Hi Tejun,
I have not seem the crash since then. Please mail the patch.
On Fri, Apr 22, 2016 at 8:55 PM, Dmitry Vyukov wrote:
> On Thu, Apr 21, 2016 at 7:06 PM, Tejun Heo wrote:
>> Hello,
>>
>> (cc'ing Ilya, Jan and Jens)
>>
>> On Thu, Apr 21, 2016 at 12:00:38PM +0200, Dmitry Vyukov wrote:
>>>
On Thu, Apr 21, 2016 at 7:06 PM, Tejun Heo wrote:
> Hello,
>
> (cc'ing Ilya, Jan and Jens)
>
> On Thu, Apr 21, 2016 at 12:00:38PM +0200, Dmitry Vyukov wrote:
>> On Thu, Apr 21, 2016 at 11:45 AM, Andrey Ryabinin
>> wrote:
>> > 2016-04-21 11:35 GMT+03:00 Dmitry Vyukov :
>> >>
>> >> 818884dd
Hello,
(cc'ing Ilya, Jan and Jens)
On Thu, Apr 21, 2016 at 12:00:38PM +0200, Dmitry Vyukov wrote:
> On Thu, Apr 21, 2016 at 11:45 AM, Andrey Ryabinin
> wrote:
> > 2016-04-21 11:35 GMT+03:00 Dmitry Vyukov :
> >>
> >> 818884dd: 48 8b 03mov(%rbx),%rax
> >>
> >> So
Hello,
On Thu, Apr 21, 2016 at 10:25:12AM +0200, Dmitry Vyukov wrote:
> I use this script for symbolization:
> https://github.com/google/sanitizers/blob/master/address-sanitizer/tools/kasan_symbolize.py
> It invokes addr2line to provide file:line info, adds inline frames,
> strips ? frames (are th
On Thu, Apr 21, 2016 at 11:45 AM, Andrey Ryabinin
wrote:
> 2016-04-21 11:35 GMT+03:00 Dmitry Vyukov :
>>
>> 818884dd: 48 8b 03mov(%rbx),%rax
>>
>> So whatever load "&wb->bdi->wb" produces is a NULL deref. (is it wb
>> that is NULL?)
>
> Yes it's NULL wb, because t
2016-04-21 11:35 GMT+03:00 Dmitry Vyukov :
>
> 818884dd: 48 8b 03mov(%rbx),%rax
>
> So whatever load "&wb->bdi->wb" produces is a NULL deref. (is it wb
> that is NULL?)
Yes it's NULL wb, because there is only one load:
mov(%rbx),%rax=> rax =
On Thu, Apr 21, 2016 at 11:10 AM, Andrey Ryabinin
wrote:
> 2016-04-21 11:25 GMT+03:00 Dmitry Vyukov :
>> On Wed, Apr 20, 2016 at 11:14 PM, Tejun Heo wrote:
>>> Hello, Dmitry.
>>>
>>> On Mon, Apr 18, 2016 at 11:44:11AM +0200, Dmitry Vyukov wrote:
>>>
general protection fault: [#1] SMP DE
2016-04-21 11:25 GMT+03:00 Dmitry Vyukov :
> On Wed, Apr 20, 2016 at 11:14 PM, Tejun Heo wrote:
>> Hello, Dmitry.
>>
>> On Mon, Apr 18, 2016 at 11:44:11AM +0200, Dmitry Vyukov wrote:
>>
>>> general protection fault: [#1] SMP DEBUG_PAGEALLOC KASAN
>> ...
>>> RIP: 0010:[] []
>>> locked_inode_t
On Wed, Apr 20, 2016 at 11:14 PM, Tejun Heo wrote:
> Hello, Dmitry.
>
> On Mon, Apr 18, 2016 at 11:44:11AM +0200, Dmitry Vyukov wrote:
>
>> general protection fault: [#1] SMP DEBUG_PAGEALLOC KASAN
> ...
>> RIP: 0010:[] []
>> locked_inode_to_wb_and_lock_list+0xa2/0x750
>> RSP: 0018:88006c
On Wed, Apr 20, 2016 at 11:14 PM, Tejun Heo wrote:
> Hello, Dmitry.
>
> On Mon, Apr 18, 2016 at 11:44:11AM +0200, Dmitry Vyukov wrote:
>
>> general protection fault: [#1] SMP DEBUG_PAGEALLOC KASAN
> ...
>> RIP: 0010:[] []
>> locked_inode_to_wb_and_lock_list+0xa2/0x750
>> RSP: 0018:88006c
Hello, Dmitry.
On Mon, Apr 18, 2016 at 11:44:11AM +0200, Dmitry Vyukov wrote:
> general protection fault: [#1] SMP DEBUG_PAGEALLOC KASAN
...
> RIP: 0010:[] []
> locked_inode_to_wb_and_lock_list+0xa2/0x750
> RSP: 0018:88006cdaf7d0 EFLAGS: 00010246
> RAX: RBX: 00
Hello,
I've hit the following GPF while running syzkaller fuzzer on commit
806fdcce017dc98c4dbf8ed001750a0d7d2bb0af (Apr 14):
general protection fault: [#1] SMP DEBUG_PAGEALLOC KASAN
Modules linked in:
CPU: 3 PID: 32 Comm: kworker/u10:1 Not tainted 4.6.0-rc3+ #349
Hardware name: QEMU Standar
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