* INFO: task can't die in request_wait_answer
@ 2020-09-23 12:48 syzbot
2020-10-05 4:10 ` syzbot
0 siblings, 1 reply; 3+ messages in thread
From: syzbot @ 2020-09-23 12:48 UTC (permalink / raw)
To: linux-fsdevel, linux-kernel, miklos, syzkaller-bugs
Hello,
syzbot found the following issue on:
HEAD commit: dcf2427b Add linux-next specific files for 20200923
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=111346c5900000
kernel config: https://syzkaller.appspot.com/x/.config?x=254e028a642027c
dashboard link: https://syzkaller.appspot.com/bug?extid=ea48ca29949b1820e745
compiler: gcc (GCC) 10.1.0-syz 20200507
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ea48ca29949b1820e745@syzkaller.appspotmail.com
INFO: task syz-executor.3:19649 can't die for more than 143 seconds.
task:syz-executor.3 state:D stack:27488 pid:19649 ppid: 6909 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3777 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4526
schedule+0xcf/0x270 kernel/sched/core.c:4604
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_lookup_name+0x258/0x5c0 fs/fuse/dir.c:352
fuse_lookup+0xdf/0x390 fs/fuse/dir.c:390
fuse_atomic_open+0x210/0x340 fs/fuse/dir.c:533
atomic_open fs/namei.c:2970 [inline]
lookup_open.isra.0+0xc09/0x1350 fs/namei.c:3076
open_last_lookups fs/namei.c:3178 [inline]
path_openat+0x96d/0x2730 fs/namei.c:3366
do_filp_open+0x17e/0x3c0 fs/namei.c:3396
do_sys_openat2+0x16d/0x420 fs/open.c:1168
do_sys_open fs/open.c:1184 [inline]
__do_sys_openat fs/open.c:1200 [inline]
__se_sys_openat fs/open.c:1195 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1195
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e179
Code: Bad RIP value.
RSP: 002b:00007fe86377ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000021e00 RCX: 000000000045e179
RDX: 0000000000000000 RSI: 0000000020002040 RDI: ffffffffffffff9c
RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007ffe2255861f R14: 00007fe86377b9c0 R15: 000000000118cf4c
INFO: task syz-executor.3:19649 blocked for more than 143 seconds.
Not tainted 5.9.0-rc6-next-20200923-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27488 pid:19649 ppid: 6909 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3777 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4526
schedule+0xcf/0x270 kernel/sched/core.c:4604
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_lookup_name+0x258/0x5c0 fs/fuse/dir.c:352
fuse_lookup+0xdf/0x390 fs/fuse/dir.c:390
fuse_atomic_open+0x210/0x340 fs/fuse/dir.c:533
atomic_open fs/namei.c:2970 [inline]
lookup_open.isra.0+0xc09/0x1350 fs/namei.c:3076
open_last_lookups fs/namei.c:3178 [inline]
path_openat+0x96d/0x2730 fs/namei.c:3366
do_filp_open+0x17e/0x3c0 fs/namei.c:3396
do_sys_openat2+0x16d/0x420 fs/open.c:1168
do_sys_open fs/open.c:1184 [inline]
__do_sys_openat fs/open.c:1200 [inline]
__se_sys_openat fs/open.c:1195 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1195
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e179
Code: Bad RIP value.
RSP: 002b:00007fe86377ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000021e00 RCX: 000000000045e179
RDX: 0000000000000000 RSI: 0000000020002040 RDI: ffffffffffffff9c
RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007ffe2255861f R14: 00007fe86377b9c0 R15: 000000000118cf4c
Showing all locks held in the system:
4 locks held by kworker/u4:6/255:
#0: ffff8880ae536098 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1292 [inline]
#0: ffff8880ae536098 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x284/0x2200 kernel/sched/core.c:4444
#1: ffff8880ae520ec8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x305/0x440 kernel/sched/psi.c:833
#2: ffff8880ae525698 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x5a/0x1f0 kernel/time/timer.c:947
#3: ffffffff8dd778e0 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x12e/0x3e0 lib/debugobjects.c:636
1 lock held by khungtaskd/1176:
#0: ffffffff8a553d40 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6221
2 locks held by syz-executor.3/19649:
#0: ffff8880552bc850 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:792 [inline]
#0: ffff8880552bc850 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: open_last_lookups fs/namei.c:3177 [inline]
#0: ffff8880552bc850 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x14a3/0x2730 fs/namei.c:3366
#1: ffff8880552bcc28 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xaf/0xe0 fs/fuse/inode.c:375
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 1176 Comm: khungtaskd Not tainted 5.9.0-rc6-next-20200923-syzkaller #0
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+0x198/0x1fb lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:147 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:253 [inline]
watchdog+0xd89/0xf30 kernel/hung_task.c:339
kthread+0x3af/0x4a0 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6674 Comm: rs:main Q:Reg Not tainted 5.9.0-rc6-next-20200923-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:find_held_lock+0xec/0x110 kernel/locking/lockdep.c:4922
Code: 00 fc ff df 4c 89 f2 48 c1 ea 03 0f b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 11 5b 45 89 3e 4c 89 e0 5d 41 5c <41> 5d 41 5e 41 5f c3 4c 89 f7 e8 75 95 5c 00 eb e5 e8 de 94 5c 00
RSP: 0018:ffffc9000a517d60 EFLAGS: 00000097
RAX: ffff888093356af8 RBX: 1ffff920014a2fb2 RCX: ffffc9000a517dd0
RDX: 0000000000000004 RSI: ffff888214090460 RDI: ffff888093356af8
RBP: ffff888214090460 R08: 0000000000000001 R09: ffff888093356ac8
R10: fffffbfff1769349 R11: 0000000000000000 R12: ffffffff81c19c45
R13: ffff888214090460 R14: ffffc9000a517dd0 R15: 0000000000000001
FS: 00007ff45700c700(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f4c7c4018 CR3: 00000000a44c7000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_release kernel/locking/lockdep.c:5083 [inline]
lock_release+0x247/0x890 kernel/locking/lockdep.c:5418
percpu_up_read include/linux/percpu-rwsem.h:99 [inline]
__sb_end_write+0x2d/0x1b0 fs/super.c:1638
file_end_write include/linux/fs.h:2782 [inline]
vfs_write+0x375/0x700 fs/read_write.c:603
ksys_write+0x12d/0x250 fs/read_write.c:648
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7ff459a501cd
Code: c2 20 00 00 75 10 b8 01 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ae fc ff ff 48 89 04 24 b8 01 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 f7 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ff45700b590 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ff44c023900 RCX: 00007ff459a501cd
RDX: 0000000000000525 RSI: 00007ff44c023900 RDI: 0000000000000006
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007ff44c023680
R13: 00007ff45700b5b0 R14: 0000556d485ab360 R15: 0000000000000525
---
This report 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 issue. See:
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: INFO: task can't die in request_wait_answer
2020-09-23 12:48 INFO: task can't die in request_wait_answer syzbot
@ 2020-10-05 4:10 ` syzbot
2020-10-07 20:58 ` Qian Cai
0 siblings, 1 reply; 3+ messages in thread
From: syzbot @ 2020-10-05 4:10 UTC (permalink / raw)
To: linux-fsdevel, linux-kernel, miklos, syzkaller-bugs
syzbot has found a reproducer for the following issue on:
HEAD commit: 2172e358 Add linux-next specific files for 20201002
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=1596c7a3900000
kernel config: https://syzkaller.appspot.com/x/.config?x=70698f530a7e856f
dashboard link: https://syzkaller.appspot.com/bug?extid=ea48ca29949b1820e745
compiler: gcc (GCC) 10.1.0-syz 20200507
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16e1c8e7900000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10a166af900000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ea48ca29949b1820e745@syzkaller.appspotmail.com
INFO: task syz-executor220:7040 can't die for more than 143 seconds.
task:syz-executor220 state:D stack:28792 pid: 7040 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7040 blocked for more than 143 seconds.
Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor220 state:D stack:28792 pid: 7040 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7044 can't die for more than 143 seconds.
task:syz-executor220 state:D stack:28752 pid: 7044 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7044 blocked for more than 144 seconds.
Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor220 state:D stack:28752 pid: 7044 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7066 can't die for more than 144 seconds.
task:syz-executor220 state:D stack:29048 pid: 7066 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7066 blocked for more than 144 seconds.
Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor220 state:D stack:29048 pid: 7066 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7071 can't die for more than 144 seconds.
task:syz-executor220 state:D stack:29048 pid: 7071 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7071 blocked for more than 145 seconds.
Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor220 state:D stack:29048 pid: 7071 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7087 can't die for more than 145 seconds.
task:syz-executor220 state:D stack:29048 pid: 7087 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7087 blocked for more than 145 seconds.
Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor220 state:D stack:29048 pid: 7087 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7097 can't die for more than 145 seconds.
task:syz-executor220 state:D stack:28912 pid: 7097 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7097 blocked for more than 146 seconds.
Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor220 state:D stack:28912 pid: 7097 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7110 can't die for more than 146 seconds.
task:syz-executor220 state:D stack:29048 pid: 7110 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7110 blocked for more than 146 seconds.
Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor220 state:D stack:29048 pid: 7110 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7111 can't die for more than 147 seconds.
task:syz-executor220 state:D stack:29048 pid: 7111 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7111 blocked for more than 147 seconds.
Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor220 state:D stack:29048 pid: 7111 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7128 can't die for more than 147 seconds.
task:syz-executor220 state:D stack:29048 pid: 7128 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7128 blocked for more than 147 seconds.
Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor220 state:D stack:29048 pid: 7128 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7136 can't die for more than 148 seconds.
task:syz-executor220 state:D stack:29048 pid: 7136 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7136 blocked for more than 148 seconds.
Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor220 state:D stack:29048 pid: 7136 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7149 can't die for more than 148 seconds.
task:syz-executor220 state:D stack:28912 pid: 7149 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7164 can't die for more than 148 seconds.
task:syz-executor220 state:D stack:28912 pid: 7164 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7165 can't die for more than 149 seconds.
task:syz-executor220 state:D stack:29048 pid: 7165 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7178 can't die for more than 149 seconds.
task:syz-executor220 state:D stack:28912 pid: 7178 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7192 can't die for more than 149 seconds.
task:syz-executor220 state:D stack:28912 pid: 7192 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7199 can't die for more than 149 seconds.
task:syz-executor220 state:D stack:29048 pid: 7199 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7215 can't die for more than 150 seconds.
task:syz-executor220 state:D stack:29048 pid: 7215 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7224 can't die for more than 150 seconds.
task:syz-executor220 state:D stack:29048 pid: 7224 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7237 can't die for more than 150 seconds.
task:syz-executor220 state:D stack:29048 pid: 7237 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7241 can't die for more than 150 seconds.
task:syz-executor220 state:D stack:28912 pid: 7241 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7253 can't die for more than 151 seconds.
task:syz-executor220 state:D stack:29048 pid: 7253 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7267 can't die for more than 151 seconds.
task:syz-executor220 state:D stack:29048 pid: 7267 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7270 can't die for more than 151 seconds.
task:syz-executor220 state:D stack:28912 pid: 7270 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7281 can't die for more than 152 seconds.
task:syz-executor220 state:D stack:28912 pid: 7281 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7293 can't die for more than 152 seconds.
task:syz-executor220 state:D stack:28912 pid: 7293 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7310 can't die for more than 152 seconds.
task:syz-executor220 state:D stack:28648 pid: 7310 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7314 can't die for more than 152 seconds.
task:syz-executor220 state:D stack:29048 pid: 7314 ppid: 6888 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7342 can't die for more than 153 seconds.
task:syz-executor220 state:D stack:29048 pid: 7342 ppid: 6887 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:3772 [inline]
__schedule+0xec5/0x2200 kernel/sched/core.c:4521
schedule+0xcf/0x270 kernel/sched/core.c:4599
request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
__fuse_request_send fs/fuse/dev.c:421 [inline]
fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
fuse_update_get_attr fs/fuse/dir.c:988 [inline]
fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
vfs_getattr fs/stat.c:124 [inline]
vfs_statx+0x18d/0x390 fs/stat.c:189
vfs_fstatat fs/stat.c:207 [inline]
vfs_stat include/linux/fs.h:3148 [inline]
__do_sys_newstat+0x91/0x110 fs/stat.c:349
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x446c99
Code: Bad RIP value.
RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
INFO: task syz-executor220:7349 can't die for more than 153 seconds.
task:syz-executor220 state:D stack:29048 pid: 7349 ppid: 6888 flags:0x00004004
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: INFO: task can't die in request_wait_answer
2020-10-05 4:10 ` syzbot
@ 2020-10-07 20:58 ` Qian Cai
0 siblings, 0 replies; 3+ messages in thread
From: Qian Cai @ 2020-10-07 20:58 UTC (permalink / raw)
To: syzbot; +Cc: linux-fsdevel, linux-kernel, miklos, syzkaller-bugs
On Sun, 2020-10-04 at 21:10 -0700, syzbot wrote:
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: 2172e358 Add linux-next specific files for 20201002
> git tree: linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=1596c7a3900000
> kernel config: https://syzkaller.appspot.com/x/.config?x=70698f530a7e856f
> dashboard link: https://syzkaller.appspot.com/bug?extid=ea48ca29949b1820e745
> compiler: gcc (GCC) 10.1.0-syz 20200507
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16e1c8e7900000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10a166af900000
Looking through the reproducer, it has all those privileged operations like
mount etc which seems indicating that syzkaller tries to run as a root user
which could easily screw up things like those soft-lockups.
So far, I can only reproduce this as a root user and then also need to Ctrl-C
the reproducer in order for the kernel to stuck in request_wait_answer() forever
probably because no response from the server (the server was already exited).
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+ea48ca29949b1820e745@syzkaller.appspotmail.com
>
> INFO: task syz-executor220:7040 can't die for more than 143 seconds.
> task:syz-executor220 state:D stack:28792 pid: 7040 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7040 blocked for more than 143 seconds.
> Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> task:syz-executor220 state:D stack:28792 pid: 7040 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7044 can't die for more than 143 seconds.
> task:syz-executor220 state:D stack:28752 pid: 7044 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7044 blocked for more than 144 seconds.
> Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> task:syz-executor220 state:D stack:28752 pid: 7044 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7066 can't die for more than 144 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7066 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7066 blocked for more than 144 seconds.
> Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> task:syz-executor220 state:D stack:29048 pid: 7066 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7071 can't die for more than 144 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7071 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7071 blocked for more than 145 seconds.
> Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> task:syz-executor220 state:D stack:29048 pid: 7071 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7087 can't die for more than 145 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7087 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7087 blocked for more than 145 seconds.
> Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> task:syz-executor220 state:D stack:29048 pid: 7087 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7097 can't die for more than 145 seconds.
> task:syz-executor220 state:D stack:28912 pid: 7097 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7097 blocked for more than 146 seconds.
> Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> task:syz-executor220 state:D stack:28912 pid: 7097 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7110 can't die for more than 146 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7110 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7110 blocked for more than 146 seconds.
> Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> task:syz-executor220 state:D stack:29048 pid: 7110 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7111 can't die for more than 147 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7111 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7111 blocked for more than 147 seconds.
> Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> task:syz-executor220 state:D stack:29048 pid: 7111 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7128 can't die for more than 147 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7128 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7128 blocked for more than 147 seconds.
> Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> task:syz-executor220 state:D stack:29048 pid: 7128 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7136 can't die for more than 148 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7136 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7136 blocked for more than 148 seconds.
> Not tainted 5.9.0-rc7-next-20201002-syzkaller #0
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> task:syz-executor220 state:D stack:29048 pid: 7136 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7149 can't die for more than 148 seconds.
> task:syz-executor220 state:D stack:28912 pid: 7149 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7164 can't die for more than 148 seconds.
> task:syz-executor220 state:D stack:28912 pid: 7164 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7165 can't die for more than 149 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7165 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7178 can't die for more than 149 seconds.
> task:syz-executor220 state:D stack:28912 pid: 7178 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7192 can't die for more than 149 seconds.
> task:syz-executor220 state:D stack:28912 pid: 7192 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7199 can't die for more than 149 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7199 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7215 can't die for more than 150 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7215 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7224 can't die for more than 150 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7224 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7237 can't die for more than 150 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7237 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7241 can't die for more than 150 seconds.
> task:syz-executor220 state:D stack:28912 pid: 7241 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7253 can't die for more than 151 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7253 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7267 can't die for more than 151 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7267 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7270 can't die for more than 151 seconds.
> task:syz-executor220 state:D stack:28912 pid: 7270 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7281 can't die for more than 152 seconds.
> task:syz-executor220 state:D stack:28912 pid: 7281 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7293 can't die for more than 152 seconds.
> task:syz-executor220 state:D stack:28912 pid: 7293 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7310 can't die for more than 152 seconds.
> task:syz-executor220 state:D stack:28648 pid: 7310 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7314 can't die for more than 152 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7314 ppid: 6888
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7342 can't die for more than 153 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7342 ppid: 6887
> flags:0x00004004
> Call Trace:
> context_switch kernel/sched/core.c:3772 [inline]
> __schedule+0xec5/0x2200 kernel/sched/core.c:4521
> schedule+0xcf/0x270 kernel/sched/core.c:4599
> request_wait_answer+0x505/0x7f0 fs/fuse/dev.c:402
> __fuse_request_send fs/fuse/dev.c:421 [inline]
> fuse_simple_request+0x526/0xc10 fs/fuse/dev.c:503
> fuse_do_getattr+0x226/0xc40 fs/fuse/dir.c:952
> fuse_update_get_attr fs/fuse/dir.c:988 [inline]
> fuse_getattr+0x37f/0x430 fs/fuse/dir.c:1723
> vfs_getattr_nosec+0x246/0x2e0 fs/stat.c:87
> vfs_getattr fs/stat.c:124 [inline]
> vfs_statx+0x18d/0x390 fs/stat.c:189
> vfs_fstatat fs/stat.c:207 [inline]
> vfs_stat include/linux/fs.h:3148 [inline]
> __do_sys_newstat+0x91/0x110 fs/stat.c:349
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xa9
> RIP: 0033:0x446c99
> Code: Bad RIP value.
> RSP: 002b:00007fafe2cfedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000004
> RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446c99
> RDX: 0000000000446c99 RSI: 0000000000000000 RDI: 00000000200004c0
> RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
> R13: 00007fff48a82c7f R14: 00007fafe2cff9c0 R15: 0000000000000000
> INFO: task syz-executor220:7349 can't die for more than 153 seconds.
> task:syz-executor220 state:D stack:29048 pid: 7349 ppid: 6888
> flags:0x00004004
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2020-10-07 20:58 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-09-23 12:48 INFO: task can't die in request_wait_answer syzbot
2020-10-05 4:10 ` syzbot
2020-10-07 20:58 ` Qian Cai
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