Hello, I am having an issue while executing suspend-to-ram since sys-kernel/gentoo-sources-6.6.23 till 6.8.5 with serial8250 that is not configured as a module, it is included as "*" in the kernel config: [ 128.464762] port serial8250:0.0: PM: dpm_run_callback(): pm_runtime_force_suspend+0x0/0x140 returns -16 [ 128.464770] port serial8250:0.0: PM: failed to suspend: error -16 [ 131.131373] port serial8250:0.0: PM: dpm_run_callback(): pm_runtime_force_suspend+0x0/0x140 returns -16 [ 131.131381] port serial8250:0.0: PM: failed to suspend: error -16 All kernels before "6.6.23" work as expected, none of the mayor versions work suspend-to-ram at all with the same config, I mean "6.7.*" and "6.8.*". Dont know if something changed in the kernel past this version, didn't change any config so far related to this issue and also cant find anything on the web related to this issue timed recently. I have 2 thinkpads, one x270 and x390, this happens on both of them but the upper version of the x390 that works suspend-to-ram is 6.6.26. Noone seems to have been reported this issue so my guess is that is in my side. I guess this is a needed module and should not disable it. Attached dmesg log, ask for anything you want me to share/try. Many thanks.
I could not see your attachments (dmesg log). https://wiki.gentoo.org/wiki/Attach_the_logs_to_the_bug_ticket Lets see if the kernel team can help please attach your kernel config in the mean time.
Created attachment 890580 [details] dmesg log
Created attachment 890581 [details] kernel config
sorry for that. done.
(In reply to mrpingo from comment #0) > Hello, > > I am having an issue while executing suspend-to-ram since > sys-kernel/gentoo-sources-6.6.23 till 6.8.5 with serial8250 that is not > configured as a module, it is included as "*" in the kernel config: > > [ 128.464762] port serial8250:0.0: PM: dpm_run_callback(): > pm_runtime_force_suspend+0x0/0x140 returns -16 > [ 128.464770] port serial8250:0.0: PM: failed to suspend: error -16 > [ 131.131373] port serial8250:0.0: PM: dpm_run_callback(): > pm_runtime_force_suspend+0x0/0x140 returns -16 > [ 131.131381] port serial8250:0.0: PM: failed to suspend: error -16 > > All kernels before "6.6.23" work as expected, none of the mayor versions > work suspend-to-ram at all with the same config, I mean "6.7.*" and "6.8.*". > > Dont know if something changed in the kernel past this version, didn't > change any config so far related to this issue and also cant find anything > on the web related to this issue timed recently. > > I have 2 thinkpads, one x270 and x390, this happens on both of them but the > upper version of the x390 that works suspend-to-ram is 6.6.26. Noone seems > to have been reported this issue so my guess is that is in my side. > > I guess this is a needed module and should not disable it. > > Attached dmesg log, ask for anything you want me to share/try. > > > Many thanks. 6.6.23 is working as expected, all of them after this one come with this issue.
first dmesg is form kernel 6.6.26. I have now attached dmesg from 6.8.5 Many thanks
Created attachment 890582 [details] dmesg log from kernel 6.8.5
I forgot to mention that both laptops hangs when shutting down with those kernels, although nothing related is logged on dmesg, syslog, rc.log, etc. sharing those logs for completion.
Created attachment 890722 [details] x390 rc.log x390 rc.log after hang when shutting down
Created attachment 890723 [details] x390 dmesg x390 dmesg after hang when shutting down
Created attachment 890724 [details] x390 syslog x390 syslog after hang when shutting down
By hang I mean it shuts-down included the screen (which is turned off) but the power button has the light on and the block mayus key is blinking indefinitely. That happens on both laptops x270 and x390.
I removed: Symbol: SERIAL_8250 [=n] seems that everything that usually need works on both laptops, and probably I do not need that module for anything, also suspend-to-ram now works on gentoo-sources-6.8.5 on both computers, although shutdown still hangs on final stage on both. How can I log everything while shutting down especially kernel messages? seems that nothing is recorded/shown on logs/tty12 between services shutting down and kernel final messages while shutting down hardware, because still hangs when screen is completely off and I am not able to see anything. Shall I edit the description of the bug? Regards
Just found on ubuntu same behaviour that I am experiencing: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2059738 looks like it is a kernel bug(?) and not specifically gentoo kernel bug(?). Still able to do tests if you want some debug. Regards
Today and again, compiled gentoo-sources-6.9.0 and both laptops x270 and x390 still hangs on the last point of shutdown. Everything seems to properly shuts down (screen, keyboard, ...) but in the end both laptops still powered; x270 have power light switched on, x390 bloq mayus light is blinking. I still have to press both laptops power button to do a completely poweroff. Should I report this upstream to bugs.kernel.org? I found people on internet with same problem but different distributions like fedora, ubuntu, ... Best
Is Wake-On-LAN was enabled in the BIOS?
Thanks for your quick answer, I thought it was disabled im x270 from the last time I checked, I think it was something related with the BIOS upgrade thingy but I disabled it and still have the same issue. x390 has nothing enabled related with WoL. So most probably is not WoL. Upgraded kernel to 6.6.30 that is the last one that I dont have this freezing in the last part of the shutdown/reboot process on both computers. Both (x270 and x390 thinkpads) have the same issue with kernels from 6.7.x -> 6.9. I then think that something has changed on those range of kernel versions in the shutdown process. I dont know if I am explaining the issue correctly, hope you understand. I am still open to do test and ideas. Best
(In reply to mrpingo from comment #17) > Thanks for your quick answer, > > I thought it was disabled im x270 from the last time I checked, I think it > was something related with the BIOS upgrade thingy but I disabled it and > still have the same issue. x390 has nothing enabled related with WoL. So > most probably is not WoL. > > Upgraded kernel to 6.6.30 that is the last one that I dont have this > freezing in the last part of the shutdown/reboot process on both computers. > Both (x270 and x390 thinkpads) have the same issue with kernels from 6.7.x > -> 6.9. I then think that something has changed on those range of kernel > versions in the shutdown process. > > I dont know if I am explaining the issue correctly, hope you understand. > > I am still open to do test and ideas. > > Best That helps. Can you do a git bisect between 6.6.30 and a failing kernel ? The closer to 6.6.30 the easier your life will be.
Aha! Thanks Mike! You just told me how to get there. I dressed as a surgeon, did a master on git, took a scalpel and started to dig. After 15 iterations (config, compile, install and reboot the kernel) I got this: _______________________________________________________________________________ ❯ git bisect good e046d156249140711a08ff27473591c74ef90814 is the first bad commit commit e046d156249140711a08ff27473591c74ef90814 Author: Ville Syrjälä <ville.syrjala@linux.intel.com> Date: Tue Aug 29 14:39:17 2023 +0300 drm/i915/hdmi: Use connector->ddc everwhere We already populate connector->ddc for HDMI ports, but so far we've not taken full advantage of it. Do that by eliminating a bunch of intel_gmbus_get_adapter() lookups. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230829113920.13713-10-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com> drivers/gpu/drm/i915/display/intel_ddi.c | 3 +-- drivers/gpu/drm/i915/display/intel_hdmi.c | 37 +++++++++++-------------------- 2 files changed, 14 insertions(+), 26 deletions(-)' _____________________________________________________________________________ Now, what I should do? I have no idea, and never got this far looking for a "bad commit", but I think this is just related to me? Nobody had this issue? What module should I disable (please, not Intel GPU) to see if the laptops shutdown/reboot without issues? Many many thanks already!
I would report it upstream if you consider it. The sooner we take action the sooner they patch it. Best
For completeness you can find the upstream issue here: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/11244 Many thanks to everyone. Regards
We'll follow the upstream bug and backport any fixes identified.
Seems this bug is not present in any computer with kernel 6.12.1 thanks to all for address it.
