February 2022 - openSUSE Kernel Bugs - openSUSE Mailing Lists

[Bug 1180316] New: [Build 20201222] openQA test fails in kdump_and_crash
by bugzilla_noreply＠suse.com 15 Mar '22

15 Mar '22

http://bugzilla.opensuse.org/show_bug.cgi?id=1180316 Bug ID: 1180316 Summary: [Build 20201222] openQA test fails in kdump_and_crash Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other URL: https://openqa.opensuse.org/tests/1523048/modules/kdum p_and_crash/steps/58 OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs(a)opensuse.org Reporter: dimstar(a)opensuse.org QA Contact: qa-bugs(a)suse.de Found By: openQA Blocker: Yes ## Observation openQA test in scenario opensuse-Tumbleweed-JeOS-for-kvm-and-xen-x86_64-jeos-extra@64bit_virtio-2G fails in [kdump_and_crash](https://openqa.opensuse.org/tests/1523048/modules/kdump_an… After the update to kernel 5.10, kdump_and_crash fails crash: cannot determine length of symbol: log_end ## Test suite description Same as jeos, plus some more tests. ## Reproducible Fails since (at least) Build [20190311](https://openqa.opensuse.org/tests/877894) ## Expected result Last good: (unknown) (or more recent) ## Further details Always latest result in this scenario: [latest](https://openqa.opensuse.org/tests/latest?arch=x86_64&distri=opensus… -- You are receiving this mail because: You are the assignee for the bug.

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[Bug 1184782] New: Emergency mode during boot with "mount(2) system call failed: Cannot allocate memory"
by bugzilla_noreply＠suse.com 11 Mar '22

11 Mar '22

https://bugzilla.suse.com/show_bug.cgi?id=1184782 Bug ID: 1184782 Summary: Emergency mode during boot with "mount(2) system call failed: Cannot allocate memory" Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: openSUSE Tumbleweed Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs(a)opensuse.org Reporter: martin.wilck(a)suse.com QA Contact: qa-bugs(a)suse.de Found By: --- Blocker: --- Just had this problem when starting my workstation this morning. May or may not be related to bug 1184779, which I encountered simultaneously. > [ 105.589905] apollon systemd[1]: Mounting /var/spool... > [ 105.610706] apollon systemd[1]: Mounting /var/tmp... > [ 105.612009] apollon systemd[1]: Starting File System Check on /dev/disk/by-label/git... > ... > [ 105.626645] apollon mount[1975]: mount: /var/tmp: mount(2) system call failed: Cannot allocate memory. > [ 105.636377] apollon systemd[1]: Finished Load/Save Screen Backlight Brightness of leds:dell::kbd_backlight. > [ 105.638474] apollon systemd[1]: Mounted /.snapshots. > [ 105.640099] apollon systemd[1]: Mounted /boot/efi. > ... > [ 105.666824] apollon systemd[1]: Failed to mount /var/tmp. > [ 105.668645] apollon systemd[1]: Dependency failed for Local File Systems. > [ 105.668705] apollon systemd[1]: local-fs.target: Job local-fs.target/start failed with result 'dependency'. After entering emergency mode, I simply typed "mount /var/tmp", and had no issue. Bug 1184779 persisted though (see there). /var/tmp is just a btrfs subvolume. # btrfs subvol list / ID 257 gen 930369 top level 5 path @ ID 258 gen 1432317 top level 257 path @/.snapshots ID 260 gen 1427487 top level 257 path @/boot/grub2/x86_64-efi ID 261 gen 1432361 top level 257 path @/opt ID 262 gen 1427487 top level 257 path @/srv ID 263 gen 18 top level 257 path @/tmp ID 264 gen 1432300 top level 257 path @/usr/local ID 265 gen 1432339 top level 257 path @/var/cache ID 266 gen 1427487 top level 257 path @/var/crash ID 267 gen 1427487 top level 257 path @/var/lib/mailman ID 268 gen 1427487 top level 257 path @/var/lib/mariadb ID 269 gen 1427487 top level 257 path @/var/lib/mysql ID 270 gen 1427487 top level 257 path @/var/lib/named ID 271 gen 1427487 top level 257 path @/var/lib/pgsql ID 272 gen 1432392 top level 257 path @/var/log ID 273 gen 1427487 top level 257 path @/var/opt ID 274 gen 1432391 top level 257 path @/var/spool ID 275 gen 1432366 top level 257 path @/var/tmp ID 276 gen 1427487 top level 257 path @/var/lib/machines ID 1650 gen 1432304 top level 257 path @/var/lib/systemd/coredump ID 1893 gen 1432387 top level 258 path @/.snapshots/1113/snapshot ID 2158 gen 1418255 top level 258 path @/.snapshots/1271/snapshot ID 2159 gen 1424575 top level 258 path @/.snapshots/1272/snapshot ID 2163 gen 1427385 top level 258 path @/.snapshots/1273/snapshot ID 2164 gen 1429845 top level 258 path @/.snapshots/1274/snapshot ID 2165 gen 1429883 top level 258 path @/.snapshots/1275/snapshot ID 2166 gen 1429959 top level 258 path @/.snapshots/1276/snapshot ID 2167 gen 1429963 top level 258 path @/.snapshots/1277/snapshot It's listed in fstab like any other subvols. > UUID=ad544c37-37f9-44a4-9798-d29d3cb5db44 /var/tmp btrfs subvol=@/var/tmp 0 0 > UUID=ad544c37-37f9-44a4-9798-d29d3cb5db44 /.snapshots btrfs subvol=(a)/.snapshots 0 0 > UUID=ad544c37-37f9-44a4-9798-d29d3cb5db44 /var/lib/machines btrfs subvol=@/var/lib/machines 0 0 Full boot log is attached. systemd-246.13-1.1.x86_64 kernel-default-5.11.11-1.2.x86_64 libmount1-2.36.2-1.3.x86_64 util-linux-2.36.2-1.3.x86_64 The system has 8BiB RAM. It seems highly unlikely that the system went out of memory this early during boot. After boot and graphical user login, mem usage is like this: # free total used free shared buff/cache available Mem: 7897336 3457336 642880 767688 3797120 3305920 Swap: 8383484 23040 8360444 -- You are receiving this mail because: You are the assignee for the bug.

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[Bug 1183990] New: I think I found the cause of a kernel lock when attempting hibernation
by bugzilla_noreply＠suse.com 10 Mar '22

10 Mar '22

http://bugzilla.opensuse.org/show_bug.cgi?id=1183990 Bug ID: 1183990 Summary: I think I found the cause of a kernel lock when attempting hibernation Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.2 Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs(a)opensuse.org Reporter: carlos.e.r(a)opensuse.org QA Contact: qa-bugs(a)suse.de Found By: --- Blocker: --- Hi, For months I have been experiencing a kernel "trouble" in _some_ of my attempts to hibernate. Sometimes the hibernation would stall and not proceed. Issuing "systemctl hibernate" replied that there was one in progress, but there was no progress. I would attempt to halt the machine, but this would also stall at some point. If I pressed ctrl-alt-del several times, fast, I would see the message that it had detected the keys seven times and would halt immediately, but it did not. I had no way out but hit the power switch, and suffer the long fsck the next morning. Nothing in the logs whatsoever. Well, one day I noticed in "atop" that one of my disks went to 100% busy when this happened. So I left running another instance of gkrellm, displaying the i/o state of all my partitions in /dev/sdc, and experimenting with "sync" I noticed it was sdc9 which was active, at something like 400 Kbps. I noticed that "sync" would take sometimes a minute to complete. /dev/sdc9 is a reiserfs, and has several bind mounts: /dev/sdc9 on /data/Lareiserfs type reiserfs (rw,relatime,lazytime,user_xattr,acl) bind mounts: /dev/sdc9 on /data/homedvl type reiserfs (rw,relatime,lazytime,user_xattr,acl) /dev/sdc9 on /usr/share/flightgear type reiserfs (rw,relatime,lazytime,user_xattr,acl) /dev/sdc9 on /var/spool/news type reiserfs (rw,relatime,lazytime,user_xattr,acl) /dev/sdc9 on /home/cer/terrasync type reiserfs (rw,relatime,lazytime,user_xattr,acl) /dev/sdc9 on /usr/src type reiserfs (rw,relatime,lazytime,user_xattr,acl) Now, the directory that is active is "/var/spool/news". I use leafnode nntp proxy server. It contains 1.2 million files in about 3 GB of space. I found that if I run this sequence: time sync time sync && systemctl hibernate the machine hibernates successfully - 13 days so far, a record. Most days it takes a minute to sync, but one day, I noticed it took several minutes. Why? Well, it happened that at the same time "/usr/sbin/texpire" was working (a cronjob triggers it). This task runs for about half an hour daily expunging old posts, meaning it examines a million files. Maybe with this (tentative) report you can improve the kernel response so that it doesn't stall when trying to hibernate, assumedly when taking too long to sync. Me would think that the kernel should stop tasks before doing the sync :-? At least, running sync manually I can detect the situation and kill the busy task before suffering the crash. On the other hand, maybe there is an issue on reiserfs with "lazytime" (which is default), delaying the writes of "something" till forced to. My wild guess, it delays the timestamp that registers a file was touched. Each time I read a post, or Thunderbird scans a post, the timestamp (sorry, I don't remember which exact timestamp it is) is written, but it is not actually written but delayed "for ever". I use reiserfs for this mount because in theory it should work better than others with millions of small files. -- You are receiving this mail because: You are the assignee for the bug.

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[kernel-bugs] [Bug 1177624] New: watchdog: BUG: soft lockup - CPU#16 stuck for 23s! [qemu-system-aar:4554]
by bugzilla_noreply＠suse.com 08 Mar '22

08 Mar '22

http://bugzilla.opensuse.org/show_bug.cgi?id=1177624 Bug ID: 1177624 Summary: watchdog: BUG: soft lockup - CPU#16 stuck for 23s! [qemu-system-aar:4554] Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.2 Hardware: aarch64 OS: Other Status: NEW Severity: Major Priority: P5 - None Component: Kernel Assignee: kernel-bugs(a)opensuse.org Reporter: guillaume.gardet(a)arm.com QA Contact: qa-bugs(a)suse.de CC: afaerber(a)suse.com, dmueller(a)suse.com Found By: --- Blocker: --- Created attachment 842562 --> http://bugzilla.opensuse.org/attachment.cgi?id=842562&action=edit dmesg.log The D05 machine used as a worker for openqa.opensuse.org have been upgraded from Leap 15.1 to Leap 15.2 and shows lots of performance problems. Lots of mistyping in qemu, few screen corruptions. Checking the kernel log (in attachment), we can see some traces related to the watchdog. -- You are receiving this mail because: You are the assignee for the bug.

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[Bug 1189808] New: udp datagrams received out-of-order with kernel 5.3.18-lp152.72.1 onwards
by bugzilla_noreply＠suse.com 08 Mar '22

08 Mar '22

http://bugzilla.opensuse.org/show_bug.cgi?id=1189808 Bug ID: 1189808 Summary: udp datagrams received out-of-order with kernel 5.3.18-lp152.72.1 onwards Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.2 Hardware: x86-64 OS: openSUSE Leap 15.2 Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs(a)opensuse.org Reporter: simonalogan(a)gmail.com QA Contact: qa-bugs(a)suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36 Build Identifier: Hi folks, We have observed that Leap 15.2 kernels 5.3.18-lp152.72.1 onwards frequently deliver UDP packets out of order. The issue is 100% reproducable on Haswell hardware, for example an Intel(R) Core(TM) i3-4130 CPU @ 3.40GHz machine. I know UDP makes no guarantee of packet delivery order, but previous kernels always seemed to deliver packets in order. Did something change in 72.1 that would affect this? We noticed this affecting video streaming, but it is easily reproducable using iperf. Please see steps below. Thanks, Simon Reproducible: Always Steps to Reproduce: - Run an iperf server on the Haswell box. iperf3 -s - Now run a set of 10 tests, asking a remote client to receive 300Mbit blocks of UDP data. for iter in 0 1 2 3 4 5 6 7 8 9; do echo "iter: $iter"; iperf3 -c 192.168.1.10 -u -b 300M -R | grep "datagrams received out-of-order"; done Using kernel 5.3.18-lp152.60 I see no out-of-order datagrams. Using kernel 5.3.18-lp152.87 I see > 10k out-of-order datagrams on each run. Actual Results: Using the 5.3.18-lp152.87 kernel: iter: 0 [SUM] 0.0-10.0 sec 22283 datagrams received out-of-order iter: 1 [SUM] 0.0-10.0 sec 23910 datagrams received out-of-order iter: 2 [SUM] 0.0-10.0 sec 20661 datagrams received out-of-order iter: 3 [SUM] 0.0-10.0 sec 20182 datagrams received out-of-order iter: 4 [SUM] 0.0-10.0 sec 18224 datagrams received out-of-order iter: 5 [SUM] 0.0-10.0 sec 19448 datagrams received out-of-order iter: 6 [SUM] 0.0-10.0 sec 27404 datagrams received out-of-order iter: 7 [SUM] 0.0-10.0 sec 17781 datagrams received out-of-order iter: 8 [SUM] 0.0-10.0 sec 11182 datagrams received out-of-order iter: 9 [SUM] 0.0-10.0 sec 25676 datagrams received out-of-order Here's the full output from one run: [ 5] local 192.168.1.8 port 53594 connected to 192.168.1.10 port 5201 [ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams [ 5] 0.00-1.00 sec 35.8 MBytes 300 Mbits/sec 0.010 ms 0/25904 (0%) [ 5] 1.00-2.00 sec 35.7 MBytes 300 Mbits/sec 0.024 ms 0/25888 (0%) [ 5] 2.00-3.00 sec 35.8 MBytes 300 Mbits/sec 0.027 ms 0/25897 (0%) [ 5] 3.00-4.00 sec 35.8 MBytes 300 Mbits/sec 0.012 ms 1/25908 (0.0039%) [ 5] 4.00-5.00 sec 35.8 MBytes 300 Mbits/sec 0.021 ms -1/25897 (-0.0039%) [ 5] 5.00-6.00 sec 35.8 MBytes 300 Mbits/sec 0.017 ms 0/25897 (0%) [ 5] 6.00-7.00 sec 35.7 MBytes 300 Mbits/sec 0.032 ms 0/25887 (0%) [ 5] 7.00-8.00 sec 35.8 MBytes 300 Mbits/sec 0.012 ms 0/25909 (0%) [ 5] 8.00-9.00 sec 35.8 MBytes 300 Mbits/sec 0.009 ms 0/25899 (0%) [ 5] 9.00-10.00 sec 35.8 MBytes 300 Mbits/sec 0.015 ms 0/25897 (0%) - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams [ 5] 0.00-10.00 sec 358 MBytes 300 Mbits/sec 0.000 ms 0/259008 (0%) sender [SUM] 0.0-10.0 sec 22745 datagrams received out-of-order [ 5] 0.00-10.00 sec 358 MBytes 300 Mbits/sec 0.015 ms 0/258983 (0%) receiver Going the other way simon@localhost:~> iperf3 -c 192.168.1.10 -u -b 300M Connecting to host 192.168.1.10, port 5201 [ 5] local 192.168.1.8 port 56004 connected to 192.168.1.10 port 5201 [ ID] Interval Transfer Bitrate Total Datagrams [ 5] 0.00-1.00 sec 35.7 MBytes 300 Mbits/sec 25878 [ 5] 1.00-2.00 sec 35.8 MBytes 300 Mbits/sec 25898 [ 5] 2.00-3.00 sec 35.8 MBytes 300 Mbits/sec 25900 [ 5] 3.00-4.00 sec 35.8 MBytes 300 Mbits/sec 25910 [ 5] 4.00-5.00 sec 35.7 MBytes 300 Mbits/sec 25878 [ 5] 5.00-6.00 sec 35.8 MBytes 300 Mbits/sec 25919 [ 5] 6.00-7.00 sec 35.7 MBytes 300 Mbits/sec 25882 [ 5] 7.00-8.00 sec 35.8 MBytes 300 Mbits/sec 25897 [ 5] 8.00-9.00 sec 35.8 MBytes 300 Mbits/sec 25898 [ 5] 9.00-10.00 sec 35.8 MBytes 300 Mbits/sec 25898 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams [ 5] 0.00-10.00 sec 358 MBytes 300 Mbits/sec 0.000 ms 0/258958 (0%) sender [ 5] 0.00-10.00 sec 358 MBytes 300 Mbits/sec 0.013 ms 6/258958 (0.0023%) receiver Expected Results: Based on kernel 5.3.18-lp152.60, I expect no out-of-order datagrams. -- You are receiving this mail because: You are the assignee for the bug.

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[Bug 1196438] New: Consider switching to 300HZ default
by bugzilla_noreply＠suse.com 07 Mar '22

07 Mar '22

https://bugzilla.suse.com/show_bug.cgi?id=1196438 Bug ID: 1196438 Summary: Consider switching to 300HZ default Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs(a)opensuse.org Reporter: dmueller(a)suse.com QA Contact: qa-bugs(a)suse.de Found By: --- Blocker: --- I recently stumbled over the 300 HZ option in the kernel configuration. Currently we are using 250 HZ with IDLE_HZ. The HZ setting is used as far as I can see to determine when jiffies are advancing, so it influences the granularity of a couple of things like kvmclock, timers and so on. Also USER_HZ is 100 HZ which is the granularity to which some metrics are exported to user space. 300 is divisible without remainder by 100, unlike 250. so it appears there are good reasons for switching the default, and it is "just" 20% more timer interrupts than before, so it should not be a huge issue. I also did a test build and a 300 HZ kernel is by a few bytes smaller than a 250 HZ kernel, indicating that the compiler can optimize away a few things. I am seeing an increase in a few small functions, and I'm looking into making the code size increase go away with a source level tweak. I've benchmarked both versions in a micro benchmark that does a billion invocations of both, and while the code is larger, it runs in exactly the same runtime (+/- 3% which I consider my benchmark noise level) on a Ryzen Zen 2+. In the Kconfig description of 300 HZ option, it appears this is more recommended for multimedia usecases because it is divisible without remainder for common rates, like 30 (fps), 60 fps , 120 fps, 44.1khZ and others that are often needed. This is imho not only usable for desktop, but also for servers that are using multimedia related applications. I've seen that fedora-like distributions use 1000 HZ, arch linux uses 300 Hz and debian defaults to 250 HZ. So there is no clear trend. I'd be fine with 300 or 1000 HZ. Comments? Would like to hear your feedback before sending a change to the Tumbleweed configs. -- You are receiving this mail because: You are the assignee for the bug.

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[Bug 1193213] New: Two-fingers scrolling on touch-pad no longer working
by bugzilla_noreply＠suse.com 04 Mar '22

04 Mar '22

http://bugzilla.opensuse.org/show_bug.cgi?id=1193213 Bug ID: 1193213 Summary: Two-fingers scrolling on touch-pad no longer working Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: Other Status: NEW Severity: Major Priority: P5 - None Component: Kernel Assignee: kernel-bugs(a)opensuse.org Reporter: marco.varlese(a)suse.com QA Contact: qa-bugs(a)suse.de Found By: --- Blocker: --- With the latest update to 5.15 the touch-pad two-fingers scrolling does not work anymore. At the same time, it is possible to note an overall slowness of the pointer movement when using the touch-pad itself. Rebooting the machine to the previous kernel (5.14) shows that the previous kernel does not present the issue. -- You are receiving this mail because: You are the assignee for the bug.

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[Bug 1196213] New: kernel crash / error_code(0x0000) - not-present page
by bugzilla_noreply＠suse.com 03 Mar '22

03 Mar '22

http://bugzilla.opensuse.org/show_bug.cgi?id=1196213 Bug ID: 1196213 Summary: kernel crash / error_code(0x0000) - not-present page Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.4 Hardware: x86-64 OS: openSUSE Leap 15.4 Status: NEW Severity: Critical Priority: P5 - None Component: Kernel Assignee: kernel-bugs(a)opensuse.org Reporter: obs(a)akr.yagii.de QA Contact: qa-bugs(a)suse.de Found By: --- Blocker: --- Created attachment 856351 --> http://bugzilla.opensuse.org/attachment.cgi?id=856351&action=edit message Crash after waking up from suspend and working with firefox + ssh for a couple of minutes. Desktop freezes, mouse timer can be moved, but no reaction. Switching to another pty is not possible. cf. attached messages and hwinfo -- You are receiving this mail because: You are the assignee for the bug.

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[Bug 1182304] New: Integrated USB3 port / hub only works with AC adapter connected
by bugzilla_noreply＠suse.com 01 Mar '22

01 Mar '22

http://bugzilla.opensuse.org/show_bug.cgi?id=1182304 Bug ID: 1182304 Summary: Integrated USB3 port / hub only works with AC adapter connected Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: openSUSE Tumbleweed Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-bugs(a)opensuse.org Reporter: rs.opensuse(a)spitzenpfeil.org QA Contact: qa-bugs(a)suse.de Found By: --- Blocker: --- Kernel: 5.10.12-1-default Yet again I'm having issues with my laptops integrated USB3 port / hub. One of the USB-3 + USB-C ports only works with the AC adapter plugged in. Pulling the plug with devices connected leads to stuckage. Same hardware as in: https://bugzilla.opensuse.org/show_bug.cgi?id=1167146 -- You are receiving this mail because: You are the assignee for the bug.

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[Bug 1182880] Window decoration does not appear correctly
by bugzilla_noreply＠suse.com 28 Feb '22

28 Feb '22

https://bugzilla.suse.com/show_bug.cgi?id=1182880 https://bugzilla.suse.com/show_bug.cgi?id=1182880#c6 --- Comment #6 from antoine bl <antoine(a)miaou.org> --- Last time I checked the status of this issue (last december), it was still here. I can not test the latest TW kernel right now. I will give you some feedback asap. -- You are receiving this mail because: You are the assignee for the bug.

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