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
[  110.518638][ T6486] turning off the locking correctness validator.
[  110.520779][ T6486] CPU: 3 PID: 6486 Comm: kworker/u9:1 Not tainted
5.5.0-rc6-next-20200114 #1
[  110.522496][ T6486] Hardware name: QEMU Standard PC (Q35 + ICH9,
2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebu4
[  110.524367][ T6486] Workqueue: hci0 hci_power_on
[  110.525126][ T6486] Call Trace:
[  110.525633][ T6486]  dump_stack+0x199/0x216
[  110.526294][ T6486]  __lock_acquire.cold.64+0x18/0x385
[  110.527084][ T6486]  ? lock_downgrade+0x900/0x900
[  110.527942][ T6486]  ? __kasan_check_write+0x14/0x20
[  110.528716][ T6486]  ? do_raw_spin_lock+0x132/0x2e0
[  110.529499][ T6486]  ? mark_held_locks+0x130/0x130
[  110.530284][ T6486]  ? kfree_skbmem+0xfb/0x1c0
[  110.531020][ T6486]  ? kfree_skbmem+0xfb/0x1c0
[  110.531748][ T6486]  ? hci_sock_dev_event+0x335/0x580
[  110.532578][ T6486]  lock_acquire+0x194/0x410
[  110.533305][ T6486]  ? skb_dequeue+0x22/0x180
[  110.534028][ T6486]  _raw_spin_lock_irqsave+0x99/0xd0
[  110.534873][ T6486]  ? skb_dequeue+0x22/0x180
[  110.535581][ T6486]  skb_dequeue+0x22/0x180
[  110.536263][ T6486]  skb_queue_purge+0x26/0x40
[  110.536996][ T6486]  ? vhci_open+0x310/0x310
[  110.537794][ T6486]  vhci_flush+0x3b/0x50
[  110.538481][ T6486]  hci_dev_do_close+0x5c8/0x1070
[  110.539297][ T6486]  ? hci_dev_open+0x290/0x290
[  110.540068][ T6486]  hci_power_on+0x1d8/0x690
[  110.540805][ T6486]  ? hci_error_reset+0xf0/0xf0
[  110.541603][ T6486]  ? rcu_read_lock_sched_held+0x9c/0xd0
[  110.542504][ T6486]  ? rcu_read_lock_any_held.part.11+0x50/0x50
[  110.543478][ T6486]  ? trace_hardirqs_on+0x67/0x240
[  110.544300][ T6486]  process_one_work+0x9b5/0x1750
[  110.545138][ T6486]  ? pwq_dec_nr_in_flight+0x320/0x320
[  110.545976][ T6486]  ? lock_acquire+0x194/0x410
[  110.546708][ T6486]  worker_thread+0x8b/0xd20
[  110.547414][ T6486]  ? process_one_work+0x1750/0x1750
[  110.548317][ T6486]  kthread+0x365/0x450
[  110.548960][ T6486]  ? kthread_mod_delayed_work+0x1b0/0x1b0
[  110.549867][ T6486]  ret_from_fork+0x24/0x30


There are probably some clusters of reproducers, I see several that
use /dev/vhci. But there may be other types of reproducers
(potentially for different issues).

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2020-01-13 11:11         ` Dmitry Vyukov
@ 2020-01-15 21:53           ` Cong Wang
  2020-01-16  5:25             ` Dmitry Vyukov
  2020-01-16 15:09             ` Taehee Yoo
  0 siblings, 2 replies; 19+ messages in thread
From: Cong Wang @ 2020-01-15 21:53 UTC (permalink / raw)
  To: Dmitry Vyukov
  Cc: Peter Zijlstra, Taehee Yoo, syzbot, Ingo Molnar, Will Deacon,
	LKML, syzkaller-bugs, Thomas Gleixner

On Mon, Jan 13, 2020 at 3:11 AM Dmitry Vyukov <dvyukov@google.com> wrote:
> +Taehee, Cong,
>
> In the other thread Taehee mentioned the creation of dynamic keys for
> net devices that was added recently and that they are subject to some
> limits.
> syzkaller creates lots of net devices for isolation (several dozens
> per test process, but then these can be created and destroyed
> periodically). I wonder if it's the root cause of the lockdep limits
> problems?

Very possibly. In current code base, there are 4 lockdep keys
per netdev:

        struct lock_class_key   qdisc_tx_busylock_key;
        struct lock_class_key   qdisc_running_key;
        struct lock_class_key   qdisc_xmit_lock_key;
        struct lock_class_key   addr_list_lock_key;

so the number of lockdep keys is at least 4x number of network
devices.

I think only addr_list_lock_key is necessary as it has a nested
locking use case, all the rest are not. Taehee, do you agree?

I plan to remove at least qdisc_xmit_lock_key for net-next
after the fix for net gets merged.

Thanks!

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2020-01-15 21:53           ` Cong Wang
@ 2020-01-16  5:25             ` Dmitry Vyukov
  2020-01-16 15:32               ` Taehee Yoo
  2020-01-16 15:09             ` Taehee Yoo
  1 sibling, 1 reply; 19+ messages in thread
From: Dmitry Vyukov @ 2020-01-16  5:25 UTC (permalink / raw)
  To: Cong Wang
  Cc: Peter Zijlstra, Taehee Yoo, syzbot, Ingo Molnar, Will Deacon,
	LKML, syzkaller-bugs, Thomas Gleixner

On Wed, Jan 15, 2020 at 10:53 PM Cong Wang <xiyou.wangcong@gmail.com> wrote:
> > +Taehee, Cong,
> >
> > In the other thread Taehee mentioned the creation of dynamic keys for
> > net devices that was added recently and that they are subject to some
> > limits.
> > syzkaller creates lots of net devices for isolation (several dozens
> > per test process, but then these can be created and destroyed
> > periodically). I wonder if it's the root cause of the lockdep limits
> > problems?
>
> Very possibly. In current code base, there are 4 lockdep keys
> per netdev:
>
>         struct lock_class_key   qdisc_tx_busylock_key;
>         struct lock_class_key   qdisc_running_key;
>         struct lock_class_key   qdisc_xmit_lock_key;
>         struct lock_class_key   addr_list_lock_key;
>
> so the number of lockdep keys is at least 4x number of network
> devices.

And these are not freed/reused, right? So with dynamic keys LOCKDEP
inherently can't handle prolonged running, only O(1) work?


> I think only addr_list_lock_key is necessary as it has a nested
> locking use case, all the rest are not. Taehee, do you agree?
>
> I plan to remove at least qdisc_xmit_lock_key for net-next
> after the fix for net gets merged.

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2020-01-15 21:53           ` Cong Wang
  2020-01-16  5:25             ` Dmitry Vyukov
@ 2020-01-16 15:09             ` Taehee Yoo
  2020-01-18 20:41               ` Cong Wang
  1 sibling, 1 reply; 19+ messages in thread
From: Taehee Yoo @ 2020-01-16 15:09 UTC (permalink / raw)
  To: Cong Wang
  Cc: Dmitry Vyukov, Peter Zijlstra, syzbot, Ingo Molnar, Will Deacon,
	LKML, syzkaller-bugs, Thomas Gleixner

On Thu, 16 Jan 2020 at 06:53, Cong Wang <xiyou.wangcong@gmail.com> wrote:
>

Hi Cong,

> On Mon, Jan 13, 2020 at 3:11 AM Dmitry Vyukov <dvyukov@google.com> wrote:
> > +Taehee, Cong,
> >
> > In the other thread Taehee mentioned the creation of dynamic keys for
> > net devices that was added recently and that they are subject to some
> > limits.
> > syzkaller creates lots of net devices for isolation (several dozens
> > per test process, but then these can be created and destroyed
> > periodically). I wonder if it's the root cause of the lockdep limits
> > problems?
>
> Very possibly. In current code base, there are 4 lockdep keys
> per netdev:
>
>         struct lock_class_key   qdisc_tx_busylock_key;
>         struct lock_class_key   qdisc_running_key;
>         struct lock_class_key   qdisc_xmit_lock_key;
>         struct lock_class_key   addr_list_lock_key;
>
> so the number of lockdep keys is at least 4x number of network
> devices.
>
> I think only addr_list_lock_key is necessary as it has a nested
> locking use case, all the rest are not. Taehee, do you agree?
>
> I plan to remove at least qdisc_xmit_lock_key for net-next
> after the fix for net gets merged.
>

Yes, I fully agree with this.
If we calculate the subclass for lock_nested() very well, I think we
might use static lockdep key for addr_list_lock_key too. I think
"dev->upper_level" and "dev->lower_level" might be used as subclass.
These values are updated recursively in master/nomaster operation.

Thank you
Taehee Yoo

> Thanks!

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2020-01-16  5:25             ` Dmitry Vyukov
@ 2020-01-16 15:32               ` Taehee Yoo
  2020-01-16 17:05                 ` Dmitry Vyukov
  0 siblings, 1 reply; 19+ messages in thread
From: Taehee Yoo @ 2020-01-16 15:32 UTC (permalink / raw)
  To: Dmitry Vyukov
  Cc: Cong Wang, Peter Zijlstra, syzbot, Ingo Molnar, Will Deacon,
	LKML, syzkaller-bugs, Thomas Gleixner

On Thu, 16 Jan 2020 at 14:25, Dmitry Vyukov <dvyukov@google.com> wrote:
>

Hi Dmitry!

> On Wed, Jan 15, 2020 at 10:53 PM Cong Wang <xiyou.wangcong@gmail.com> wrote:
> > > +Taehee, Cong,
> > >
> > > In the other thread Taehee mentioned the creation of dynamic keys for
> > > net devices that was added recently and that they are subject to some
> > > limits.
> > > syzkaller creates lots of net devices for isolation (several dozens
> > > per test process, but then these can be created and destroyed
> > > periodically). I wonder if it's the root cause of the lockdep limits
> > > problems?
> >
> > Very possibly. In current code base, there are 4 lockdep keys
> > per netdev:
> >
> >         struct lock_class_key   qdisc_tx_busylock_key;
> >         struct lock_class_key   qdisc_running_key;
> >         struct lock_class_key   qdisc_xmit_lock_key;
> >         struct lock_class_key   addr_list_lock_key;
> >
> > so the number of lockdep keys is at least 4x number of network
> > devices.
>
> And these are not freed/reused, right? So with dynamic keys LOCKDEP
> inherently can't handle prolonged running, only O(1) work?

When netdev interface is removed, these dynamic keys are removed.
But if so many netdev interfaces are existing concurrently
(more than 2000), lockdep will stop because of a lack of keys.
In addition, as far as I know, freeing dynamic lockdep key routine is
slower than creating a new dynamic lockdep key. If there are so many
netdev interface add/delete operations, for a while, there may be no
available lockdep key. At this moment, lockdep will stop.

Thank you
Taehee Yoo

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2020-01-16 15:32               ` Taehee Yoo
@ 2020-01-16 17:05                 ` Dmitry Vyukov
  0 siblings, 0 replies; 19+ messages in thread
From: Dmitry Vyukov @ 2020-01-16 17:05 UTC (permalink / raw)
  To: Taehee Yoo
  Cc: Cong Wang, Peter Zijlstra, syzbot, Ingo Molnar, Will Deacon,
	LKML, syzkaller-bugs, Thomas Gleixner

On Thu, Jan 16, 2020 at 4:33 PM Taehee Yoo <ap420073@gmail.com> wrote:
>
> On Thu, 16 Jan 2020 at 14:25, Dmitry Vyukov <dvyukov@google.com> wrote:
> >
>
> Hi Dmitry!
>
> > On Wed, Jan 15, 2020 at 10:53 PM Cong Wang <xiyou.wangcong@gmail.com> wrote:
> > > > +Taehee, Cong,
> > > >
> > > > In the other thread Taehee mentioned the creation of dynamic keys for
> > > > net devices that was added recently and that they are subject to some
> > > > limits.
> > > > syzkaller creates lots of net devices for isolation (several dozens
> > > > per test process, but then these can be created and destroyed
> > > > periodically). I wonder if it's the root cause of the lockdep limits
> > > > problems?
> > >
> > > Very possibly. In current code base, there are 4 lockdep keys
> > > per netdev:
> > >
> > >         struct lock_class_key   qdisc_tx_busylock_key;
> > >         struct lock_class_key   qdisc_running_key;
> > >         struct lock_class_key   qdisc_xmit_lock_key;
> > >         struct lock_class_key   addr_list_lock_key;
> > >
> > > so the number of lockdep keys is at least 4x number of network
> > > devices.
> >
> > And these are not freed/reused, right? So with dynamic keys LOCKDEP
> > inherently can't handle prolonged running, only O(1) work?
>
> When netdev interface is removed, these dynamic keys are removed.
> But if so many netdev interfaces are existing concurrently
> (more than 2000), lockdep will stop because of a lack of keys.
> In addition, as far as I know, freeing dynamic lockdep key routine is
> slower than creating a new dynamic lockdep key. If there are so many
> netdev interface add/delete operations, for a while, there may be no
> available lockdep key. At this moment, lockdep will stop.
>
> Thank you
> Taehee Yoo


This issues mostly stalled all syzbot testing by now, these LOCKDEP
bugs are the only bugs that are being detected...

2020/01/16 15:30:47 vm-2: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
2020/01/16 15:38:28 vm-3: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
2020/01/16 15:39:55 vm-0: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
2020/01/16 15:41:19 vm-6: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
2020/01/16 15:41:35 vm-1: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
2020/01/16 15:51:16 vm-2: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
2020/01/16 15:57:52 vm-4: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
2020/01/16 16:00:57 vm-6: crash: BUG: MAX_LOCKDEP_ENTRIES too low!
2020/01/16 16:36:35 vm-1: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!
2020/01/16 16:37:04 vm-3: crash: BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low!

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2020-01-16 15:09             ` Taehee Yoo
@ 2020-01-18 20:41               ` Cong Wang
  2020-03-04  8:03                 ` Dmitry Vyukov
  0 siblings, 1 reply; 19+ messages in thread
From: Cong Wang @ 2020-01-18 20:41 UTC (permalink / raw)
  To: Taehee Yoo
  Cc: Dmitry Vyukov, Peter Zijlstra, syzbot, Ingo Molnar, Will Deacon,
	LKML, syzkaller-bugs, Thomas Gleixner

On Thu, Jan 16, 2020 at 7:09 AM Taehee Yoo <ap420073@gmail.com> wrote:
> Yes, I fully agree with this.
> If we calculate the subclass for lock_nested() very well, I think we
> might use static lockdep key for addr_list_lock_key too. I think
> "dev->upper_level" and "dev->lower_level" might be used as subclass.
> These values are updated recursively in master/nomaster operation.

Great! I will think about this too. At least I will remove the other keys
for net-next.

Thanks.

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2020-01-18 20:41               ` Cong Wang
@ 2020-03-04  8:03                 ` Dmitry Vyukov
  2020-03-04 23:19                   ` Cong Wang
  0 siblings, 1 reply; 19+ messages in thread
From: Dmitry Vyukov @ 2020-03-04  8:03 UTC (permalink / raw)
  To: Cong Wang
  Cc: Taehee Yoo, Peter Zijlstra, syzbot, Ingo Molnar, Will Deacon,
	LKML, syzkaller-bugs, Thomas Gleixner

On Sat, Jan 18, 2020 at 9:41 PM Cong Wang <xiyou.wangcong@gmail.com> wrote:
>
> On Thu, Jan 16, 2020 at 7:09 AM Taehee Yoo <ap420073@gmail.com> wrote:
> > Yes, I fully agree with this.
> > If we calculate the subclass for lock_nested() very well, I think we
> > might use static lockdep key for addr_list_lock_key too. I think
> > "dev->upper_level" and "dev->lower_level" might be used as subclass.
> > These values are updated recursively in master/nomaster operation.
>
> Great! I will think about this too. At least I will remove the other keys
> for net-next.

Hi Cong,

Was this done? This still harms testing of the whole kernel. Disabling
LOCKDEP does not look good either...

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2020-03-04  8:03                 ` Dmitry Vyukov
@ 2020-03-04 23:19                   ` Cong Wang
  0 siblings, 0 replies; 19+ messages in thread
From: Cong Wang @ 2020-03-04 23:19 UTC (permalink / raw)
  To: Dmitry Vyukov
  Cc: Taehee Yoo, Peter Zijlstra, syzbot, Ingo Molnar, Will Deacon,
	LKML, syzkaller-bugs, Thomas Gleixner

On Wed, Mar 4, 2020 at 12:03 AM Dmitry Vyukov <dvyukov@google.com> wrote:
>
> On Sat, Jan 18, 2020 at 9:41 PM Cong Wang <xiyou.wangcong@gmail.com> wrote:
> >
> > On Thu, Jan 16, 2020 at 7:09 AM Taehee Yoo <ap420073@gmail.com> wrote:
> > > Yes, I fully agree with this.
> > > If we calculate the subclass for lock_nested() very well, I think we
> > > might use static lockdep key for addr_list_lock_key too. I think
> > > "dev->upper_level" and "dev->lower_level" might be used as subclass.
> > > These values are updated recursively in master/nomaster operation.
> >
> > Great! I will think about this too. At least I will remove the other keys
> > for net-next.
>
> Hi Cong,
>
> Was this done? This still harms testing of the whole kernel. Disabling
> LOCKDEP does not look good either...

Not yet, I have a half-done patch locally, will work on it to make it
complete for net-next.

Thanks for reminding me!

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2019-10-20 23:33 ` syzbot
@ 2020-04-15 18:52   ` Cong Wang
  2020-04-15 19:17     ` syzbot
  0 siblings, 1 reply; 19+ messages in thread
From: Cong Wang @ 2020-04-15 18:52 UTC (permalink / raw)
  To: syzbot
  Cc: Dmitry Vyukov, LKML, Ingo Molnar, Peter Zijlstra, syzkaller-bugs,
	Thomas Gleixner, Will Deacon

#syz test: https://github.com/congwang/linux.git lockdep

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: BUG: MAX_LOCKDEP_CHAINS too low!
  2020-04-15 18:52   ` Cong Wang
@ 2020-04-15 19:17     ` syzbot
  0 siblings, 0 replies; 19+ messages in thread
From: syzbot @ 2020-04-15 19:17 UTC (permalink / raw)
  To: dvyukov, linux-kernel, mingo, peterz, syzkaller-bugs, tglx,
	will.deacon, xiyou.wangcong

Hello,

syzbot tried to test the proposed patch but build/boot failed:

o-wq.o
  CC      drivers/hid/hid-ezkey.o
  CC      drivers/hid/hid-google-hammer.o
  CC      net/mac80211/rc80211_minstrel_ht.o
  CC      net/openvswitch/vport-internal_dev.o
  CC      drivers/infiniband/ulp/opa_vnic/opa_vnic_ethtool.o
  CC      net/mac80211/rc80211_minstrel_debugfs.o
  CC      net/mac80211/rc80211_minstrel_ht_debugfs.o
  CC      drivers/infiniband/ulp/opa_vnic/opa_vnic_vema.o
  CC      drivers/infiniband/ulp/opa_vnic/opa_vnic_vema_iface.o
  CC      net/mpls/mpls_gso.o
  CC      net/mpls/af_mpls.o
  AR      drivers/staging/media/built-in.a
  CC      drivers/infiniband/core/user_mad.o
  CC      drivers/infiniband/core/uverbs_main.o
  CC      drivers/staging/android/ion/ion.o
  CC      net/batman-adv/bat_v_ogm.o
  CC      fs/locks.o
  CC      net/vmw_vsock/vsock_loopback.o
  CC      net/vmw_vsock/virtio_transport.o
  CC      net/vmw_vsock/virtio_transport_common.o
  CC      net/nfc/digital_core.o
  CC      drivers/hid/hid-gyration.o
  CC      drivers/staging/android/ion/ion_heap.o
  CC      drivers/staging/android/ion/ion_page_pool.o
  CC      drivers/staging/android/ion/ion_system_heap.o
  AR      drivers/vhost/built-in.a
  CC      drivers/gpu/drm/i915/display/intel_dpio_phy.o
  CC      drivers/gpu/drm/i915/display/intel_dpll_mgr.o
  CC      net/mpls/mpls_iptunnel.o
  CC      drivers/hid/hid-holtek-kbd.o
  CC      drivers/hid/hid-holtek-mouse.o
  CC      fs/compat.o
  CC      net/netfilter/xt_nat.o
  CC      net/openvswitch/vport-netdev.o
  CC      drivers/md/dm-log.o
  CC      net/nfc/digital_technology.o
  CC      net/nfc/digital_dep.o
  CC      net/netfilter/xt_AUDIT.o
  CC      net/netfilter/xt_CHECKSUM.o
  CC      net/netfilter/xt_CLASSIFY.o
  CC      drivers/hid/hid-holtekff.o
  CC      drivers/hid/hid-ite.o
  CC      net/openvswitch/conntrack.o
  CC      net/openvswitch/vport-vxlan.o
  CC      drivers/gpu/drm/i915/display/intel_dsb.o
  CC      net/wireless/pmsr.o
  CC      net/openvswitch/vport-geneve.o
  CC      drivers/staging/android/ion/ion_cma_heap.o
  CC      drivers/gpu/drm/i915/display/intel_fbc.o
  CC      net/wireless/debugfs.o
  CC      drivers/hid/hid-keytouch.o
  CC      fs/binfmt_misc.o
  CC      drivers/hid/hid-kensington.o
  CC      fs/binfmt_script.o
  CC      fs/binfmt_elf.o
  CC      fs/compat_binfmt_elf.o
  CC      drivers/gpu/drm/i915/display/intel_fifo_underrun.o
  CC      fs/posix_acl.o
  CC      fs/mbcache.o
  CC      drivers/hid/hid-kye.o
  CC      fs/coredump.o
  CC      drivers/md/dm-region-hash.o
  AR      drivers/infiniband/sw/rdmavt/built-in.a
  CC      fs/drop_caches.o
  CC      drivers/gpu/drm/i915/display/intel_frontbuffer.o
  AR      drivers/infiniband/sw/built-in.a
  CC      fs/fhandle.o
  CC      drivers/hid/hid-lcpower.o
  CC      net/wireless/wext-compat.o
  AR      drivers/infiniband/ulp/opa_vnic/built-in.a
  CC      fs/dcookies.o
  CC      drivers/platform/x86/eeepc-laptop.o
  AR      drivers/infiniband/ulp/built-in.a
  CC      drivers/staging/android/ashmem.o
  CC      drivers/platform/x86/intel_menlow.o
  CC      drivers/gpu/drm/i915/display/intel_global_state.o
  CC      net/netfilter/xt_CONNSECMARK.o
  CC      net/netfilter/xt_CT.o
  CC      drivers/platform/x86/i2c-multi-instantiate.o
  AR      drivers/staging/android/ion/built-in.a
  CC      drivers/mailbox/mailbox.o
  CC      net/batman-adv/bitarray.o
  CC      net/batman-adv/bridge_loop_avoidance.o
  CC      drivers/md/dm-zero.o
  CC      drivers/mailbox/pcc.o
  CC      net/netfilter/xt_DSCP.o
  CC      net/netfilter/xt_HL.o
  CC      net/openvswitch/vport-gre.o
  CC      drivers/infiniband/core/uverbs_cmd.o
  CC      drivers/gpu/drm/i915/display/intel_hdcp.o
  CC      net/wireless/wext-sme.o
  CC      drivers/hid/hid-lg.o
  GEN     net/wireless/shipped-certs.c
  AR      drivers/perf/built-in.a
  CC      drivers/extcon/devres.o
  CC      drivers/extcon/extcon.o
  AR      net/nfc/built-in.a
  CC      drivers/platform/chrome/chromeos_laptop.o
  CC      drivers/platform/chrome/chromeos_pstore.o
  CC      drivers/platform/chrome/chromeos_tbmc.o
  CC      drivers/platform/x86/pmc_atom.o
  CC      drivers/md/dm-raid.o
  CC      drivers/gpu/drm/i915/display/intel_hotplug.o
  CC      drivers/infiniband/core/uverbs_marshall.o
  CC      drivers/gpu/drm/i915/display/intel_lpe_audio.o
  CC      drivers/infiniband/core/rdma_core.o
  CC      drivers/infiniband/core/uverbs_std_types.o
  CC      drivers/infiniband/core/uverbs_ioctl.o
  CC      drivers/md/dm-thin.o
  CC      drivers/md/dm-thin-metadata.o
  CC      drivers/md/dm-verity-fec.o
  CC      net/nsh/nsh.o
  CC      net/wireless/wext-core.o
  CC      drivers/ras/ras.o
  CC      drivers/ras/debugfs.o
  CC      net/batman-adv/distributed-arp-table.o
  AR      drivers/hwtracing/intel_th/built-in.a
  CC      drivers/platform/chrome/cros_ec.o
  CC      drivers/infiniband/core/uverbs_std_types_cq.o
  CC      drivers/hid/hid-lgff.o
  CC      net/netfilter/xt_HMARK.o
  CC      drivers/gpu/drm/i915/display/intel_overlay.o
  CC      net/netfilter/xt_LED.o
  CC      net/netfilter/xt_LOG.o
  AR      drivers/staging/android/built-in.a
  AR      drivers/staging/built-in.a
  CC      net/netfilter/xt_NETMAP.o
  AR      drivers/mailbox/built-in.a
  CC      net/netfilter/xt_NFLOG.o
  CC      net/hsr/hsr_main.o
  CC      drivers/infiniband/core/uverbs_std_types_flow_action.o
  CC      drivers/android/binder_alloc.o
  CC      drivers/android/binder.o
  CC      net/netfilter/xt_NFQUEUE.o
  CC      net/netfilter/xt_RATEEST.o
  CC      drivers/counter/counter.o
  CC      net/netfilter/xt_REDIRECT.o
  CC      net/switchdev/switchdev.o
  AR      net/vmw_vsock/built-in.a
  CC      net/l3mdev/l3mdev.o
  CC      net/netfilter/xt_MASQUERADE.o
  CC      net/netfilter/xt_SECMARK.o
  CC      drivers/platform/chrome/cros_ec_proto.o
  CC      net/wireless/wext-proc.o
  CC      drivers/infiniband/core/uverbs_std_types_dm.o
  AR      drivers/platform/x86/built-in.a
  CC      net/wireless/shipped-certs.o
  CC      drivers/gpu/drm/i915/display/intel_psr.o
  CC      drivers/gpu/drm/i915/display/intel_quirks.o
  AR      drivers/net/built-in.a
  CC      drivers/infiniband/core/uverbs_std_types_mr.o
  CC      drivers/infiniband/core/uverbs_std_types_counters.o
  CC      drivers/infiniband/core/uverbs_uapi.o
  CC      drivers/hid/hid-lg2ff.o
  CC      drivers/hid/hid-lg3ff.o
  CC      net/netfilter/xt_TPROXY.o
  CC      net/netfilter/xt_TCPMSS.o
  CC      net/hsr/hsr_framereg.o
  CC      net/batman-adv/fragmentation.o
  CC      net/batman-adv/gateway_client.o
  CC      drivers/md/dm-verity-target.o
  AR      drivers/extcon/built-in.a
  CC      net/hsr/hsr_device.o
  CC      drivers/infiniband/core/uverbs_std_types_device.o
  AR      net/nsh/built-in.a
  CC      net/hsr/hsr_slave.o
  CC      net/hsr/hsr_netlink.o
  AR      net/openvswitch/built-in.a
  CC      net/hsr/hsr_forward.o
  CC      net/hsr/hsr_debugfs.o
  CC      drivers/infiniband/core/uverbs_std_types_async_fd.o
  CC      net/batman-adv/gateway_common.o
  CC      drivers/infiniband/core/umem.o
  AR      net/mpls/built-in.a
  CC      drivers/infiniband/core/umem_odp.o
  CC      drivers/gpu/drm/i915/display/intel_sprite.o
  CC      drivers/infiniband/core/ucma.o
  CC      net/netfilter/xt_TCPOPTSTRIP.o
  CC      drivers/md/dm-cache-target.o
  CC      drivers/gpu/drm/i915/display/intel_tc.o
  CC      drivers/gpu/drm/i915/display/intel_vga.o
  CC      net/batman-adv/hard-interface.o
  CC      net/netfilter/xt_TEE.o
  CC      drivers/gpu/drm/i915/display/intel_acpi.o
  CC      drivers/hid/hid-lg4ff.o
  CC      net/batman-adv/main.o
  CC      net/netfilter/xt_TRACE.o
  CC      net/batman-adv/hash.o
  CC      net/batman-adv/multicast.o
  CC      net/ncsi/ncsi-cmd.o
  CC      drivers/hid/hid-lg-g15.o
  CC      net/ncsi/ncsi-rsp.o
  CC      drivers/hid/hid-logitech-dj.o
  CC      net/netfilter/xt_IDLETIMER.o
  CC      drivers/hid/hid-logitech-hidpp.o
  AR      drivers/ras/built-in.a
  AR      net/l3mdev/built-in.a
  CC      net/xdp/xsk.o
  CC      net/batman-adv/netlink.o
  CC      drivers/platform/chrome/cros_ec_trace.o
  CC      net/xdp/xdp_umem.o
  CC      net/xdp/xsk_queue.o
  AR      drivers/counter/built-in.a
  CC      net/xdp/xsk_diag.o
  CC      drivers/gpu/drm/i915/display/intel_opregion.o
  CC      drivers/hid/hid-magicmouse.o
  CC      drivers/platform/chrome/cros_kbd_led_backlight.o
  CC      drivers/platform/chrome/cros_ec_chardev.o
  CC      drivers/platform/chrome/cros_ec_lightbar.o
  CC      drivers/platform/chrome/cros_ec_debugfs.o
  CC      drivers/gpu/drm/i915/display/intel_fbdev.o
  AR      net/switchdev/built-in.a
  CC      net/batman-adv/network-coding.o
  CC      net/batman-adv/originator.o
  CC      drivers/gpu/drm/i915/display/dvo_ch7017.o
  CC      net/socket.o
  CC      net/ncsi/ncsi-aen.o
  CC      drivers/gpu/drm/i915/display/dvo_ch7xxx.o
  CC      drivers/gpu/drm/i915/display/dvo_ivch.o
  CC      drivers/gpu/drm/i915/display/dvo_ns2501.o
  CC      drivers/gpu/drm/i915/display/dvo_sil164.o
  CC      net/ncsi/ncsi-manage.o
  CC      drivers/gpu/drm/i915/display/dvo_tfp410.o
  CC      net/netfilter/xt_addrtype.o
  CC      drivers/hid/hid-microsoft.o
  CC      drivers/hid/hid-monterey.o
  CC      net/netfilter/xt_bpf.o
  AR      net/hsr/built-in.a
  CC      drivers/gpu/drm/i915/display/icl_dsi.o
  CC      net/netfilter/xt_cluster.o
  CC      net/compat.o
  CC      net/sysctl_net.o
  CC      drivers/platform/chrome/cros_ec_sensorhub.o
  CC      drivers/platform/chrome/cros_ec_sysfs.o
  CC      drivers/md/dm-cache-metadata.o
  CC      net/batman-adv/routing.o
  AR      net/mac80211/built-in.a
  CC      net/netfilter/xt_comment.o
  CC      drivers/md/dm-cache-policy.o
  CC      net/ncsi/ncsi-netlink.o
  CC      drivers/md/dm-cache-background-tracker.o
  CC      drivers/hid/hid-multitouch.o
  CC      drivers/hid/hid-ntrig.o
  CC      drivers/hid/hid-ortek.o
  CC      net/batman-adv/send.o
  CC      net/netfilter/xt_connbytes.o
  CC      drivers/hid/hid-prodikeys.o
  CC      net/netfilter/xt_connlabel.o
  CC      net/batman-adv/soft-interface.o
  CC      drivers/md/dm-cache-policy-smq.o
  CC      drivers/gpu/drm/i915/display/intel_crt.o
  CC      net/batman-adv/sysfs.o
  CC      drivers/hid/hid-pl.o
  CC      drivers/gpu/drm/i915/display/intel_ddi.o
  CC      drivers/md/dm-clone-target.o
  CC      net/batman-adv/tp_meter.o
  CC      drivers/gpu/drm/i915/display/intel_dp.o
  CC      drivers/gpu/drm/i915/display/intel_dp_aux_backlight.o
  CC      drivers/gpu/drm/i915/display/intel_dp_link_training.o
  CC      drivers/gpu/drm/i915/display/intel_dp_mst.o
  CC      net/batman-adv/translation-table.o
  CC      net/batman-adv/tvlv.o
  CC      net/netfilter/xt_conntrack.o
  CC      net/netfilter/xt_connlimit.o
  AR      drivers/platform/chrome/built-in.a
  CC      net/netfilter/xt_cpu.o
  CC      drivers/hid/hid-petalynx.o
  AR      drivers/platform/built-in.a
  CC      drivers/gpu/drm/i915/display/intel_dsi.o
  CC      drivers/hid/hid-picolcd_core.o
  CC      drivers/gpu/drm/i915/display/intel_dsi_vbt.o
  CC      drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.o
  CC      drivers/gpu/drm/i915/display/intel_dvo.o
  CC      net/netfilter/xt_dccp.o
  CC      drivers/md/dm-clone-metadata.o
  CC      drivers/md/dm-integrity.o
  CC      net/netfilter/xt_devgroup.o
  CC      drivers/md/dm-zoned-metadata.o
  CC      drivers/md/dm-zoned-target.o
  CC      drivers/md/dm-zoned-reclaim.o
  CC      drivers/hid/hid-picolcd_debugfs.o
  CC      net/netfilter/xt_dscp.o
  CC      drivers/md/dm-writecache.o
  CC      net/netfilter/xt_ecn.o
  CC      net/netfilter/xt_esp.o
  CC      net/netfilter/xt_hashlimit.o
  CC      net/netfilter/xt_helper.o
  AR      drivers/infiniband/core/built-in.a
  CC      drivers/hid/hid-plantronics.o
  AR      drivers/infiniband/built-in.a
  CC      drivers/hid/hid-primax.o
  CC      drivers/gpu/drm/i915/display/intel_gmbus.o
  CC      net/netfilter/xt_hl.o
  CC      drivers/gpu/drm/i915/display/intel_hdmi.o
  CC      drivers/hid/hid-roccat.o
  CC      drivers/hid/hid-roccat-common.o
  CC      drivers/gpu/drm/i915/display/intel_lspcon.o
  CC      net/netfilter/xt_ipcomp.o
  CC      drivers/hid/hid-roccat-arvo.o
  CC      net/netfilter/xt_iprange.o
  CC      drivers/hid/hid-roccat-isku.o
  CC      drivers/hid/hid-roccat-kone.o
  CC      net/netfilter/xt_ipvs.o
  CC      drivers/hid/hid-roccat-koneplus.o
  CC      net/netfilter/xt_l2tp.o
  CC      net/netfilter/xt_length.o
  CC      drivers/gpu/drm/i915/display/intel_lvds.o
  CC      net/netfilter/xt_limit.o
  CC      drivers/hid/hid-roccat-konepure.o
  CC      drivers/hid/hid-roccat-kovaplus.o
  CC      net/netfilter/xt_mac.o
  CC      drivers/hid/hid-roccat-lua.o
  CC      drivers/gpu/drm/i915/display/intel_panel.o
  CC      net/netfilter/xt_multiport.o
  CC      net/netfilter/xt_nfacct.o
  CC      drivers/gpu/drm/i915/display/intel_sdvo.o
  CC      drivers/gpu/drm/i915/display/intel_tv.o
  CC      net/netfilter/xt_osf.o
  CC      drivers/hid/hid-roccat-pyra.o
  AR      net/xdp/built-in.a
  CC      net/netfilter/xt_owner.o
  CC      drivers/gpu/drm/i915/display/intel_vdsc.o
  CC      net/netfilter/xt_cgroup.o
  CC      drivers/gpu/drm/i915/display/vlv_dsi.o
  CC      drivers/gpu/drm/i915/display/vlv_dsi_pll.o
  CC      net/netfilter/xt_physdev.o
  CC      net/netfilter/xt_pkttype.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_hsw.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_bdw.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_chv.o
  CC      net/netfilter/xt_policy.o
  CC      net/netfilter/xt_rateest.o
  CC      net/netfilter/xt_quota.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_sklgt2.o
  CC      drivers/hid/hid-roccat-ryos.o
  CC      drivers/hid/hid-roccat-savu.o
  CC      drivers/hid/hid-rmi.o
  CC      net/netfilter/xt_realm.o
  CC      drivers/hid/hid-saitek.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_sklgt3.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_sklgt4.o
  CC      net/netfilter/xt_recent.o
  CC      drivers/hid/hid-samsung.o
  CC      drivers/hid/hid-sjoy.o
  CC      net/netfilter/xt_sctp.o
  CC      net/netfilter/xt_socket.o
  CC      net/netfilter/xt_state.o
  AR      net/ncsi/built-in.a
  CC      drivers/hid/hid-sony.o
  CC      net/netfilter/xt_string.o
  CC      drivers/hid/hid-speedlink.o
  CC      net/netfilter/xt_statistic.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_bxt.o
  CC      drivers/hid/hid-sunplus.o
  CC      net/netfilter/xt_tcpmss.o
  CC      drivers/hid/hid-gaff.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_kblgt2.o
  CC      net/netfilter/xt_time.o
  CC      drivers/hid/hid-tmff.o
  CC      net/netfilter/xt_u32.o
  CC      drivers/hid/hid-tivo.o
  CC      drivers/hid/hid-topseed.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_kblgt3.o
  CC      drivers/hid/hid-twinhan.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_glk.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_cflgt2.o
  AR      fs/built-in.a
  CC      drivers/gpu/drm/i915/oa/i915_oa_cflgt3.o
  CC      drivers/hid/hid-uclogic-rdesc.o
  CC      drivers/hid/hid-uclogic-core.o
  CC      drivers/hid/hid-uclogic-params.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_cnl.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_icl.o
  CC      drivers/hid/hid-zpff.o
  CC      drivers/hid/hid-led.o
  CC      drivers/hid/hid-zydacron.o
  CC      drivers/hid/wacom_sys.o
  CC      drivers/hid/wacom_wac.o
  CC      drivers/gpu/drm/i915/oa/i915_oa_tgl.o
  CC      drivers/hid/hid-waltop.o
  CC      drivers/gpu/drm/i915/i915_perf.o
  CC      drivers/gpu/drm/i915/i915_gpu_error.o
  CC      drivers/gpu/drm/i915/i915_vgpu.o
  CC      drivers/hid/hid-wiimote-core.o
  CC      drivers/hid/hid-wiimote-modules.o
  CC      drivers/hid/hid-wiimote-debug.o
  AR      net/netfilter/built-in.a
  AR      net/batman-adv/built-in.a
  AR      drivers/android/built-in.a
  AR      drivers/md/built-in.a
  AR      net/wireless/built-in.a
  AR      net/built-in.a
  AR      drivers/hid/built-in.a
  AR      drivers/gpu/drm/i915/built-in.a
  AR      drivers/gpu/drm/built-in.a
  AR      drivers/gpu/built-in.a
  AR      drivers/built-in.a
  GEN     .version
  CHK     include/generated/compile.h
  LD      vmlinux.o
  MODPOST vmlinux.o
  MODINFO modules.builtin.modinfo
  GEN     modules.builtin
BTF: .tmp_vmlinux.btf: pahole version v1.9 is too old, need at least v1.13
Failed to generate BTF for vmlinux
Try to disable CONFIG_DEBUG_INFO_BTF
Makefile:1086: recipe for target 'vmlinux' failed
make: *** [vmlinux] Error 1


Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=1469749be00000


Tested on:

commit:         efa133f3 net: rewrite netif_addr_lock_nested() with dev->l..
git tree:       https://github.com/congwang/linux.git lockdep
dashboard link: https://syzkaller.appspot.com/bug?extid=aaa6fa4949cc5d9b7b25
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)


^ permalink raw reply	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2020-04-15 19:17 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-09-28  5:51 BUG: MAX_LOCKDEP_CHAINS too low! syzbot
2018-09-28  6:06 ` Dmitry Vyukov
2018-09-28  7:00   ` Peter Zijlstra
2018-09-28  7:56     ` Dmitry Vyukov
2020-01-09 10:59       ` Dmitry Vyukov
2020-01-13 11:11         ` Dmitry Vyukov
2020-01-15 21:53           ` Cong Wang
2020-01-16  5:25             ` Dmitry Vyukov
2020-01-16 15:32               ` Taehee Yoo
2020-01-16 17:05                 ` Dmitry Vyukov
2020-01-16 15:09             ` Taehee Yoo
2020-01-18 20:41               ` Cong Wang
2020-03-04  8:03                 ` Dmitry Vyukov
2020-03-04 23:19                   ` Cong Wang
2020-01-14  8:43         ` Peter Zijlstra
2020-01-14 10:18           ` Dmitry Vyukov
2019-10-20 23:33 ` syzbot
2020-04-15 18:52   ` Cong Wang
2020-04-15 19:17     ` syzbot

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