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Message-ID: <ab1b0f73-6b4e-8602-2999-b7bec25d92db@googlemail.com> Date: Sat, 28 Jan 2023 11:29:33 +0000 From: Chris Clayton <chris2553@...glemail.com> To: Linux regressions mailing list <regressions@...ts.linux.dev>, bskeggs@...hat.com, Karol Herbst <kherbst@...hat.com>, Lyude Paul <lyude@...hat.com> Cc: LKML <linux-kernel@...r.kernel.org>, ML dri-devel <dri-devel@...ts.freedesktop.org>, ML nouveau <nouveau@...ts.freedesktop.org> Subject: Re: linux-6.2-rc4+ hangs on poweroff/reboot: Bisected On 28/01/2023 05:42, Linux kernel regression tracking (Thorsten Leemhuis) wrote: > On 27.01.23 20:46, Chris Clayton wrote: >> [Resend because the mail client on my phone decided to turn HTML on behind my back, so my reply got bounced.] >> >> Thanks Thorsten. >> >> I did try to revert but it didnt revert cleanly and I don't have the knowledge to fix it up. >> >> The patch was part of a merge that included a number of related patches. Tomorrow, I'll try to revert the lot and report >> back. > > You are free to do so, but there is no need for that from my side. I > only wanted to know if a simple revert would do the trick; if it > doesn't, it in my experience often is best to leave things to the > developers of the code in question, Sound advice, Thorsten. Way to many conflicts for me to resolve. as they know it best and thus have a > better idea which hidden side effect a more complex revert might have. > > Ciao, Thorsten > >> On 27/01/2023 11:20, Linux kernel regression tracking (Thorsten Leemhuis) wrote: >>> Hi, this is your Linux kernel regression tracker. Top-posting for once, >>> to make this easily accessible to everyone. >>> >>> @nouveau-maintainers, did anyone take a look at this? The report is >>> already 8 days old and I don't see a single reply. Sure, we'll likely >>> get a -rc8, but still it would be good to not fix this on the finish line. >>> >>> Chris, btw, did you try if you can revert the commit on top of latest >>> mainline? And if so, does it fix the problem? >>> >>> Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) >>> -- >>> Everything you wanna know about Linux kernel regression tracking: >>> https://linux-regtracking.leemhuis.info/about/#tldr >>> If I did something stupid, please tell me, as explained on that page. >>> >>> #regzbot poke >>> >>> On 19.01.23 15:33, Linux kernel regression tracking (Thorsten Leemhuis) >>> wrote: >>>> [adding various lists and the two other nouveau maintainers to the list >>>> of recipients] >>> >>>> On 18.01.23 21:59, Chris Clayton wrote: >>>>> Hi. >>>>> >>>>> I build and installed the lastest development kernel earlier this week. I've found that when I try the laptop down (or >>>>> reboot it), it hangs right at the end of closing the current session. The last line I see on the screen when rebooting is: >>>>> >>>>> sd 4:0:0:0: [sda] Synchronising SCSI cache >>>>> >>>>> when closing down I see one additional line: >>>>> >>>>> sd 4:0:0:0 [sda]Stopping disk >>>>> >>>>> In both cases the machine then hangs and I have to hold down the power button fot a few seconds to switch it off. >>>>> >>>>> Linux 6.1 is OK but 6.2-rc1 hangs, so I bisected between this two and landed on: >>>>> >>>>> # first bad commit: [0e44c21708761977dcbea9b846b51a6fb684907a] drm/nouveau/flcn: new code to load+boot simple HS FWs >>>>> (VPR scrubber) >>>>> >>>>> I built and installed a kernel with f15cde64b66161bfa74fb58f4e5697d8265b802e (the parent of the bad commit) checked out >>>>> and that shuts down and reboots fine. It the did the same with the bad commit checked out and that does indeed hang, so >>>>> I'm confident the bisect outcome is OK. >>>>> >>>>> Kernels 6.1.6 and 5.15.88 are also OK. >>>>> >>>>> My system had dual GPUs - one intel and one NVidia. Related extracts from 'lscpi -v' is: >>>>> >>>>> 00:02.0 VGA compatible controller: Intel Corporation CometLake-H GT2 [UHD Graphics] (rev 05) (prog-if 00 [VGA controller]) >>>>> Subsystem: CLEVO/KAPOK Computer CometLake-H GT2 [UHD Graphics] >>>>> >>>>> Flags: bus master, fast devsel, latency 0, IRQ 142 >>>>> >>>>> Memory at c2000000 (64-bit, non-prefetchable) [size=16M] >>>>> >>>>> Memory at a0000000 (64-bit, prefetchable) [size=256M] >>>>> >>>>> I/O ports at 5000 [size=64] >>>>> >>>>> Expansion ROM at 000c0000 [virtual] [disabled] [size=128K] >>>>> >>>>> Capabilities: [40] Vendor Specific Information: Len=0c <?> >>>>> >>>>> Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00 >>>>> >>>>> Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit- >>>>> >>>>> Capabilities: [d0] Power Management version 2 >>>>> >>>>> Kernel driver in use: i915 >>>>> >>>>> Kernel modules: i915 >>>>> >>>>> >>>>> 01:00.0 VGA compatible controller: NVIDIA Corporation TU117M [GeForce GTX 1650 Ti Mobile] (rev a1) (prog-if 00 [VGA >>>>> controller]) >>>>> Subsystem: CLEVO/KAPOK Computer TU117M [GeForce GTX 1650 Ti Mobile] >>>>> Flags: bus master, fast devsel, latency 0, IRQ 141 >>>>> Memory at c4000000 (32-bit, non-prefetchable) [size=16M] >>>>> Memory at b0000000 (64-bit, prefetchable) [size=256M] >>>>> Memory at c0000000 (64-bit, prefetchable) [size=32M] >>>>> I/O ports at 4000 [size=128] >>>>> Expansion ROM at c3000000 [disabled] [size=512K] >>>>> Capabilities: [60] Power Management version 3 >>>>> Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+ >>>>> Capabilities: [78] Express Legacy Endpoint, MSI 00 >>>>> Kernel driver in use: nouveau >>>>> Kernel modules: nouveau >>>>> >>>>> DRI_PRIME=1 is exported in one of my init scripts (yes, I am still using sysvinit). >>>>> >>>>> I've attached the bisect.log, but please let me know if I can provide any other diagnostics. Please cc me as I'm not >>>>> subscribed. >>>> >>>> Thanks for the report. To be sure the issue doesn't fall through the >>>> cracks unnoticed, I'm adding it to regzbot, the Linux kernel regression >>>> tracking bot: >>>> >>>> #regzbot ^introduced e44c2170876197 >>>> #regzbot title drm: nouveau: hangs on poweroff/reboot >>>> #regzbot ignore-activity >>>> >>>> This isn't a regression? This issue or a fix for it are already >>>> discussed somewhere else? It was fixed already? You want to clarify when >>>> the regression started to happen? Or point out I got the title or >>>> something else totally wrong? Then just reply and tell me -- ideally >>>> while also telling regzbot about it, as explained by the page listed in >>>> the footer of this mail. >>>> >>>> Developers: When fixing the issue, remember to add 'Link:' tags pointing >>>> to the report (the parent of this mail). See page linked in footer for >>>> details. >>>> >>>> Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) >>>> -- >>>> Everything you wanna know about Linux kernel regression tracking: >>>> https://linux-regtracking.leemhuis.info/about/#tldr >>>> That page also explains what to do if mails like this annoy you. >> >>
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