[Bug 1193931] New: unexpectedly, the system freezes very much
https://bugzilla.suse.com/show_bug.cgi?id=1193931 Bug ID: 1193931 Summary: unexpectedly, the system freezes very much Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs@opensuse.org Reporter: suse@rop.cx QA Contact: qa-bugs@suse.de Group: novellonly, SUSE Security Internal Found By: --- Blocker: --- Created attachment 854712 --> https://bugzilla.suse.com/attachment.cgi?id=854712&action=edit full dmesg usually nothing works and only sometimes works very slowly for a few seconds, but the cursor is working properly, usually without delay -- You are receiving this mail because: You are the assignee for the bug.
https://bugzilla.suse.com/show_bug.cgi?id=1193931
https://bugzilla.suse.com/show_bug.cgi?id=1193931#c1
--- Comment #1 from Artyom
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https://bugzilla.suse.com/show_bug.cgi?id=1193931#c2
--- Comment #2 from Artyom
https://bugzilla.suse.com/show_bug.cgi?id=1193931
https://bugzilla.suse.com/show_bug.cgi?id=1193931#c3
Takashi Iwai
https://bugzilla.suse.com/show_bug.cgi?id=1193931
https://bugzilla.suse.com/show_bug.cgi?id=1193931#c4
--- Comment #4 from Artyom
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https://bugzilla.suse.com/show_bug.cgi?id=1193931#c5
--- Comment #5 from Artyom
Could you give hwinfo output?
Done (In reply to Takashi Iwai from comment #3)
There is nothing serious shown in the kernel itself, so it's hard to judge only from the current log, unfortunately.
How can I get more information if this happens again? (fortunately, this does not happen often) Perhaps with the 5.16 kernel it will be fixed (In reply to Takashi Iwai from comment #3)
What is the a.out at the end of the log? There seems to be lots of segfaults happening there (the suppressed show_signal_msg).
Its buggy application (there off-by-one bug) I think problem in iwlwifi driver -- You are receiving this mail because: You are the assignee for the bug.
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https://bugzilla.suse.com/show_bug.cgi?id=1193931#c6
--- Comment #6 from Takashi Iwai
(In reply to Takashi Iwai from comment #3)
Could you give hwinfo output?
Done
(In reply to Takashi Iwai from comment #3)
There is nothing serious shown in the kernel itself, so it's hard to judge only from the current log, unfortunately.
How can I get more information if this happens again? (fortunately, this does not happen often) Perhaps with the 5.16 kernel it will be fixed
(In reply to Takashi Iwai from comment #3)
What is the a.out at the end of the log? There seems to be lots of segfaults happening there (the suppressed show_signal_msg).
Its buggy application (there off-by-one bug) I think problem in iwlwifi driver
Possible. But usually WiFi driver problem shouldn't bring such a slowdown. Is the slowdown phenomenon reproducible? I wonder whether it was due to the massive crashes (segfaults) of buggy application you mentioned in the above. Since each crash triggers the core dump and processing via systemd-coredump, it'll take lots of CPU and storage resources. -- You are receiving this mail because: You are the assignee for the bug.
https://bugzilla.suse.com/show_bug.cgi?id=1193931
https://bugzilla.suse.com/show_bug.cgi?id=1193931#c7
--- Comment #7 from Artyom
(In reply to Artyom from comment #5)
(In reply to Takashi Iwai from comment #3)
Could you give hwinfo output?
Done
(In reply to Takashi Iwai from comment #3)
There is nothing serious shown in the kernel itself, so it's hard to judge only from the current log, unfortunately.
How can I get more information if this happens again? (fortunately, this does not happen often) Perhaps with the 5.16 kernel it will be fixed
(In reply to Takashi Iwai from comment #3)
What is the a.out at the end of the log? There seems to be lots of segfaults happening there (the suppressed show_signal_msg).
Its buggy application (there off-by-one bug) I think problem in iwlwifi driver
Possible. But usually WiFi driver problem shouldn't bring such a slowdown.
Is the slowdown phenomenon reproducible? I wonder whether it was due to the massive crashes (segfaults) of buggy application you mentioned in the above. Since each crash triggers the core dump and processing via systemd-coredump, it'll take lots of CPU and storage resources.
fortunately, I haven't noticed such problems lately, but I don't use a Bluetooth keyboard and headphones right now people on the forums wrote that there was a similar problem when using Bluetooth and 5 GHz wifi now the system hangs only from the firefox browser on some sites, but this is more of a browser problem (everything is fine on chromium) but if there is a way to debug, then I am ready to try to catch a similar state again -- You are receiving this mail because: You are the assignee for the bug.
https://bugzilla.suse.com/show_bug.cgi?id=1193931
https://bugzilla.suse.com/show_bug.cgi?id=1193931#c8
Jiri Slaby
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