Re: 5.11-rc1 TTM list corruption

2021-01-06 Thread Alex Deucher
On Wed, Jan 6, 2021 at 11:54 AM David Woodhouse wrote: > > On Tue, 2021-01-05 at 16:40 +0100, Christian König wrote: > > Am 05.01.21 um 13:20 schrieb Huang Rui: > > > On Tue, Jan 05, 2021 at 07:43:51PM +0800, Borislav Petkov wrote: > > > > On Tue, Jan 05, 2021 at 07:08:52PM +0800, Huang Rui

Re: 5.11-rc1 TTM list corruption

2021-01-06 Thread David Woodhouse
On Tue, 2021-01-05 at 16:40 +0100, Christian König wrote: > Am 05.01.21 um 13:20 schrieb Huang Rui: > > On Tue, Jan 05, 2021 at 07:43:51PM +0800, Borislav Petkov wrote: > > > On Tue, Jan 05, 2021 at 07:08:52PM +0800, Huang Rui wrote: > > > > Ah, this asic is a bit old and still use radeon driver.

Re: 5.11-rc1 TTM list corruption

2021-01-05 Thread Christian König
Am 05.01.21 um 13:20 schrieb Huang Rui: On Tue, Jan 05, 2021 at 07:43:51PM +0800, Borislav Petkov wrote: On Tue, Jan 05, 2021 at 07:08:52PM +0800, Huang Rui wrote: Ah, this asic is a bit old and still use radeon driver. So we didn't reproduce it on amdgpu driver. I don't have such the old asic

Re: 5.11-rc1 TTM list corruption

2021-01-05 Thread Huang Rui
On Tue, Jan 05, 2021 at 07:43:51PM +0800, Borislav Petkov wrote: > On Tue, Jan 05, 2021 at 07:08:52PM +0800, Huang Rui wrote: > > Ah, this asic is a bit old and still use radeon driver. So we didn't > > reproduce it on amdgpu driver. I don't have such the old asic in my hand. > > May we know

Re: 5.11-rc1 TTM list corruption

2021-01-05 Thread Borislav Petkov
On Tue, Jan 05, 2021 at 07:08:52PM +0800, Huang Rui wrote: > Ah, this asic is a bit old and still use radeon driver. So we didn't > reproduce it on amdgpu driver. I don't have such the old asic in my hand. > May we know whether this issue can be duplicated after SI which is used > amdgpu module

Re: 5.11-rc1 TTM list corruption

2021-01-05 Thread Christian König
Am 05.01.21 um 12:08 schrieb Huang Rui: On Tue, Jan 05, 2021 at 06:31:38PM +0800, Borislav Petkov wrote: Hi, On Tue, Jan 05, 2021 at 12:12:13PM +0800, Huang Rui wrote: I am reproducing this issue as well, are you using a Raven board? I have no clue what Raven is. The workstation I triggered

Re: 5.11-rc1 TTM list corruption

2021-01-05 Thread Huang Rui
On Tue, Jan 05, 2021 at 06:31:38PM +0800, Borislav Petkov wrote: > Hi, > > On Tue, Jan 05, 2021 at 12:12:13PM +0800, Huang Rui wrote: > > I am reproducing this issue as well, are you using a Raven board? > > I have no clue what Raven is. The workstation I triggered it once on, has: > > [

Re: 5.11-rc1 TTM list corruption

2021-01-05 Thread Borislav Petkov
Hi, On Tue, Jan 05, 2021 at 12:12:13PM +0800, Huang Rui wrote: > I am reproducing this issue as well, are you using a Raven board? I have no clue what Raven is. The workstation I triggered it once on, has: [7.563968] [drm] radeon kernel modesetting enabled. [7.581417] [drm] initializing

Re: 5.11-rc1 TTM list corruption

2021-01-04 Thread Huang Rui
On Mon, Jan 04, 2021 at 06:58:02PM +0800, Borislav Petkov wrote: > On Fri, Jan 01, 2021 at 03:34:28PM +0100, Christian K?nig wrote: > > Going to double check the code, but can you reproduce this issue > > reliable? > > Lemme find a test box which can trigger it too - the splat happened > on my

Re: 5.11-rc1 TTM list corruption

2021-01-04 Thread Christian König
Am 04.01.21 um 11:58 schrieb Borislav Petkov: On Fri, Jan 01, 2021 at 03:34:28PM +0100, Christian König wrote: Going to double check the code, but can you reproduce this issue reliable? Lemme find a test box which can trigger it too - the splat happened on my workstation and I'd like to avoid

Re: 5.11-rc1 TTM list corruption

2021-01-04 Thread Borislav Petkov
On Fri, Jan 01, 2021 at 03:34:28PM +0100, Christian König wrote: > Going to double check the code, but can you reproduce this issue > reliable? Lemme find a test box which can trigger it too - the splat happened on my workstation and I'd like to avoid debugging there for obvious reasons. Thx.

Re: 5.11-rc1 TTM list corruption

2021-01-01 Thread Christian König
Hi Borislav, my best guess is that this is an use after free. Going to double check the code, but can you reproduce this issue reliable? Thanks, Christian. Am 31.12.20 um 11:40 schrieb Borislav Petkov: Hi folks, got this when trying to suspend my workstation to disk, it was still responsive

5.11-rc1 TTM list corruption

2020-12-31 Thread Borislav Petkov
Hi folks, got this when trying to suspend my workstation to disk, it was still responsive so I could catch the splat: [22020.334381] [ cut here ] [22020.339057] list_del corruption. next->prev should be 8b7a9a40, but was 8881020bced0 [22020.347764] WARNING: