https://bugzilla.suse.com/show_bug.cgi?id=1200487
https://bugzilla.suse.com/show_bug.cgi?id=1200487#c11
--- Comment #11 from Jiri Slaby
Results show some small improvements for some workloads and at least one functional failure. The mmtests configuration that failed is functional-ltp-cve-xfs for the pty03. The other tests were not complete as I write this as the machine had frozen but will be started shortly. The dmesg for the failure was
[ 2465.240179] INFO: task pty03:10270 blocked for more than 491 seconds. [ 2465.240188] Tainted: G E 5.18.4-lto-enabled #1 [ 2465.240192] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2465.240195] task:pty03 state:D stack: 0 pid:10270 ppid: 1 flags:0x00004004 [ 2465.240204] Call Trace: [ 2465.240207] <TASK> [ 2465.240212] __schedule+0x344/0x12e0 [ 2465.240231] ? number+0x349/0x400 [ 2465.240242] schedule+0x5b/0xd0 [ 2465.240249] schedule_timeout+0x9f/0xd0 [ 2465.240260] wait_for_completion+0x7d/0x130 [ 2465.240267] devtmpfs_delete_node+0xc7/0x100 [ 2465.240276] ? kernfs_put+0x107/0x1c0 [ 2465.240290] device_del+0x408/0x4f0 [ 2465.240304] ? class_find_device+0xde/0x1a0 [ 2465.240313] device_unregister+0xe/0x60 [ 2465.240320] tty_unregister_device+0x5c/0xc0 [ 2465.240335] gsmld_close+0x41/0xc0 [n_gsm 3758e2ed62c48c2b7e0f63935531528aa58bfb68]
I'm afraid this is a consequence of 5.18 changes in n_gsm done by D. Starke. We've exchanged few messages with him, but he is unable to reproduce. I'm not sure anyone cares about n_gsm except him. Maybe Siemens is trying to resurrect it... So the easiest way to work around this is simply disabling CONFIG_N_GSM -- would it be possible to restart the functional tests without n_gsm?
[ 2465.240348] tty_ldisc_hangup+0x131/0x240 [ 2465.240358] __tty_hangup+0x1f3/0x370 [ 2465.240366] tty_ioctl+0x74e/0x9d0
...
Otherwise it was marginal differences.
Thanks for the measurements. I'm a bit surprised there are any differences. I'll look into the results more deeply. -- You are receiving this mail because: You are on the CC list for the bug.