https://bugzilla.kernel.org/show_bug.cgi?id=216388 --- Comment #4 from Robert Dinse (nanook@xxxxxxxxxx) --- I am not seeing this particular CPU stall on 5.19.4, but I am seeing other CPU stalls. I've opened three different tickets on CPU stalls because they've all been in completely different tasks but at this point I have to wonder if there isn't some common code that they are all calling or a broken structure they are all using or something similar. Rather than open 40 more tickets that all end up being a duplicate, perhaps someone familiar with the internal workings could look at these two tickets in addition to this one, #216399, which is a stall on an MDRAID task, and #216405, and then before I open yet another ticket, here is yet another CPU stall in a task worker: [ 489.383957] INFO: task worker:11403 blocked for more than 122 seconds. [ 489.383962] Not tainted 5.19.4 #1 [ 489.383964] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 489.383965] task:worker state:D stack: 0 pid:11403 ppid: 1 flags:0x00004002 [ 489.383968] Call Trace: [ 489.383970] <TASK> [ 489.383973] __schedule+0x367/0x1400 [ 489.383980] schedule+0x58/0xf0 [ 489.383983] io_schedule+0x46/0x80 [ 489.383985] folio_wait_bit_common+0x11e/0x350 [ 489.383989] ? filemap_invalidate_unlock_two+0x50/0x50 [ 489.383992] folio_wait_bit+0x18/0x20 [ 489.383994] folio_wait_writeback+0x2c/0x80 [ 489.383997] wait_on_page_writeback+0x18/0x50 [ 489.383999] __filemap_fdatawait_range+0x98/0x140 [ 489.384003] file_write_and_wait_range+0x83/0xb0 [ 489.384005] ext4_sync_file+0xf3/0x320 [ 489.384009] __x64_sys_fdatasync+0x4e/0xa0 [ 489.384012] ? syscall_enter_from_user_mode+0x50/0x70 [ 489.384014] do_syscall_64+0x58/0x80 [ 489.384017] ? sysvec_apic_timer_interrupt+0x4b/0xa0 [ 489.384020] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 489.384022] RIP: 0033:0x7f96e331bb1b [ 489.384025] RSP: 002b:00007f96788c75d0 EFLAGS: 00000293 ORIG_RAX: 000000000000004b [ 489.384027] RAX: ffffffffffffffda RBX: 00005639414e0860 RCX: 00007f96e331bb1b [ 489.384029] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000b [ 489.384030] RBP: 0000563941270890 R08: 0000000000000000 R09: 0000000000000000 [ 489.384031] R10: 00007f96788c75f0 R11: 0000000000000293 R12: 0000000000000000 [ 489.384033] R13: 00005639412708f8 R14: 00005639425cedd0 R15: 00007ffded76f3d0 [ 489.384036] </TASK> If this appears to be related I will not generate a ticket but I am not knowledgable enough about the internals to know. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
