[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 <suse@rop.cx> --- Created attachment 854713 --> https://bugzilla.suse.com/attachment.cgi?id=854713&action=edit dmesg -l err -- 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#c2 --- Comment #2 from Artyom <suse@rop.cx> --- ��lso looks like input and output is getting very slow (I wanted to install iotop, but I didn't wait for 30 minutes) -- 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#c3 Takashi Iwai <tiwai@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |suse@rop.cx, tiwai@suse.com Flags| |needinfo?(suse@rop.cx) --- Comment #3 from Takashi Iwai <tiwai@suse.com> --- Could you give hwinfo output? There is nothing serious shown in the kernel itself, so it's hard to judge only from the current log, unfortunately. 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). -- 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#c4 --- Comment #4 from Artyom <suse@rop.cx> --- Created attachment 854920 --> https://bugzilla.suse.com/attachment.cgi?id=854920&action=edit hwinfo -- 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#c5 --- Comment #5 from Artyom <suse@rop.cx> --- (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 -- 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#c6 --- Comment #6 from Takashi Iwai <tiwai@suse.com> --- (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. -- 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 <suse@rop.cx> --- (In reply to Takashi Iwai from comment #6)
(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 <jslaby@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |jslaby@suse.com Resolution|--- |FIXED --- Comment #8 from Jiri Slaby <jslaby@suse.com> --- This is hopefully fixed. Feel free to reopen, if not. -- You are receiving this mail because: You are the assignee for the bug.
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