Message-Id: <4d3fd1cb-9b33-4598-b351-54ea455c2a6e@www.fastmail.com>
Date:   Mon, 30 Aug 2021 19:15:29 +0300
From:   Skyler Mäntysaari <lists@...ip.fi>
To:     "Kari Argillander" <kari.argillander@...il.com>
Cc:     linux-kernel@...r.kernel.org, amd-gfx@...ts.freedesktop.org
Subject: Re: [drm/amdgpu] Driver crashes on 5.13.9 kernel

I have tried kernel 5.13.13, without any difference and I haven't tried with an older kernel, as this hardware is that new that I have very little faith in less than 5.x kernel would even have support for the needed GPU.

What do you mean with git bisect? I have checked that the crash happens somewhere in the monitor connection code:

[ 9605.269927] Call Trace:
[ 9605.269931]  core_link_enable_stream+0x746/0x870 [amdgpu]
[ 9605.270038]  dce110_apply_ctx_to_hw+0x519/0x560 [amdgpu]
[ 9605.270146]  dc_commit_state+0x2f6/0xa50 [amdgpu]
[ 9605.270249]  amdgpu_dm_atomic_commit_tail+0x569/0x26a0 [amdgpu]
[ 9605.270326]  ? kfree+0xc3/0x460
[ 9605.270329]  ? dcn30_validate_bandwidth+0x11f/0x270 [amdgpu]
[ 9605.270402]  ? dcn30_validate_bandwidth+0x11f/0x270 [amdgpu]
[ 9605.270469]  ? dm_plane_helper_prepare_fb+0x19c/0x250 [amdgpu]
[ 9605.270542]  ? __cond_resched+0x16/0x40
[ 9605.270544]  ? __wait_for_common+0x3b/0x160
[ 9605.270545]  ? __raw_callee_save___native_queued_spin_unlock+0x11/0x1e
[ 9605.270548]  commit_tail+0x94/0x130 [drm_kms_helper]
[ 9605.270557]  drm_atomic_helper_commit+0x113/0x140 [drm_kms_helper]
[ 9605.270562]  drm_atomic_helper_set_config+0x70/0xb0 [drm_kms_helper]
[ 9605.270568]  drm_mode_setcrtc+0x1d3/0x6d0 [drm]
[ 9605.270582]  ? drm_mode_getcrtc+0x180/0x180 [drm]
[ 9605.270590]  drm_ioctl_kernel+0xaa/0xf0 [drm]
[ 9605.270600]  drm_ioctl+0x220/0x3c0 [drm]
[ 9605.270609]  ? drm_mode_getcrtc+0x180/0x180 [drm]
[ 9605.270618]  amdgpu_drm_ioctl+0x49/0x80 [amdgpu]
[ 9605.270673]  __x64_sys_ioctl+0x83/0xb0
[ 9605.270675]  do_syscall_64+0x40/0xb0
[ 9605.270677]  entry_SYSCALL_64_after_hwframe+0x44/0xae


On Sun, Aug 29, 2021, at 20:34, Kari Argillander wrote:
> On Sun, Aug 29, 2021 at 06:38:39PM +0300, Skyler Mäntysaari wrote:
> > Hello everyone on the list,
> 
> This is universal kernel list and it is not read by many. I have added
> hopefully right list (amd-gfx@...ts.freedesktop.org).
> 
> > Subject: Re: [drm/amdgpu] Driver crashes on 5.13.9 kernel
> 
> I have no influence or knowledge about this driver, but I still try to
> help because it seems good bug report. Have you test with 5.13.13 or
> 5.14-rc7. Does this work with some other kernel? If needed can you git
> bisect if needed? You will probably get some support for it if needed.
> 
> Argillander
> 
> > I thought that this should probably be discussed here,  so I came
> > across weird issue to me which is driver crashing while trying to get
> > one of my monitors working on Gentoo.  I would like to ask here how
> > that would happen that the Display appears to jump from DisplayPort-6
> > (physical port) to DisplayPort-7 (which doesn't exist physically)? Has
> > anyone else experienced this?
> > 
> > It seems that the driver sees a rather large amount of inputs for the
> > GPU, even though I only have 4, 3 of which are DisplayPort, and the
> > issue monitor is also on DisplayPort. 
> > 
> > Hardware:
> > CPU: AMD Ryzen 5800X
> > GPU: AMD Radeon RX 6800
> > System Memory: 32GB of DDR4 3200Mhz
> > Display(s): BenQ Zowie XL2430 (1080p), DELL U2414H (1080p), DELL U2415 (1920x1200)
> > Type of Diplay Connection: All are connected via Display-Port
> > 
> > Related DRM issue:
> > https://gitlab.freedesktop.org/drm/amd/-/issues/1621 which includes
> > logs too.
> > 
> > 
> > Best regards,
> > Skyler Mäntysaari

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