* linux-next: kernel BUG at mm/vmalloc.c:463!
@ 2016-12-12 2:55 Andrei Vagin
2016-12-12 6:04 ` Andrei Vagin
0 siblings, 1 reply; 6+ messages in thread
From: Andrei Vagin @ 2016-12-12 2:55 UTC (permalink / raw)
To: linux-mm, Cyrill Gorcunov
Hi,
CRIU tests triggered a kernel bug:
[ 80.470890] kernel BUG at mm/vmalloc.c:463!
[ 80.471007] invalid opcode: 0000 [#1] SMP
[ 80.471007] Modules linked in:
[ 80.471007] CPU: 0 PID: 14795 Comm: criu Not tainted
4.9.0-rc8-next-20161209 #114
[ 80.471007] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS 1.9.1-1.fc24 04/01/2014
[ 80.471007] task: ffff8bc26c34a680 task.stack: ffff9c6a43d58000
[ 80.471007] RIP: 0010:alloc_vmap_area+0x366/0x390
[ 80.471007] RSP: 0018:ffff9c6a43d5bc58 EFLAGS: 00010206
[ 80.471007] RAX: ffff8bc272ce8000 RBX: ffff8bc267b11420 RCX: 0000000000000000
[ 80.471007] RDX: ffffffff8b222bb3 RSI: 0000000000000000 RDI: ffffffff8bc7e7e0
[ 80.471007] RBP: ffff9c6a43d5bcb0 R08: ffffffff8bc7e7d0 R09: 0000000000000000
[ 80.471007] R10: 0000000000000001 R11: 0000000000000000 R12: ffff9c6a40000000
[ 80.471007] R13: ffff9c6a40000000 R14: ffffffffffffc000 R15: 0000000000003fff
[ 80.471007] FS: 00007fac30a4f800(0000) GS:ffff8bc27fc00000(0000)
knlGS:0000000000000000
[ 80.471007] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 80.471007] CR2: 00000000006fc618 CR3: 000000012ffd9000 CR4: 00000000003406f0
[ 80.471007] DR0: 0000000000010130 DR1: 0000000000000000 DR2: 0000000000000000
[ 80.471007] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[ 80.471007] Call Trace:
[ 80.471007] __get_vm_area_node+0xb7/0x170
[ 80.471007] __vmalloc_node_range+0x73/0x290
[ 80.471007] ? _do_fork+0xf3/0x6f0
[ 80.471007] ? copy_process.part.31+0x12a/0x20c0
[ 80.471007] copy_process.part.31+0x793/0x20c0
[ 80.471007] ? _do_fork+0xf3/0x6f0
[ 80.471007] _do_fork+0xf3/0x6f0
[ 80.471007] ? __might_fault+0x8c/0xa0
[ 80.471007] ? __might_fault+0x43/0xa0
[ 80.471007] ? trace_hardirqs_on_caller+0xf5/0x1b0
[ 80.471007] SyS_clone+0x19/0x20
[ 80.471007] do_syscall_64+0x6c/0x1f0
[ 80.471007] entry_SYSCALL64_slow_path+0x25/0x25
[ 80.471007] RIP: 0033:0x7fac2f6b6941
[ 80.471007] RSP: 002b:00007ffdb42f3c30 EFLAGS: 00000246 ORIG_RAX:
0000000000000038
[ 80.471007] RAX: ffffffffffffffda RBX: 00007ffdb42f3c30 RCX: 00007fac2f6b6941
[ 80.471007] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
[ 80.471007] RBP: 00007ffdb42f3c80 R08: 00007fac30a4f800 R09: 000000000000001c
[ 80.471007] R10: 00007fac30a4fad0 R11: 0000000000000246 R12: 0000000000000000
[ 80.471007] R13: 0000000000000020 R14: 0000000000000000 R15: 0000000000000000
[ 80.471007] Code: 18 97 01 e8 1d 72 5a 00 48 8b 03 4c 85 f8 75 19
49 39 c5 77 16 48 8b 45 a8 48 8b 5d b0 48 3b 58 08 0f 83 5e ff ff ff
0f 0b 0f 0b <0f> 0b e8 23 c7 e6 ff 48 89 3d 24 18 97 01 e9 cd fe ff ff
4c 89
[ 80.471007] RIP: alloc_vmap_area+0x366/0x390 RSP: ffff9c6a43d5bc58
[ 80.506584] ---[ end trace 14dbfb61a09961b9 ]---
Steps to reproduce:
$ apt-get install gcc make protobuf-c-compiler libprotobuf-c0-dev libaio-dev \
libprotobuf-dev protobuf-compiler python-ipaddr libcap-dev \
libnl-3-dev gdb bash python-protobuf
$ git clone https://github.com/xemul/criu.git
$ cd criu
$ make
$ python test/zdtm.py run -a -p 4
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: linux-next: kernel BUG at mm/vmalloc.c:463!
2016-12-12 2:55 linux-next: kernel BUG at mm/vmalloc.c:463! Andrei Vagin
@ 2016-12-12 6:04 ` Andrei Vagin
2016-12-12 6:51 ` Eric W. Biederman
0 siblings, 1 reply; 6+ messages in thread
From: Andrei Vagin @ 2016-12-12 6:04 UTC (permalink / raw)
To: linux-mm, Cyrill Gorcunov, Eric W. Biederman
On Sun, Dec 11, 2016 at 6:55 PM, Andrei Vagin <avagin@gmail.com> wrote:
> Hi,
>
> CRIU tests triggered a kernel bug:
I''ve booted this kernel with slub_debug=FZ and now I see these messages:
[ 119.130447] BUG kmalloc-512 (Not tainted): Freepointer corrupt
[ 119.130447] -----------------------------------------------------------------------------
[ 119.130447]
[ 119.130447] Disabling lock debugging due to kernel taint
[ 119.130447] INFO: Allocated in setup_userns_sysctls+0x44/0xd0
age=1588 cpu=1 pid=7327
[ 119.130447] ___slab_alloc+0x557/0x5c0
[ 119.130447] __slab_alloc+0x51/0x90
[ 119.130447] __kmalloc_track_caller+0x213/0x2e0
[ 119.130447] kmemdup+0x20/0x50
[ 119.130447] setup_userns_sysctls+0x44/0xd0
[ 119.130447] create_user_ns+0x287/0x380
[ 119.130447] copy_creds+0xf3/0x130
[ 119.130447] copy_process.part.32+0x316/0x20c0
[ 119.130447] _do_fork+0xf3/0x6f0
[ 119.130447] SyS_clone+0x19/0x20
[ 119.130447] do_syscall_64+0x6c/0x1f0
[ 119.130447] return_from_SYSCALL_64+0x0/0x7a
[ 119.130447] INFO: Freed in load_elf_binary+0xa4f/0x1690 age=1589
cpu=0 pid=7326
[ 119.130447] __slab_free+0x1ed/0x370
[ 119.130447] kfree+0x20d/0x290
[ 119.130447] load_elf_binary+0xa4f/0x1690
[ 119.130447] search_binary_handler+0xa1/0x200
[ 119.130447] do_execveat_common.isra.35+0x6f5/0xa10
[ 119.130447] SyS_execve+0x3a/0x50
[ 119.130447] do_syscall_64+0x6c/0x1f0
[ 119.130447] return_from_SYSCALL_64+0x0/0x7a
[ 119.130447] INFO: Slab 0xfffffaeb84dba700 objects=19 used=17
fp=0xffff950b36e9eb18 flags=0x2fffc000004081
[ 119.130447] INFO: Object 0xffff950b36e9c358 @offset=856 fp=0xffff950b29c90258
[ 119.130447]
[ 119.130447] Redzone ffff950b36e9c350: cc cc cc cc cc cc cc cc
........
[ 119.130447] Object ffff950b36e9c358: 51 0c 9f 97 ff ff ff ff 38 02
c9 29 0b 95 ff ff Q.......8..)....
[ 119.130447] Object ffff950b36e9c368: 04 00 00 00 a4 01 00 00 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c378: 00 a9 09 97 ff ff ff ff 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c388: e0 27 ec 97 ff ff ff ff 40 33
c5 97 ff ff ff ff .'......@3......
[ 119.130447] Object ffff950b36e9c398: 65 0c 9f 97 ff ff ff ff 3c 02
c9 29 0b 95 ff ff e.......<..)....
[ 119.130447] Object ffff950b36e9c3a8: 04 00 00 00 a4 01 00 00 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c3b8: 00 a9 09 97 ff ff ff ff 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c3c8: e0 27 ec 97 ff ff ff ff 40 33
c5 97 ff ff ff ff .'......@3......
[ 119.130447] Object ffff950b36e9c3d8: 78 0c 9f 97 ff ff ff ff 40 02
c9 29 0b 95 ff ff x.......@..)....
[ 119.130447] Object ffff950b36e9c3e8: 04 00 00 00 a4 01 00 00 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c3f8: 00 a9 09 97 ff ff ff ff 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c408: e0 27 ec 97 ff ff ff ff 40 33
c5 97 ff ff ff ff .'......@3......
[ 119.130447] Object ffff950b36e9c418: 8b 0c 9f 97 ff ff ff ff 44 02
c9 29 0b 95 ff ff ........D..)....
[ 119.130447] Object ffff950b36e9c428: 04 00 00 00 a4 01 00 00 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c438: 00 a9 09 97 ff ff ff ff 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c448: e0 27 ec 97 ff ff ff ff 40 33
c5 97 ff ff ff ff .'......@3......
[ 119.130447] Object ffff950b36e9c458: 9e 0c 9f 97 ff ff ff ff 48 02
c9 29 0b 95 ff ff ........H..)....
[ 119.130447] Object ffff950b36e9c468: 04 00 00 00 a4 01 00 00 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c478: 00 a9 09 97 ff ff ff ff 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c488: e0 27 ec 97 ff ff ff ff 40 33
c5 97 ff ff ff ff .'......@3......
[ 119.130447] Object ffff950b36e9c498: b1 0c 9f 97 ff ff ff ff 4c 02
c9 29 0b 95 ff ff ........L..)....
[ 119.130447] Object ffff950b36e9c4a8: 04 00 00 00 a4 01 00 00 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c4b8: 00 a9 09 97 ff ff ff ff 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c4c8: e0 27 ec 97 ff ff ff ff 40 33
c5 97 ff ff ff ff .'......@3......
[ 119.130447] Object ffff950b36e9c4d8: c4 0c 9f 97 ff ff ff ff 50 02
c9 29 0b 95 ff ff ........P..)....
[ 119.130447] Object ffff950b36e9c4e8: 04 00 00 00 a4 01 00 00 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c4f8: 00 a9 09 97 ff ff ff ff 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c508: e0 27 ec 97 ff ff ff ff 40 33
c5 97 ff ff ff ff .'......@3......
[ 119.130447] Object ffff950b36e9c518: 00 00 00 00 00 00 00 00 54 02
c9 29 0b 95 ff ff ........T..)....
[ 119.130447] Object ffff950b36e9c528: 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c538: 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 ................
[ 119.130447] Object ffff950b36e9c548: 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 ................
[ 119.130447] Redzone ffff950b36e9c558: cc cc cc cc cc cc cc cc
........
[ 119.130447] Padding ffff950b36e9c698: 5a 5a 5a 5a 5a 5a 5a 5a
ZZZZZZZZ
[ 119.130447] CPU: 1 PID: 170 Comm: kworker/1:2 Tainted: G B
4.9.0-rc8-11553-g59f68472-dirty #117
[ 119.130447] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS 1.9.1-1.fc24 04/01/2014
[ 119.130447] Workqueue: events free_user_ns
[ 119.130447] Call Trace:
[ 119.130447] dump_stack+0x86/0xc3
[ 119.130447] print_trailer+0x15a/0x250
[ 119.130447] check_object+0x160/0x280
[ 119.130447] free_debug_processing+0x161/0x3d0
[ 119.130447] ? retire_userns_sysctls+0x33/0x40
[ 119.130447] __slab_free+0x1ed/0x370
[ 119.130447] ? debug_lockdep_rcu_enabled+0x1d/0x20
[ 119.130447] ? mark_held_locks+0x6f/0xa0
[ 119.130447] ? kfree+0xcd/0x290
[ 119.130447] ? retire_userns_sysctls+0x33/0x40
[ 119.130447] ? retire_userns_sysctls+0x33/0x40
[ 119.130447] kfree+0x20d/0x290
[ 119.130447] retire_userns_sysctls+0x33/0x40
[ 119.130447] free_user_ns+0x2b/0x70
[ 119.130447] process_one_work+0x212/0x6c0
[ 119.130447] ? process_one_work+0x197/0x6c0
[ 119.130447] worker_thread+0x4e/0x4a0
[ 119.130447] ? process_one_work+0x6c0/0x6c0
[ 119.130447] kthread+0xff/0x120
[ 119.130447] ? kthread_park+0x60/0x60
[ 119.130447] ret_from_fork+0x2a/0x40
[ 119.213921] FIX kmalloc-512: Object at 0xffff950b36e9c358 not freed
>
> [ 80.470890] kernel BUG at mm/vmalloc.c:463!
> [ 80.471007] invalid opcode: 0000 [#1] SMP
> [ 80.471007] Modules linked in:
> [ 80.471007] CPU: 0 PID: 14795 Comm: criu Not tainted
> 4.9.0-rc8-next-20161209 #114
> [ 80.471007] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
> BIOS 1.9.1-1.fc24 04/01/2014
> [ 80.471007] task: ffff8bc26c34a680 task.stack: ffff9c6a43d58000
> [ 80.471007] RIP: 0010:alloc_vmap_area+0x366/0x390
> [ 80.471007] RSP: 0018:ffff9c6a43d5bc58 EFLAGS: 00010206
> [ 80.471007] RAX: ffff8bc272ce8000 RBX: ffff8bc267b11420 RCX: 0000000000000000
> [ 80.471007] RDX: ffffffff8b222bb3 RSI: 0000000000000000 RDI: ffffffff8bc7e7e0
> [ 80.471007] RBP: ffff9c6a43d5bcb0 R08: ffffffff8bc7e7d0 R09: 0000000000000000
> [ 80.471007] R10: 0000000000000001 R11: 0000000000000000 R12: ffff9c6a40000000
> [ 80.471007] R13: ffff9c6a40000000 R14: ffffffffffffc000 R15: 0000000000003fff
> [ 80.471007] FS: 00007fac30a4f800(0000) GS:ffff8bc27fc00000(0000)
> knlGS:0000000000000000
> [ 80.471007] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 80.471007] CR2: 00000000006fc618 CR3: 000000012ffd9000 CR4: 00000000003406f0
> [ 80.471007] DR0: 0000000000010130 DR1: 0000000000000000 DR2: 0000000000000000
> [ 80.471007] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
> [ 80.471007] Call Trace:
> [ 80.471007] __get_vm_area_node+0xb7/0x170
> [ 80.471007] __vmalloc_node_range+0x73/0x290
> [ 80.471007] ? _do_fork+0xf3/0x6f0
> [ 80.471007] ? copy_process.part.31+0x12a/0x20c0
> [ 80.471007] copy_process.part.31+0x793/0x20c0
> [ 80.471007] ? _do_fork+0xf3/0x6f0
> [ 80.471007] _do_fork+0xf3/0x6f0
> [ 80.471007] ? __might_fault+0x8c/0xa0
> [ 80.471007] ? __might_fault+0x43/0xa0
> [ 80.471007] ? trace_hardirqs_on_caller+0xf5/0x1b0
> [ 80.471007] SyS_clone+0x19/0x20
> [ 80.471007] do_syscall_64+0x6c/0x1f0
> [ 80.471007] entry_SYSCALL64_slow_path+0x25/0x25
> [ 80.471007] RIP: 0033:0x7fac2f6b6941
> [ 80.471007] RSP: 002b:00007ffdb42f3c30 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000038
> [ 80.471007] RAX: ffffffffffffffda RBX: 00007ffdb42f3c30 RCX: 00007fac2f6b6941
> [ 80.471007] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
> [ 80.471007] RBP: 00007ffdb42f3c80 R08: 00007fac30a4f800 R09: 000000000000001c
> [ 80.471007] R10: 00007fac30a4fad0 R11: 0000000000000246 R12: 0000000000000000
> [ 80.471007] R13: 0000000000000020 R14: 0000000000000000 R15: 0000000000000000
> [ 80.471007] Code: 18 97 01 e8 1d 72 5a 00 48 8b 03 4c 85 f8 75 19
> 49 39 c5 77 16 48 8b 45 a8 48 8b 5d b0 48 3b 58 08 0f 83 5e ff ff ff
> 0f 0b 0f 0b <0f> 0b e8 23 c7 e6 ff 48 89 3d 24 18 97 01 e9 cd fe ff ff
> 4c 89
> [ 80.471007] RIP: alloc_vmap_area+0x366/0x390 RSP: ffff9c6a43d5bc58
> [ 80.506584] ---[ end trace 14dbfb61a09961b9 ]---
>
>
> Steps to reproduce:
> $ apt-get install gcc make protobuf-c-compiler libprotobuf-c0-dev libaio-dev \
> libprotobuf-dev protobuf-compiler python-ipaddr libcap-dev \
> libnl-3-dev gdb bash python-protobuf
> $ git clone https://github.com/xemul/criu.git
> $ cd criu
> $ make
> $ python test/zdtm.py run -a -p 4
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: linux-next: kernel BUG at mm/vmalloc.c:463!
2016-12-12 6:04 ` Andrei Vagin
@ 2016-12-12 6:51 ` Eric W. Biederman
2016-12-12 18:55 ` Andrei Vagin
0 siblings, 1 reply; 6+ messages in thread
From: Eric W. Biederman @ 2016-12-12 6:51 UTC (permalink / raw)
To: Andrei Vagin; +Cc: linux-mm, Cyrill Gorcunov
Andrei Vagin <avagin@gmail.com> writes:
> On Sun, Dec 11, 2016 at 6:55 PM, Andrei Vagin <avagin@gmail.com> wrote:
>> Hi,
>>
>> CRIU tests triggered a kernel bug:
>
> I''ve booted this kernel with slub_debug=FZ and now I see these
> messages:
I think I have dropped the cause of this corruption from my linux-next
tree, and hopefully from linux-next.
I believe this was: "inotify: Convert to using per-namespace limits"
If you could verify dropping/reverting that patch from linux-next causes
this failure to go away I would appreciate.
I am quite puzzled why that patch causes heap corruption but it seems clear
it does.
If you can trigger this problem without that patch I would really
appreciate knowing.
Thank you,
Eric
> [ 119.130447] BUG kmalloc-512 (Not tainted): Freepointer corrupt
> [ 119.130447] -----------------------------------------------------------------------------
> [ 119.130447]
> [ 119.130447] Disabling lock debugging due to kernel taint
> [ 119.130447] INFO: Allocated in setup_userns_sysctls+0x44/0xd0
> age=1588 cpu=1 pid=7327
> [ 119.130447] ___slab_alloc+0x557/0x5c0
> [ 119.130447] __slab_alloc+0x51/0x90
> [ 119.130447] __kmalloc_track_caller+0x213/0x2e0
> [ 119.130447] kmemdup+0x20/0x50
> [ 119.130447] setup_userns_sysctls+0x44/0xd0
> [ 119.130447] create_user_ns+0x287/0x380
> [ 119.130447] copy_creds+0xf3/0x130
> [ 119.130447] copy_process.part.32+0x316/0x20c0
> [ 119.130447] _do_fork+0xf3/0x6f0
> [ 119.130447] SyS_clone+0x19/0x20
> [ 119.130447] do_syscall_64+0x6c/0x1f0
> [ 119.130447] return_from_SYSCALL_64+0x0/0x7a
> [ 119.130447] INFO: Freed in load_elf_binary+0xa4f/0x1690 age=1589
> cpu=0 pid=7326
> [ 119.130447] __slab_free+0x1ed/0x370
> [ 119.130447] kfree+0x20d/0x290
> [ 119.130447] load_elf_binary+0xa4f/0x1690
> [ 119.130447] search_binary_handler+0xa1/0x200
> [ 119.130447] do_execveat_common.isra.35+0x6f5/0xa10
> [ 119.130447] SyS_execve+0x3a/0x50
> [ 119.130447] do_syscall_64+0x6c/0x1f0
> [ 119.130447] return_from_SYSCALL_64+0x0/0x7a
> [ 119.130447] INFO: Slab 0xfffffaeb84dba700 objects=19 used=17
> fp=0xffff950b36e9eb18 flags=0x2fffc000004081
> [ 119.130447] INFO: Object 0xffff950b36e9c358 @offset=856 fp=0xffff950b29c90258
> [ 119.130447]
> [ 119.130447] Redzone ffff950b36e9c350: cc cc cc cc cc cc cc cc
> ........
> [ 119.130447] Object ffff950b36e9c358: 51 0c 9f 97 ff ff ff ff 38 02
> c9 29 0b 95 ff ff Q.......8..)....
> [ 119.130447] Object ffff950b36e9c368: 04 00 00 00 a4 01 00 00 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c378: 00 a9 09 97 ff ff ff ff 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c388: e0 27 ec 97 ff ff ff ff 40 33
> c5 97 ff ff ff ff .'......@3......
> [ 119.130447] Object ffff950b36e9c398: 65 0c 9f 97 ff ff ff ff 3c 02
> c9 29 0b 95 ff ff e.......<..)....
> [ 119.130447] Object ffff950b36e9c3a8: 04 00 00 00 a4 01 00 00 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c3b8: 00 a9 09 97 ff ff ff ff 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c3c8: e0 27 ec 97 ff ff ff ff 40 33
> c5 97 ff ff ff ff .'......@3......
> [ 119.130447] Object ffff950b36e9c3d8: 78 0c 9f 97 ff ff ff ff 40 02
> c9 29 0b 95 ff ff x.......@..)....
> [ 119.130447] Object ffff950b36e9c3e8: 04 00 00 00 a4 01 00 00 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c3f8: 00 a9 09 97 ff ff ff ff 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c408: e0 27 ec 97 ff ff ff ff 40 33
> c5 97 ff ff ff ff .'......@3......
> [ 119.130447] Object ffff950b36e9c418: 8b 0c 9f 97 ff ff ff ff 44 02
> c9 29 0b 95 ff ff ........D..)....
> [ 119.130447] Object ffff950b36e9c428: 04 00 00 00 a4 01 00 00 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c438: 00 a9 09 97 ff ff ff ff 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c448: e0 27 ec 97 ff ff ff ff 40 33
> c5 97 ff ff ff ff .'......@3......
> [ 119.130447] Object ffff950b36e9c458: 9e 0c 9f 97 ff ff ff ff 48 02
> c9 29 0b 95 ff ff ........H..)....
> [ 119.130447] Object ffff950b36e9c468: 04 00 00 00 a4 01 00 00 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c478: 00 a9 09 97 ff ff ff ff 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c488: e0 27 ec 97 ff ff ff ff 40 33
> c5 97 ff ff ff ff .'......@3......
> [ 119.130447] Object ffff950b36e9c498: b1 0c 9f 97 ff ff ff ff 4c 02
> c9 29 0b 95 ff ff ........L..)....
> [ 119.130447] Object ffff950b36e9c4a8: 04 00 00 00 a4 01 00 00 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c4b8: 00 a9 09 97 ff ff ff ff 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c4c8: e0 27 ec 97 ff ff ff ff 40 33
> c5 97 ff ff ff ff .'......@3......
> [ 119.130447] Object ffff950b36e9c4d8: c4 0c 9f 97 ff ff ff ff 50 02
> c9 29 0b 95 ff ff ........P..)....
> [ 119.130447] Object ffff950b36e9c4e8: 04 00 00 00 a4 01 00 00 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c4f8: 00 a9 09 97 ff ff ff ff 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c508: e0 27 ec 97 ff ff ff ff 40 33
> c5 97 ff ff ff ff .'......@3......
> [ 119.130447] Object ffff950b36e9c518: 00 00 00 00 00 00 00 00 54 02
> c9 29 0b 95 ff ff ........T..)....
> [ 119.130447] Object ffff950b36e9c528: 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c538: 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Object ffff950b36e9c548: 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 ................
> [ 119.130447] Redzone ffff950b36e9c558: cc cc cc cc cc cc cc cc
> ........
> [ 119.130447] Padding ffff950b36e9c698: 5a 5a 5a 5a 5a 5a 5a 5a
> ZZZZZZZZ
> [ 119.130447] CPU: 1 PID: 170 Comm: kworker/1:2 Tainted: G B
> 4.9.0-rc8-11553-g59f68472-dirty #117
> [ 119.130447] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
> BIOS 1.9.1-1.fc24 04/01/2014
> [ 119.130447] Workqueue: events free_user_ns
> [ 119.130447] Call Trace:
> [ 119.130447] dump_stack+0x86/0xc3
> [ 119.130447] print_trailer+0x15a/0x250
> [ 119.130447] check_object+0x160/0x280
> [ 119.130447] free_debug_processing+0x161/0x3d0
> [ 119.130447] ? retire_userns_sysctls+0x33/0x40
> [ 119.130447] __slab_free+0x1ed/0x370
> [ 119.130447] ? debug_lockdep_rcu_enabled+0x1d/0x20
> [ 119.130447] ? mark_held_locks+0x6f/0xa0
> [ 119.130447] ? kfree+0xcd/0x290
> [ 119.130447] ? retire_userns_sysctls+0x33/0x40
> [ 119.130447] ? retire_userns_sysctls+0x33/0x40
> [ 119.130447] kfree+0x20d/0x290
> [ 119.130447] retire_userns_sysctls+0x33/0x40
> [ 119.130447] free_user_ns+0x2b/0x70
> [ 119.130447] process_one_work+0x212/0x6c0
> [ 119.130447] ? process_one_work+0x197/0x6c0
> [ 119.130447] worker_thread+0x4e/0x4a0
> [ 119.130447] ? process_one_work+0x6c0/0x6c0
> [ 119.130447] kthread+0xff/0x120
> [ 119.130447] ? kthread_park+0x60/0x60
> [ 119.130447] ret_from_fork+0x2a/0x40
> [ 119.213921] FIX kmalloc-512: Object at 0xffff950b36e9c358 not freed
>
>
>>
>> [ 80.470890] kernel BUG at mm/vmalloc.c:463!
>> [ 80.471007] invalid opcode: 0000 [#1] SMP
>> [ 80.471007] Modules linked in:
>> [ 80.471007] CPU: 0 PID: 14795 Comm: criu Not tainted
>> 4.9.0-rc8-next-20161209 #114
>> [ 80.471007] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
>> BIOS 1.9.1-1.fc24 04/01/2014
>> [ 80.471007] task: ffff8bc26c34a680 task.stack: ffff9c6a43d58000
>> [ 80.471007] RIP: 0010:alloc_vmap_area+0x366/0x390
>> [ 80.471007] RSP: 0018:ffff9c6a43d5bc58 EFLAGS: 00010206
>> [ 80.471007] RAX: ffff8bc272ce8000 RBX: ffff8bc267b11420 RCX: 0000000000000000
>> [ 80.471007] RDX: ffffffff8b222bb3 RSI: 0000000000000000 RDI: ffffffff8bc7e7e0
>> [ 80.471007] RBP: ffff9c6a43d5bcb0 R08: ffffffff8bc7e7d0 R09: 0000000000000000
>> [ 80.471007] R10: 0000000000000001 R11: 0000000000000000 R12: ffff9c6a40000000
>> [ 80.471007] R13: ffff9c6a40000000 R14: ffffffffffffc000 R15: 0000000000003fff
>> [ 80.471007] FS: 00007fac30a4f800(0000) GS:ffff8bc27fc00000(0000)
>> knlGS:0000000000000000
>> [ 80.471007] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [ 80.471007] CR2: 00000000006fc618 CR3: 000000012ffd9000 CR4: 00000000003406f0
>> [ 80.471007] DR0: 0000000000010130 DR1: 0000000000000000 DR2: 0000000000000000
>> [ 80.471007] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
>> [ 80.471007] Call Trace:
>> [ 80.471007] __get_vm_area_node+0xb7/0x170
>> [ 80.471007] __vmalloc_node_range+0x73/0x290
>> [ 80.471007] ? _do_fork+0xf3/0x6f0
>> [ 80.471007] ? copy_process.part.31+0x12a/0x20c0
>> [ 80.471007] copy_process.part.31+0x793/0x20c0
>> [ 80.471007] ? _do_fork+0xf3/0x6f0
>> [ 80.471007] _do_fork+0xf3/0x6f0
>> [ 80.471007] ? __might_fault+0x8c/0xa0
>> [ 80.471007] ? __might_fault+0x43/0xa0
>> [ 80.471007] ? trace_hardirqs_on_caller+0xf5/0x1b0
>> [ 80.471007] SyS_clone+0x19/0x20
>> [ 80.471007] do_syscall_64+0x6c/0x1f0
>> [ 80.471007] entry_SYSCALL64_slow_path+0x25/0x25
>> [ 80.471007] RIP: 0033:0x7fac2f6b6941
>> [ 80.471007] RSP: 002b:00007ffdb42f3c30 EFLAGS: 00000246 ORIG_RAX:
>> 0000000000000038
>> [ 80.471007] RAX: ffffffffffffffda RBX: 00007ffdb42f3c30 RCX: 00007fac2f6b6941
>> [ 80.471007] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
>> [ 80.471007] RBP: 00007ffdb42f3c80 R08: 00007fac30a4f800 R09: 000000000000001c
>> [ 80.471007] R10: 00007fac30a4fad0 R11: 0000000000000246 R12: 0000000000000000
>> [ 80.471007] R13: 0000000000000020 R14: 0000000000000000 R15: 0000000000000000
>> [ 80.471007] Code: 18 97 01 e8 1d 72 5a 00 48 8b 03 4c 85 f8 75 19
>> 49 39 c5 77 16 48 8b 45 a8 48 8b 5d b0 48 3b 58 08 0f 83 5e ff ff ff
>> 0f 0b 0f 0b <0f> 0b e8 23 c7 e6 ff 48 89 3d 24 18 97 01 e9 cd fe ff ff
>> 4c 89
>> [ 80.471007] RIP: alloc_vmap_area+0x366/0x390 RSP: ffff9c6a43d5bc58
>> [ 80.506584] ---[ end trace 14dbfb61a09961b9 ]---
>>
>>
>> Steps to reproduce:
>> $ apt-get install gcc make protobuf-c-compiler libprotobuf-c0-dev libaio-dev \
>> libprotobuf-dev protobuf-compiler python-ipaddr libcap-dev \
>> libnl-3-dev gdb bash python-protobuf
>> $ git clone https://github.com/xemul/criu.git
>> $ cd criu
>> $ make
>> $ python test/zdtm.py run -a -p 4
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: linux-next: kernel BUG at mm/vmalloc.c:463!
2016-12-12 6:51 ` Eric W. Biederman
@ 2016-12-12 18:55 ` Andrei Vagin
2016-12-12 19:11 ` Eric W. Biederman
0 siblings, 1 reply; 6+ messages in thread
From: Andrei Vagin @ 2016-12-12 18:55 UTC (permalink / raw)
To: Eric W. Biederman; +Cc: linux-mm, Cyrill Gorcunov
On Sun, Dec 11, 2016 at 10:51 PM, Eric W. Biederman
<ebiederm@xmission.com> wrote:
> Andrei Vagin <avagin@gmail.com> writes:
>
>> On Sun, Dec 11, 2016 at 6:55 PM, Andrei Vagin <avagin@gmail.com> wrote:
>>> Hi,
>>>
>>> CRIU tests triggered a kernel bug:
>>
>> I''ve booted this kernel with slub_debug=FZ and now I see these
>> messages:
>
> I think I have dropped the cause of this corruption from my linux-next
> tree, and hopefully from linux-next.
>
> I believe this was: "inotify: Convert to using per-namespace limits"
> If you could verify dropping/reverting that patch from linux-next causes
> this failure to go away I would appreciate.
>
> I am quite puzzled why that patch causes heap corruption but it seems clear
> it does.
>
> If you can trigger this problem without that patch I would really
> appreciate knowing.
It works without this patch. All tests passed on next-20161212. Thanks!
>
> Thank you,
> Eric
>
>> [ 119.130447] BUG kmalloc-512 (Not tainted): Freepointer corrupt
>> [ 119.130447] -----------------------------------------------------------------------------
>> [ 119.130447]
>> [ 119.130447] Disabling lock debugging due to kernel taint
>> [ 119.130447] INFO: Allocated in setup_userns_sysctls+0x44/0xd0
>> age=1588 cpu=1 pid=7327
>> [ 119.130447] ___slab_alloc+0x557/0x5c0
>> [ 119.130447] __slab_alloc+0x51/0x90
>> [ 119.130447] __kmalloc_track_caller+0x213/0x2e0
>> [ 119.130447] kmemdup+0x20/0x50
>> [ 119.130447] setup_userns_sysctls+0x44/0xd0
>> [ 119.130447] create_user_ns+0x287/0x380
>> [ 119.130447] copy_creds+0xf3/0x130
>> [ 119.130447] copy_process.part.32+0x316/0x20c0
>> [ 119.130447] _do_fork+0xf3/0x6f0
>> [ 119.130447] SyS_clone+0x19/0x20
>> [ 119.130447] do_syscall_64+0x6c/0x1f0
>> [ 119.130447] return_from_SYSCALL_64+0x0/0x7a
>> [ 119.130447] INFO: Freed in load_elf_binary+0xa4f/0x1690 age=1589
>> cpu=0 pid=7326
>> [ 119.130447] __slab_free+0x1ed/0x370
>> [ 119.130447] kfree+0x20d/0x290
>> [ 119.130447] load_elf_binary+0xa4f/0x1690
>> [ 119.130447] search_binary_handler+0xa1/0x200
>> [ 119.130447] do_execveat_common.isra.35+0x6f5/0xa10
>> [ 119.130447] SyS_execve+0x3a/0x50
>> [ 119.130447] do_syscall_64+0x6c/0x1f0
>> [ 119.130447] return_from_SYSCALL_64+0x0/0x7a
>> [ 119.130447] INFO: Slab 0xfffffaeb84dba700 objects=19 used=17
>> fp=0xffff950b36e9eb18 flags=0x2fffc000004081
>> [ 119.130447] INFO: Object 0xffff950b36e9c358 @offset=856 fp=0xffff950b29c90258
>> [ 119.130447]
>> [ 119.130447] Redzone ffff950b36e9c350: cc cc cc cc cc cc cc cc
>> ........
>> [ 119.130447] Object ffff950b36e9c358: 51 0c 9f 97 ff ff ff ff 38 02
>> c9 29 0b 95 ff ff Q.......8..)....
>> [ 119.130447] Object ffff950b36e9c368: 04 00 00 00 a4 01 00 00 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c378: 00 a9 09 97 ff ff ff ff 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c388: e0 27 ec 97 ff ff ff ff 40 33
>> c5 97 ff ff ff ff .'......@3......
>> [ 119.130447] Object ffff950b36e9c398: 65 0c 9f 97 ff ff ff ff 3c 02
>> c9 29 0b 95 ff ff e.......<..)....
>> [ 119.130447] Object ffff950b36e9c3a8: 04 00 00 00 a4 01 00 00 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c3b8: 00 a9 09 97 ff ff ff ff 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c3c8: e0 27 ec 97 ff ff ff ff 40 33
>> c5 97 ff ff ff ff .'......@3......
>> [ 119.130447] Object ffff950b36e9c3d8: 78 0c 9f 97 ff ff ff ff 40 02
>> c9 29 0b 95 ff ff x.......@..)....
>> [ 119.130447] Object ffff950b36e9c3e8: 04 00 00 00 a4 01 00 00 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c3f8: 00 a9 09 97 ff ff ff ff 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c408: e0 27 ec 97 ff ff ff ff 40 33
>> c5 97 ff ff ff ff .'......@3......
>> [ 119.130447] Object ffff950b36e9c418: 8b 0c 9f 97 ff ff ff ff 44 02
>> c9 29 0b 95 ff ff ........D..)....
>> [ 119.130447] Object ffff950b36e9c428: 04 00 00 00 a4 01 00 00 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c438: 00 a9 09 97 ff ff ff ff 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c448: e0 27 ec 97 ff ff ff ff 40 33
>> c5 97 ff ff ff ff .'......@3......
>> [ 119.130447] Object ffff950b36e9c458: 9e 0c 9f 97 ff ff ff ff 48 02
>> c9 29 0b 95 ff ff ........H..)....
>> [ 119.130447] Object ffff950b36e9c468: 04 00 00 00 a4 01 00 00 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c478: 00 a9 09 97 ff ff ff ff 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c488: e0 27 ec 97 ff ff ff ff 40 33
>> c5 97 ff ff ff ff .'......@3......
>> [ 119.130447] Object ffff950b36e9c498: b1 0c 9f 97 ff ff ff ff 4c 02
>> c9 29 0b 95 ff ff ........L..)....
>> [ 119.130447] Object ffff950b36e9c4a8: 04 00 00 00 a4 01 00 00 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c4b8: 00 a9 09 97 ff ff ff ff 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c4c8: e0 27 ec 97 ff ff ff ff 40 33
>> c5 97 ff ff ff ff .'......@3......
>> [ 119.130447] Object ffff950b36e9c4d8: c4 0c 9f 97 ff ff ff ff 50 02
>> c9 29 0b 95 ff ff ........P..)....
>> [ 119.130447] Object ffff950b36e9c4e8: 04 00 00 00 a4 01 00 00 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c4f8: 00 a9 09 97 ff ff ff ff 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c508: e0 27 ec 97 ff ff ff ff 40 33
>> c5 97 ff ff ff ff .'......@3......
>> [ 119.130447] Object ffff950b36e9c518: 00 00 00 00 00 00 00 00 54 02
>> c9 29 0b 95 ff ff ........T..)....
>> [ 119.130447] Object ffff950b36e9c528: 00 00 00 00 00 00 00 00 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c538: 00 00 00 00 00 00 00 00 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Object ffff950b36e9c548: 00 00 00 00 00 00 00 00 00 00
>> 00 00 00 00 00 00 ................
>> [ 119.130447] Redzone ffff950b36e9c558: cc cc cc cc cc cc cc cc
>> ........
>> [ 119.130447] Padding ffff950b36e9c698: 5a 5a 5a 5a 5a 5a 5a 5a
>> ZZZZZZZZ
>> [ 119.130447] CPU: 1 PID: 170 Comm: kworker/1:2 Tainted: G B
>> 4.9.0-rc8-11553-g59f68472-dirty #117
>> [ 119.130447] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
>> BIOS 1.9.1-1.fc24 04/01/2014
>> [ 119.130447] Workqueue: events free_user_ns
>> [ 119.130447] Call Trace:
>> [ 119.130447] dump_stack+0x86/0xc3
>> [ 119.130447] print_trailer+0x15a/0x250
>> [ 119.130447] check_object+0x160/0x280
>> [ 119.130447] free_debug_processing+0x161/0x3d0
>> [ 119.130447] ? retire_userns_sysctls+0x33/0x40
>> [ 119.130447] __slab_free+0x1ed/0x370
>> [ 119.130447] ? debug_lockdep_rcu_enabled+0x1d/0x20
>> [ 119.130447] ? mark_held_locks+0x6f/0xa0
>> [ 119.130447] ? kfree+0xcd/0x290
>> [ 119.130447] ? retire_userns_sysctls+0x33/0x40
>> [ 119.130447] ? retire_userns_sysctls+0x33/0x40
>> [ 119.130447] kfree+0x20d/0x290
>> [ 119.130447] retire_userns_sysctls+0x33/0x40
>> [ 119.130447] free_user_ns+0x2b/0x70
>> [ 119.130447] process_one_work+0x212/0x6c0
>> [ 119.130447] ? process_one_work+0x197/0x6c0
>> [ 119.130447] worker_thread+0x4e/0x4a0
>> [ 119.130447] ? process_one_work+0x6c0/0x6c0
>> [ 119.130447] kthread+0xff/0x120
>> [ 119.130447] ? kthread_park+0x60/0x60
>> [ 119.130447] ret_from_fork+0x2a/0x40
>> [ 119.213921] FIX kmalloc-512: Object at 0xffff950b36e9c358 not freed
>>
>>
>>>
>>> [ 80.470890] kernel BUG at mm/vmalloc.c:463!
>>> [ 80.471007] invalid opcode: 0000 [#1] SMP
>>> [ 80.471007] Modules linked in:
>>> [ 80.471007] CPU: 0 PID: 14795 Comm: criu Not tainted
>>> 4.9.0-rc8-next-20161209 #114
>>> [ 80.471007] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
>>> BIOS 1.9.1-1.fc24 04/01/2014
>>> [ 80.471007] task: ffff8bc26c34a680 task.stack: ffff9c6a43d58000
>>> [ 80.471007] RIP: 0010:alloc_vmap_area+0x366/0x390
>>> [ 80.471007] RSP: 0018:ffff9c6a43d5bc58 EFLAGS: 00010206
>>> [ 80.471007] RAX: ffff8bc272ce8000 RBX: ffff8bc267b11420 RCX: 0000000000000000
>>> [ 80.471007] RDX: ffffffff8b222bb3 RSI: 0000000000000000 RDI: ffffffff8bc7e7e0
>>> [ 80.471007] RBP: ffff9c6a43d5bcb0 R08: ffffffff8bc7e7d0 R09: 0000000000000000
>>> [ 80.471007] R10: 0000000000000001 R11: 0000000000000000 R12: ffff9c6a40000000
>>> [ 80.471007] R13: ffff9c6a40000000 R14: ffffffffffffc000 R15: 0000000000003fff
>>> [ 80.471007] FS: 00007fac30a4f800(0000) GS:ffff8bc27fc00000(0000)
>>> knlGS:0000000000000000
>>> [ 80.471007] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>> [ 80.471007] CR2: 00000000006fc618 CR3: 000000012ffd9000 CR4: 00000000003406f0
>>> [ 80.471007] DR0: 0000000000010130 DR1: 0000000000000000 DR2: 0000000000000000
>>> [ 80.471007] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
>>> [ 80.471007] Call Trace:
>>> [ 80.471007] __get_vm_area_node+0xb7/0x170
>>> [ 80.471007] __vmalloc_node_range+0x73/0x290
>>> [ 80.471007] ? _do_fork+0xf3/0x6f0
>>> [ 80.471007] ? copy_process.part.31+0x12a/0x20c0
>>> [ 80.471007] copy_process.part.31+0x793/0x20c0
>>> [ 80.471007] ? _do_fork+0xf3/0x6f0
>>> [ 80.471007] _do_fork+0xf3/0x6f0
>>> [ 80.471007] ? __might_fault+0x8c/0xa0
>>> [ 80.471007] ? __might_fault+0x43/0xa0
>>> [ 80.471007] ? trace_hardirqs_on_caller+0xf5/0x1b0
>>> [ 80.471007] SyS_clone+0x19/0x20
>>> [ 80.471007] do_syscall_64+0x6c/0x1f0
>>> [ 80.471007] entry_SYSCALL64_slow_path+0x25/0x25
>>> [ 80.471007] RIP: 0033:0x7fac2f6b6941
>>> [ 80.471007] RSP: 002b:00007ffdb42f3c30 EFLAGS: 00000246 ORIG_RAX:
>>> 0000000000000038
>>> [ 80.471007] RAX: ffffffffffffffda RBX: 00007ffdb42f3c30 RCX: 00007fac2f6b6941
>>> [ 80.471007] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
>>> [ 80.471007] RBP: 00007ffdb42f3c80 R08: 00007fac30a4f800 R09: 000000000000001c
>>> [ 80.471007] R10: 00007fac30a4fad0 R11: 0000000000000246 R12: 0000000000000000
>>> [ 80.471007] R13: 0000000000000020 R14: 0000000000000000 R15: 0000000000000000
>>> [ 80.471007] Code: 18 97 01 e8 1d 72 5a 00 48 8b 03 4c 85 f8 75 19
>>> 49 39 c5 77 16 48 8b 45 a8 48 8b 5d b0 48 3b 58 08 0f 83 5e ff ff ff
>>> 0f 0b 0f 0b <0f> 0b e8 23 c7 e6 ff 48 89 3d 24 18 97 01 e9 cd fe ff ff
>>> 4c 89
>>> [ 80.471007] RIP: alloc_vmap_area+0x366/0x390 RSP: ffff9c6a43d5bc58
>>> [ 80.506584] ---[ end trace 14dbfb61a09961b9 ]---
>>>
>>>
>>> Steps to reproduce:
>>> $ apt-get install gcc make protobuf-c-compiler libprotobuf-c0-dev libaio-dev \
>>> libprotobuf-dev protobuf-compiler python-ipaddr libcap-dev \
>>> libnl-3-dev gdb bash python-protobuf
>>> $ git clone https://github.com/xemul/criu.git
>>> $ cd criu
>>> $ make
>>> $ python test/zdtm.py run -a -p 4
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: linux-next: kernel BUG at mm/vmalloc.c:463!
2016-12-12 18:55 ` Andrei Vagin
@ 2016-12-12 19:11 ` Eric W. Biederman
2016-12-13 19:49 ` Eric W. Biederman
0 siblings, 1 reply; 6+ messages in thread
From: Eric W. Biederman @ 2016-12-12 19:11 UTC (permalink / raw)
To: Andrei Vagin; +Cc: linux-mm, Cyrill Gorcunov
Andrei Vagin <avagin@gmail.com> writes:
> On Sun, Dec 11, 2016 at 10:51 PM, Eric W. Biederman
> <ebiederm@xmission.com> wrote:
>> Andrei Vagin <avagin@gmail.com> writes:
>>
>>> On Sun, Dec 11, 2016 at 6:55 PM, Andrei Vagin <avagin@gmail.com> wrote:
>>>> Hi,
>>>>
>>>> CRIU tests triggered a kernel bug:
>>>
>>> I''ve booted this kernel with slub_debug=FZ and now I see these
>>> messages:
>>
>> I think I have dropped the cause of this corruption from my linux-next
>> tree, and hopefully from linux-next.
>>
>> I believe this was: "inotify: Convert to using per-namespace limits"
>> If you could verify dropping/reverting that patch from linux-next causes
>> this failure to go away I would appreciate.
>>
>> I am quite puzzled why that patch causes heap corruption but it seems clear
>> it does.
>>
>> If you can trigger this problem without that patch I would really
>> appreciate knowing.
>
> It works without this patch. All tests passed on next-20161212. Thanks!
Thank you for verifying that.
Eric
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: linux-next: kernel BUG at mm/vmalloc.c:463!
2016-12-12 19:11 ` Eric W. Biederman
@ 2016-12-13 19:49 ` Eric W. Biederman
0 siblings, 0 replies; 6+ messages in thread
From: Eric W. Biederman @ 2016-12-13 19:49 UTC (permalink / raw)
To: Andrei Vagin; +Cc: linux-mm, Cyrill Gorcunov, Nikolay Borisov
ebiederm@xmission.com (Eric W. Biederman) writes:
> Andrei Vagin <avagin@gmail.com> writes:
>
>> On Sun, Dec 11, 2016 at 10:51 PM, Eric W. Biederman
>> <ebiederm@xmission.com> wrote:
>>> Andrei Vagin <avagin@gmail.com> writes:
>>>
>>>> On Sun, Dec 11, 2016 at 6:55 PM, Andrei Vagin <avagin@gmail.com> wrote:
>>>>> Hi,
>>>>>
>>>>> CRIU tests triggered a kernel bug:
>>>>
>>>> I''ve booted this kernel with slub_debug=FZ and now I see these
>>>> messages:
Andrei, are the CRIU tests that failed part of the normal regression
tests for CRIU that Nikolay Borisov can run so he can reproduce this
failure and figure out what is wrong with his code?
Eric
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2016-12-13 19:52 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-12-12 2:55 linux-next: kernel BUG at mm/vmalloc.c:463! Andrei Vagin
2016-12-12 6:04 ` Andrei Vagin
2016-12-12 6:51 ` Eric W. Biederman
2016-12-12 18:55 ` Andrei Vagin
2016-12-12 19:11 ` Eric W. Biederman
2016-12-13 19:49 ` Eric W. Biederman
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