Greetings, I'm getting occasional video lock-ups, and while checking logs I found these:
=== [ 297.445296] BUG: using smp_processor_id() in preemptible [00000000] code: claws-mail/1635 [ 297.445319] caller is jprobe_return+0x12/0x25 [ 297.445332] CPU: 1 PID: 1635 Comm: claws-mail Not tainted 4.14.0 #1 [ 297.445341] Hardware name: Micro-Star International Co., Ltd. GX780/GT780/MS-1761, BIOS E1761IMS V3.01 05/02/2011 [ 297.445349] Call Trace: [ 297.445372] dump_stack+0x9f/0xe1 [ 297.445392] check_preemption_disabled+0xec/0xf0 [ 297.445409] jprobe_return+0x12/0x25 [ 297.445425] tcp_v4_do_rcv+0x7f/0x1a0 [ 297.445443] __release_sock+0x6d/0x100 [ 297.445462] release_sock+0x2b/0xb0 [ 297.445475] tcp_recvmsg+0x300/0x8f0 [ 297.445504] ? __lock_acquire+0x3ee/0x1610 [ 297.445517] ? core_sys_select+0x240/0x3e0 [ 297.445541] inet_recvmsg+0x51/0x1b0 [ 297.445566] sock_read_iter+0x8c/0xd0 [ 297.445598] __vfs_read+0xd5/0x140 [ 297.445632] vfs_read+0x9e/0x150 [ 297.445652] SyS_read+0x45/0xa0 [ 297.445675] entry_SYSCALL_64_fastpath+0x23/0xc2 [ 297.445687] RIP: 0033:0x7ff2536001b8 [ 297.445696] RSP: 002b:00007ff247152890 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 297.445713] RAX: ffffffffffffffda RBX: ffff9cd088ccbff0 RCX: 00007ff2536001b8 [ 297.445721] RDX: 0000000000000005 RSI: 00007ff23c02bb43 RDI: 0000000000000013 [ 297.445730] RBP: 00007ff23c02bb43 R08: 0000000000000000 R09: 00007ff23c00e520 [ 297.445738] R10: 0000000000100000 R11: 0000000000000246 R12: 0000000000000086 [ 297.445746] R13: 000000000000002f R14: 00007ff254d3c998 R15: 0000000000000001 ... [ 366.965766] BUG: using smp_processor_id() in preemptible [00000000] code: Socket Thread/1435 [ 366.965769] caller is jprobe_return+0x12/0x25 [ 366.965773] CPU: 0 PID: 1435 Comm: Socket Thread Not tainted 4.14.0 #1 [ 366.965775] Hardware name: Micro-Star International Co., Ltd. GX780/GT780/MS-1761, BIOS E1761IMS V3.01 05/02/2011 [ 366.965777] Call Trace: [ 366.965780] dump_stack+0x9f/0xe1 [ 366.965786] check_preemption_disabled+0xec/0xf0 [ 366.965790] jprobe_return+0x12/0x25 [ 366.965793] tcp_v4_do_rcv+0x7f/0x1a0 [ 366.965797] __release_sock+0x6d/0x100 [ 366.965811] release_sock+0x2b/0xb0 [ 366.965813] tcp_recvmsg+0x300/0x8f0 [ 366.965826] inet_recvmsg+0x51/0x1b0 [ 366.965834] SYSC_recvfrom+0xc6/0x130 [ 366.965845] ? entry_SYSCALL_64_fastpath+0x5/0xc2 [ 366.965848] ? trace_hardirqs_on_caller+0xcb/0x200 [ 366.965851] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 366.965858] entry_SYSCALL_64_fastpath+0x23/0xc2 [ 366.965860] RIP: 0033:0x7f475ab7e5da [ 366.965862] RSP: 002b:00007f47438fc8b0 EFLAGS: 00000246 ORIG_RAX: 000000000000002d [ 366.965864] RAX: ffffffffffffffda RBX: ffff9cd088ae7ff0 RCX: 00007f475ab7e5da [ 366.965865] RDX: 0000000000008000 RSI: 00007f4721202000 RDI: 000000000000007c [ 366.965867] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 366.965868] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000086 [ 366.965869] R13: 00007f47212025a8 R14: 0000000000007a58 R15: 00007f474ba1e5f2 [ 366.966571] BUG: using smp_processor_id() in preemptible [00000000] code: Socket Thread/1435 [ 366.966574] caller is jprobe_return+0x12/0x25 [ 366.966576] CPU: 0 PID: 1435 Comm: Socket Thread Not tainted 4.14.0 #1 [ 366.966577] Hardware name: Micro-Star International Co., Ltd. GX780/GT780/MS-1761, BIOS E1761IMS V3.01 05/02/2011 [ 366.966578] Call Trace: [ 366.966582] dump_stack+0x9f/0xe1 [ 366.966586] check_preemption_disabled+0xec/0xf0 [ 366.966592] jprobe_return+0x12/0x25 [ 366.966596] tcp_v4_do_rcv+0x7f/0x1a0 [ 366.966601] __release_sock+0x6d/0x100 [ 366.966606] release_sock+0x2b/0xb0 [ 366.966610] tcp_recvmsg+0x300/0x8f0 [ 366.966622] inet_recvmsg+0x51/0x1b0 [ 366.966630] SYSC_recvfrom+0xc6/0x130 [ 366.966643] ? entry_SYSCALL_64_fastpath+0x5/0xc2 [ 366.966647] ? trace_hardirqs_on_caller+0xcb/0x200 [ 366.966651] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 366.966667] entry_SYSCALL_64_fastpath+0x23/0xc2 [ 366.966669] RIP: 0033:0x7f475ab7e5da [ 366.966670] RSP: 002b:00007f47438fc8b0 EFLAGS: 00000246 ORIG_RAX: 000000000000002d [ 366.966673] RAX: ffffffffffffffda RBX: ffff9cd088ae7ff0 RCX: 00007f475ab7e5da [ 366.966674] RDX: 0000000000008000 RSI: 00007f4721202000 RDI: 000000000000007c [ 366.966676] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 366.966677] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000086 [ 366.966679] R13: 00007f47438fca70 R14: 00000000000005a8 R15: 00007f4721202000 [ 366.979991] BUG: using smp_processor_id() in preemptible [00000000] code: Socket Thread/1435 [ 366.979999] caller is jprobe_return+0x12/0x25 [ 366.980004] CPU: 0 PID: 1435 Comm: Socket Thread Not tainted 4.14.0 #1 [ 366.980007] Hardware name: Micro-Star International Co., Ltd. GX780/GT780/MS-1761, BIOS E1761IMS V3.01 05/02/2011 [ 366.980012] Call Trace: [ 366.980023] dump_stack+0x9f/0xe1 [ 366.980033] check_preemption_disabled+0xec/0xf0 [ 366.980040] jprobe_return+0x12/0x25 [ 366.980046] tcp_v4_do_rcv+0x7f/0x1a0 [ 366.980054] __release_sock+0x6d/0x100 [ 366.980062] release_sock+0x2b/0xb0 [ 366.980068] tcp_recvmsg+0x300/0x8f0 [ 366.980105] inet_recvmsg+0x51/0x1b0 [ 366.980117] SYSC_recvfrom+0xc6/0x130 [ 366.980130] ? entry_SYSCALL_64_fastpath+0x5/0xc2 [ 366.980134] ? trace_hardirqs_on_caller+0xcb/0x200 [ 366.980137] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 366.980145] entry_SYSCALL_64_fastpath+0x23/0xc2 [ 366.980147] RIP: 0033:0x7f475ab7e5da [ 366.980149] RSP: 002b:00007f47438fc8b0 EFLAGS: 00000246 ORIG_RAX: 000000000000002d [ 366.980152] RAX: ffffffffffffffda RBX: ffff9cd088ae7ff0 RCX: 00007f475ab7e5da [ 366.980154] RDX: 0000000000008000 RSI: 00007f4721202000 RDI: 000000000000007c [ 366.980157] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 366.980158] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000086 [ 366.980161] R13: 0000000000008000 R14: 00007f47438fca70 R15: 00007f474ba1e5f2 === There are many of those, and they keep popping up throughout normal usage. Sometimes, though, things go awry but without much information: === Jan 10 17:54:39 kernel: [ 2717.421681] note: Socket Thread[1812] exited with preempt_count 1 === It seems that when the event above happens (preempt_count 1), a chain of events unfolds and my video locks up. Sometimes the mouse pointer will continue to work; others it is a full lockup. I understand this is not necessarily linked to the network stack, but as it happens, the traces always have the network stack in common and the application that exits has always been one that deals with network (Firefox and Claws Mail so far). This has been happening for quite a while now, at least since 4.9 (probably before that). I don't know how to trigger this: it could take as much as 45 days to "lock up" or as little as a few minutes in sequence. Yesterday, the first time it locked up took around 20 days, and then less than 10 minutes. The best information I have are dumps from SysRq: === Jan 10 17:54:39 darkbook kernel: [ 2717.421681] note: Socket Thread[1812] exited with preempt_count 1 Jan 10 17:55:45 darkbook acpid: client 1084[0:100] has disconnected Jan 10 17:55:46 darkbook /usr/sbin/gpm[970]: *** info [mice.c(1990)]: Jan 10 17:55:46 darkbook /usr/sbin/gpm[970]: imps2: Auto-detected intellimouse PS/2 Jan 10 17:56:12 darkbook kernel: [ 2811.376514] sysrq: SysRq : Show Locks Held Jan 10 17:56:14 darkbook kernel: [ 2813.214132] sysrq: SysRq : Show backtrace of all active CPUs Jan 10 17:56:14 darkbook kernel: [ 2813.215131] Sending NMI from CPU 0 to CPUs 1-7: Jan 10 17:56:16 darkbook kernel: [ 2814.975638] sysrq: SysRq : Show Blocked State Jan 10 17:56:16 darkbook kernel: [ 2814.975679] task PC stack pid father Jan 10 17:56:20 darkbook kernel: [ 2819.060962] localStorage DB S 0 1884 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.061483] LoadRoots S 0 1900 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.061970] SysProxySetting S 0 1901 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.062477] dconf worker S 0 1902 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.063222] ProxyResolution S 0 1903 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.063727] DataStorage S 0 1904 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.064175] URL Classifier S 0 1905 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.064680] Classif~ Update S 0 1906 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.065182] DataStorage S 0 1908 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.065718] DataStorage S 0 1909 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.066151] SaveScripts S 0 1910 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.066684] Cache I/O S 0 1911 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.067149] mozStorage #1 S 0 1913 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.067693] mozStorage #2 S 0 1916 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.068222] QuotaManager IO S 0 1917 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.068721] mozStorage #3 S 0 1918 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.069210] mozStorage #4 S 0 1919 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.069714] mozStorage #5 S 0 1922 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.070242] DOM Worker S 0 1923 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.070743] DOM Worker S 0 1947 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.071272] IdentityCrypto S 0 1967 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.071799] mozStorage #7 S 0 1976 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.072267] mozStorage #8 S 0 1978 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.072775] DNS Resolver #7 S 0 2265 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.073256] DNS Resolver #9 S 0 2860 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.073763] DNS Res~ver #10 S 0 2861 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.074266] DNS Res~ver #11 S 0 2862 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.074765] speechd init S 0 2894 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.075268] BgFileSaver S 0 2916 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.075779] mozStorage #9 S 0 2919 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.076270] DOMCacheThread S 0 2939 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.076793] Web Content S 0 1852 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.077632] Chrome_~dThread S 0 1855 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.078069] JS Watchdog S 0 1858 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.078634] JS Helper S 0 1859 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.079164] JS Helper S 0 1860 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.079689] JS Helper S 0 1861 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.080219] JS Helper S 0 1862 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.080785] JS Helper S 0 1863 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.081369] JS Helper S 0 1864 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.081901] JS Helper S 0 1865 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.082450] JS Helper S 0 1866 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.082964] JS Helper S 0 1867 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.083507] JS Helper S 0 1868 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.084043] JS Helper S 0 1869 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.084610] JS Helper S 0 1870 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.085146] Socket Thread S 0 1871 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.085872] Hang Monitor S 0 1872 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.086379] Timer S 0 1873 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.086886] ImgDecoder #1 S 0 1874 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.087411] ImgDecoder #2 S 0 1875 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.087960] ImgDecoder #3 S 0 1876 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.088527] ImgDecoder #4 S 0 1877 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.089036] ImgDecoder #5 S 0 1878 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.089578] ImgDecoder #6 S 0 1879 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.090130] ImgDecoder #7 S 0 1880 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.090673] ImageIO S 0 1881 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.091220] ImageBr~geChild S 0 1882 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.092005] VideoChild S 0 1883 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.092782] threaded-ml S 0 1887 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.093679] ProcessHangMon S 0 1888 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.094371] ProfilerChild S 0 1889 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.094984] gmain S 0 1890 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.095822] gdbus S 0 1891 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.096438] StyleThread#0 S 0 1893 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.096909] StyleThread#1 S 0 1894 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.097453] StyleThread#2 S 0 1895 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.098059] StyleThread#3 S 0 1896 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.098717] StyleThread#4 S 0 1897 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.099407] StyleThread#5 S 0 1898 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.100011] HTML5 Parser S 0 1914 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.100616] dconf worker S 0 1979 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.101536] MediaPl~ack #13 S 0 2853 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.102052] MediaPl~ack #14 S 0 2854 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.102605] DOM Worker S 0 2889 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.103124] DOM Worker S 0 2893 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.103708] MediaTimer #3 S 0 2898 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.104244] MediaPl~ack #17 S 0 2900 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.104802] MediaPl~ack #18 S 0 2901 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.105328] MediaPD~oder #6 S 0 2902 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.105835] MediaPD~oder #7 S 0 2903 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.106378] MediaPD~oder #8 S 0 2904 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.106883] MediaPD~oder #9 S 0 2905 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.107405] DOM Worker S 0 2938 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.107937] SubtleCrypto #1 S 0 2947 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.108457] StreamTrans #16 S 0 2954 1809 0x00000100 Jan 10 17:56:20 darkbook kernel: [ 2819.109021] fish S 0 2165 1422 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.109522] ssh S 0 2214 2165 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.110386] kworker/0:4 I 0 2327 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.110599] xfrun4 S 0 2329 1127 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.111390] gmain S 0 2330 1127 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.112123] gdbus S 0 2331 1127 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.112797] xmms S 0 2337 2329 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.113584] xmms S 0 2338 2329 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.114426] xmms S 0 2339 2329 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.114842] xmms S 0 2340 2329 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.115265] xmms S 0 2345 2329 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.116489] xmms S 0 2847 2329 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.117433] threaded-ml S 0 2848 2329 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.118185] xmms S 0 2849 2329 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.118992] kworker/0:6 I 0 2346 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.119203] kworker/0:14 I 0 2362 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.119424] fish S 0 2414 1422 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.120179] kworker/u16:1 I 0 2455 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.120408] kworker/0:23 I 0 2520 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.120617] kworker/0:25 I 0 2540 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.120821] kworker/u16:0 I 0 2641 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.121027] kworker/2:1 I 0 2763 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.121231] kworker/0:0 I 0 2782 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.121451] kworker/0:1 I 0 2850 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.121657] kworker/0:2 I 0 2866 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.121861] kworker/0:3 I 0 2867 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.122066] kworker/2:0 I 0 2877 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.122273] kworker/0:5 I 0 2890 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.122495] kworker/0:7 I 0 2908 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.122705] kworker/0:8 I 0 2914 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.122910] kworker/0:9 I 0 2944 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.123115] kworker/0:10 I 0 2945 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.123335] kworker/0:13 I 0 2978 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.123543] kworker/0:15 I 0 2980 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.123749] xterm S 0 2981 1126 0x00000000 Jan 10 17:56:20 darkbook kernel: [ 2819.124568] kworker/0:16 I 0 2984 2 0x80000000 Jan 10 17:56:20 darkbook kernel: [ 2819.124775] kworker/0:17 I 0 2987 2 0x80000000 Jan 10 17:56:21 darkbook kernel: [ 2819.173457] Showing busy workqueues and worker pools: Jan 10 17:56:21 darkbook kernel: [ 2819.173480] workqueue events_freezable: flags=0x4 Jan 10 17:56:21 darkbook kernel: [ 2819.173502] pwq 4: cpus=2 node=0 flags=0x0 nice=0 active=1/256 Jan 10 17:56:21 darkbook kernel: [ 2819.173540] in-flight: 1635:mmc_rescan Jan 10 17:56:21 darkbook kernel: [ 2819.173599] pool 4: cpus=2 node=0 flags=0x0 nice=0 hung=0s workers=3 idle: 2877 2763 Jan 10 17:56:21 darkbook kernel: [ 2820.056697] sysrq: SysRq : Show clockevent devices & pending hrtimers (no others) Jan 10 17:56:23 darkbook kernel: [ 2821.458675] sysrq: SysRq : Show Regs Jan 10 17:56:23 darkbook kernel: [ 2821.459453] Jan 10 17:56:23 darkbook kernel: [ 2821.459464] CPU#0: ctrl: 000000000000000f Jan 10 17:56:23 darkbook kernel: [ 2821.459482] CPU#0: status: 8000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459500] CPU#0: overflow: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459518] CPU#0: fixed: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459537] CPU#0: pebs: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459555] CPU#0: debugctl: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459573] CPU#0: active: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459592] CPU#0: gen-PMC0 ctrl: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459611] CPU#0: gen-PMC0 count: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459630] CPU#0: gen-PMC0 left: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459650] CPU#0: gen-PMC1 ctrl: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459670] CPU#0: gen-PMC1 count: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459689] CPU#0: gen-PMC1 left: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459709] CPU#0: gen-PMC2 ctrl: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459728] CPU#0: gen-PMC2 count: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459748] CPU#0: gen-PMC2 left: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459767] CPU#0: gen-PMC3 ctrl: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459787] CPU#0: gen-PMC3 count: 000000000000ffff Jan 10 17:56:23 darkbook kernel: [ 2821.459806] CPU#0: gen-PMC3 left: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459826] CPU#0: fixed-PMC0 count: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459846] CPU#0: fixed-PMC1 count: 0000000000000000 Jan 10 17:56:23 darkbook kernel: [ 2821.459866] CPU#0: fixed-PMC2 count: 0000000000000000 Jan 10 17:56:24 darkbook kernel: [ 2822.972704] sysrq: SysRq : Show Memory Jan 10 17:56:24 darkbook kernel: [ 2822.973707] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Jan 10 17:56:28 darkbook kernel: [ 2827.075135] sysrq: SysRq : Emergency Sync Jan 10 17:56:31 darkbook exiting on signal 15 === The last one is me issuing a terminate-all-tasks so I can safely reboot. This is a regular build with many tracing/tracers options plus some debugging info. It is available at <http://rnsanchez.wait4.org/config-4.14>, if you need it. Let me know if you need more info. Cheers, -- Ricardo Nabinger Sanchez http://rnsanchez.wait4.org/ "You never learned anything by doing it right."
