* [syzbot] linux-next test error: WARNING in __mod_memcg_lruvec_state
@ 2022-02-26 7:23 syzbot
2022-02-28 6:09 ` Andrew Morton
0 siblings, 1 reply; 4+ messages in thread
From: syzbot @ 2022-02-26 7:23 UTC (permalink / raw)
To: akpm, cgroups, hannes, linux-kernel, linux-mm, linux-next,
mhocko, roman.gushchin, sfr, syzkaller-bugs
Hello,
syzbot found the following issue on:
HEAD commit: 06aeb1495c39 Add linux-next specific files for 20220225
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=17a69c8e700000
kernel config: https://syzkaller.appspot.com/x/.config?x=8d8bf144f45f9b3
dashboard link: https://syzkaller.appspot.com/bug?extid=a526c269335f529d25c8
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+a526c269335f529d25c8@syzkaller.appspotmail.com
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3590 at mm/memcontrol.c:749 __mod_memcg_lruvec_state+0x1ab/0x220
Modules linked in:
CPU: 1 PID: 3590 Comm: syz-fuzzer Not tainted 5.17.0-rc5-next-20220225-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__mod_memcg_lruvec_state+0x1ab/0x220
Code: bb 23 92 0e 48 c7 c7 e0 b6 d9 89 e8 af d9 95 07 65 c7 05 f4 c8 37 7e 00 00 00 00 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 <0f> 0b e9 a6 fe ff ff 4c 89 f6 48 c7 c7 60 63 ee 8b e8 8f d3 45 02
RSP: 0000:ffffc900039efbc0 EFLAGS: 00010202
RAX: 0000000000000206 RBX: 0000000000000200 RCX: ffffffff81aafa53
RDX: 1ffff1100218fa8d RSI: 000000000000001c RDI: ffff888010c7d468
RBP: ffff888010c7d000 R08: 0000000000000001 R09: ffffffff8ba144e7
R10: fffffbfff174289c R11: 0000000000000001 R12: 000000000000001c
R13: ffff88813fe38000 R14: ffff88813fe38000 R15: ffff88813fffa000
FS: 000000c0001d2c90(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000e00000 CR3: 000000001cfb0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__mod_lruvec_page_state+0x1e5/0x3e0
page_add_new_anon_rmap+0x2e5/0x930
do_huge_pmd_anonymous_page+0x102c/0x2350
__handle_mm_fault+0x2a66/0x4110
handle_mm_fault+0x1c8/0x790
do_user_addr_fault+0x489/0x11c0
exc_page_fault+0x9e/0x180
asm_exc_page_fault+0x1e/0x30
RIP: 0033:0x465e33
Code: 00 00 c5 fe 6f 06 c5 fe 6f 4e 20 c5 fe 6f 56 40 c5 fe 6f 5e 60 48 81 c6 80 00 00 00 c5 fd e7 07 c5 fd e7 4f 20 c5 fd e7 57 40 <c5> fd e7 5f 60 48 81 c7 80 00 00 00 48 81 eb 80 00 00 00 77 b5 0f
RSP: 002b:000000c0003533b8 EFLAGS: 00010202
RAX: 000000c000db4000 RBX: 0000000000423fe0 RCX: 000000c001224000
RDX: 000000c001224001 RSI: 000000c000990020 RDI: 000000c000dfffa0
RBP: 000000c000353418 R08: 000000c000db4000 R09: 0000000000000000
R10: 0000000000000020 R11: 0000000000000206 R12: 000000c000243f18
R13: 000000000000002e R14: 000000c0000001a0 R15: 0000000000000000
</TASK>
---
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:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [syzbot] linux-next test error: WARNING in __mod_memcg_lruvec_state
2022-02-26 7:23 [syzbot] linux-next test error: WARNING in __mod_memcg_lruvec_state syzbot
@ 2022-02-28 6:09 ` Andrew Morton
2022-02-28 11:06 ` Sebastian Andrzej Siewior
0 siblings, 1 reply; 4+ messages in thread
From: Andrew Morton @ 2022-02-28 6:09 UTC (permalink / raw)
To: syzbot
Cc: cgroups, hannes, linux-kernel, linux-mm, linux-next, mhocko,
roman.gushchin, sfr, syzkaller-bugs, Sebastian Andrzej Siewior
(cc bigeasy)
WARN_ON_ONCE(!irqs_disabled());
in __mod_memcg_lruvec_state(), methinks.
On Fri, 25 Feb 2022 23:23:23 -0800 syzbot <syzbot+a526c269335f529d25c8@syzkaller.appspotmail.com> wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 06aeb1495c39 Add linux-next specific files for 20220225
> git tree: linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=17a69c8e700000
> kernel config: https://syzkaller.appspot.com/x/.config?x=8d8bf144f45f9b3
> dashboard link: https://syzkaller.appspot.com/bug?extid=a526c269335f529d25c8
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+a526c269335f529d25c8@syzkaller.appspotmail.com
>
> ------------[ cut here ]------------
> WARNING: CPU: 1 PID: 3590 at mm/memcontrol.c:749 __mod_memcg_lruvec_state+0x1ab/0x220
> Modules linked in:
> CPU: 1 PID: 3590 Comm: syz-fuzzer Not tainted 5.17.0-rc5-next-20220225-syzkaller #0
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
> RIP: 0010:__mod_memcg_lruvec_state+0x1ab/0x220
> Code: bb 23 92 0e 48 c7 c7 e0 b6 d9 89 e8 af d9 95 07 65 c7 05 f4 c8 37 7e 00 00 00 00 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 <0f> 0b e9 a6 fe ff ff 4c 89 f6 48 c7 c7 60 63 ee 8b e8 8f d3 45 02
> RSP: 0000:ffffc900039efbc0 EFLAGS: 00010202
> RAX: 0000000000000206 RBX: 0000000000000200 RCX: ffffffff81aafa53
> RDX: 1ffff1100218fa8d RSI: 000000000000001c RDI: ffff888010c7d468
> RBP: ffff888010c7d000 R08: 0000000000000001 R09: ffffffff8ba144e7
> R10: fffffbfff174289c R11: 0000000000000001 R12: 000000000000001c
> R13: ffff88813fe38000 R14: ffff88813fe38000 R15: ffff88813fffa000
> FS: 000000c0001d2c90(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 000000c000e00000 CR3: 000000001cfb0000 CR4: 00000000003506e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> Call Trace:
> <TASK>
> __mod_lruvec_page_state+0x1e5/0x3e0
> page_add_new_anon_rmap+0x2e5/0x930
> do_huge_pmd_anonymous_page+0x102c/0x2350
> __handle_mm_fault+0x2a66/0x4110
> handle_mm_fault+0x1c8/0x790
> do_user_addr_fault+0x489/0x11c0
> exc_page_fault+0x9e/0x180
> asm_exc_page_fault+0x1e/0x30
> RIP: 0033:0x465e33
> Code: 00 00 c5 fe 6f 06 c5 fe 6f 4e 20 c5 fe 6f 56 40 c5 fe 6f 5e 60 48 81 c6 80 00 00 00 c5 fd e7 07 c5 fd e7 4f 20 c5 fd e7 57 40 <c5> fd e7 5f 60 48 81 c7 80 00 00 00 48 81 eb 80 00 00 00 77 b5 0f
> RSP: 002b:000000c0003533b8 EFLAGS: 00010202
> RAX: 000000c000db4000 RBX: 0000000000423fe0 RCX: 000000c001224000
> RDX: 000000c001224001 RSI: 000000c000990020 RDI: 000000c000dfffa0
> RBP: 000000c000353418 R08: 000000c000db4000 R09: 0000000000000000
> R10: 0000000000000020 R11: 0000000000000206 R12: 000000c000243f18
> R13: 000000000000002e R14: 000000c0000001a0 R15: 0000000000000000
> </TASK>
>
>
> ---
> 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:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [syzbot] linux-next test error: WARNING in __mod_memcg_lruvec_state
2022-02-28 6:09 ` Andrew Morton
@ 2022-02-28 11:06 ` Sebastian Andrzej Siewior
2022-02-28 11:06 ` syzbot
0 siblings, 1 reply; 4+ messages in thread
From: Sebastian Andrzej Siewior @ 2022-02-28 11:06 UTC (permalink / raw)
To: Andrew Morton
Cc: syzbot, cgroups, hannes, linux-kernel, linux-mm, linux-next,
mhocko, roman.gushchin, sfr, syzkaller-bugs
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/bigeasy/staging.git 71d365035711aef4c4b1018d02fcf7868e3cb0c5
On 2022-02-27 22:09:43 [-0800], Andrew Morton wrote:
> (cc bigeasy)
>
> WARN_ON_ONCE(!irqs_disabled());
>
> in __mod_memcg_lruvec_state(), methinks.
This report ist from before you added
mm-memcg-protect-per-cpu-counter-by-disabling-preemption-on-preempt_rt-where-needed-fix.patch
to your tree. So it can be ignored. The next -next tree should be fine.
Sebastian
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [syzbot] linux-next test error: WARNING in __mod_memcg_lruvec_state
2022-02-28 11:06 ` Sebastian Andrzej Siewior
@ 2022-02-28 11:06 ` syzbot
0 siblings, 0 replies; 4+ messages in thread
From: syzbot @ 2022-02-28 11:06 UTC (permalink / raw)
To: Sebastian Andrzej Siewior
Cc: akpm, bigeasy, cgroups, hannes, linux-kernel, linux-mm,
linux-next, mhocko, roman.gushchin, sfr, syzkaller-bugs
> #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/bigeasy/staging.git 71d365035711aef4c4b1018d02fcf7868e3cb0c5
This crash does not have a reproducer. I cannot test it.
>
> On 2022-02-27 22:09:43 [-0800], Andrew Morton wrote:
>> (cc bigeasy)
>>
>> WARN_ON_ONCE(!irqs_disabled());
>>
>> in __mod_memcg_lruvec_state(), methinks.
>
> This report ist from before you added
> mm-memcg-protect-per-cpu-counter-by-disabling-preemption-on-preempt_rt-where-needed-fix.patch
>
> to your tree. So it can be ignored. The next -next tree should be fine.
>
> Sebastian
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-02-28 11:06 UTC | newest]
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2022-02-26 7:23 [syzbot] linux-next test error: WARNING in __mod_memcg_lruvec_state syzbot
2022-02-28 6:09 ` Andrew Morton
2022-02-28 11:06 ` Sebastian Andrzej Siewior
2022-02-28 11:06 ` syzbot
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