Hi Christian, Sure, how can I help to fix that? Regards, LuÃs On Thu, Jul 12, 2018 at 8:13 AM, Christian König <christian.koenig at amd.com> wrote: > Hi Luis, > > well was "drm/amdgpu: defer test IBs on the rings at boot (V3)" does is > delaying the IB test a bit and running it async to the rest of the bootup. > > So what most likely happens is that some hardware feature (like power or > clock gating) which doesn't works correctly on your system kicks in and > lets the IB test fail. > > It's rather likely that this problem is also responsible for the crashes > you expect later on. So I think we should concentrate on fixing that. > > Regards, > Christian. > > > Am 11.07.2018 um 23:27 schrieb LuÃs Mendes: > > Hi Jim, > > I followed your suggestion and was able to bisect the kernel patches. > The offending patch is: drm/amdgpu: defer test IBs on the rings at boot > (V3) > commit: > > 2c773de2ecb8c327f2448bd1eecad224e9227087 > <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v4.18-rc4&id=2c773de2ecb8c327f2448bd1eecad224e9227087> > > After reverting this patch the IB test succeeded with kernel v4.18-rc4 on > both systems and the amdgpu driver was correctly loaded both on SAPPHIRE > RX550 4GB and on SAPPHIRE RX460 2GB. > > The GPU hang remains, however. > I will try to configure a remote IPMI connection to see what is happening > with the kernel boot or setup a serial console for the Kernel. > > Thanks & Regards, > LuÃs > > On Wed, Jul 11, 2018 at 10:56 AM, jimqu <jimqu at amd.com> wrote: > >> HI Luis, >> >> >> Let us trace the issue one by one. >> >> >> IB test fail: >> >> This should be regression issue on 4.18, you can bisect the kernel >> patches. >> >> GPU hang: >> >> Fix IB test fail first. >> >> >> Thanks >> >> JimQu >> >> >> >> On 2018å¹´07æ??11æ?¥ 17:34, LuÃs Mendes wrote: >> >> Hi Jim, >> >> Thanks for your interest in this issue. Actually this is a multiple >> issue... not only the IB ring test is failing... as I am having quite some >> trouble getting the cards SAPPHIRE RX 550 4GB on a Tyan S7025 and SAPPHIRE >> RX 460 2GB on a TYAN S7002 to work, both systems using same Ubuntu 18.04 >> with vanilla kernel. >> >> *1. May you also test earlier kernel? v4.17 or v4.16.* >> I've tested kernels v4.17.5 and v4.16.6 with same system and both are >> able to pass the IB ring test and system boots into X using NVIDIA as the >> display connected card. >> dmesg log attached for kernel 4.17.5, file TYAN_S7025_kernelv4.17.5_amdgp >> u_IB_ring_test_OK.txt. >> >> *2. May you test the issue only with amdgpu?* >> - I've tested on a TYAN S7002 system with a single SAPPHIRE RX 460 2GB, >> on-board VGA enabled and used as primary display. >> Kernel v4.18-rc4 fails the IB ring test, system is able to enter X >> through the on-board VGA. >> dmesg log attached for kernel 4.18-rc4, file >> TYAN_S7002_kernel_v4.18-rc4_IB_ring_test_fail.txt. >> >> - Same TYAN S7002 system, but now with on-board VGA disabled and using RX >> 460 as display connected card. >> Kernels v4.17.5 and v4.16.6 are able to pass the IB ring test, but GPU >> hangs before entering X. Don't have logs for these yet. >> >> Regards, >> LuÃs Mendes >> Aparapi contributor and MSc Researcher >> >> >> >> >> >> On Wed, Jul 11, 2018 at 3:49 AM, Qu, Jim <Jim.Qu at amd.com> wrote: >> >>> Hi Luis, >>> >>> 1. May you also test earlier kernel? v4.17 or v4.16. >>> 2. May you test the issue only with amdgpu? >>> >>> Thanks >>> JimQu >>> >>> ________________________________________ >>> å??件人: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> 代表 LuÃs Mendes < >>> luis.p.mendes at gmail.com> >>> å??é??æ?¶é?´: 2018å¹´7æ??11æ?¥ 6:04:00 >>> æ?¶ä»¶äºº: Michel Dänzer; Koenig, Christian; amd-gfx list >>> 主é¢?: Re: Regression with kernel 4.18 - AMD RX 550 fails IB ring test on >>> power-up >>> >>> Hi, >>> >>> Issue remains in kernel 4.18-rc4 using SAPPHIRE RX 550 4GB. >>> >>> Logs follow attached. >>> >>> Regards, >>> Luis >>> >>> On Tue, Jun 26, 2018 at 10:08 AM, LuÃs Mendes <luis.p.mendes at gmail.com >>> <mailto:luis.p.mendes at gmail.com>> wrote: >>> Hi, >>> >>> I've tried kernel 4.18-rc2 on a system with a NVIDIA GTX 1050 Ti and an >>> AMD RX 550 4GB and the RX 550 card is failing the IB ring test. >>> >>> [ 5.033217] [drm:gfx_v8_0_ring_test_ib [amdgpu]] *ERROR* amdgpu: ib >>> test failed (scratch(0xC040)=0xFFFFFFFF) >>> [ 5.033264] [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* amdgpu: >>> failed testing IB on ring 6 (-22). >>> >>> Please see the attached log. >>> >>> Regards, >>> LuÃs >>> >>> >> >> > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180712/c7b32aff/attachment-0001.html>
