I get the same error on x86-64 but I think it is triggered differently Different is that the last sysfile is: /sys/devices/system/cpu/cpu0/topology/physical_package_id
Also my case is not IO intensive. I'm just starting IMB with OpenMPI. And it happens 2/3x I start it. Thus very reproducible. Thus it must be related to something IMB/OpenMPI is doing. The following is the part of the stacktrace I was able to capture with rsyslog network logging. The first part somehow doesn't get send by rsyslog. (Is there a better way to get the stack trace if one doesn't have a serial port) So it seems to be triggered different but since it is the same message and the same stack trace I attached it to the same bug instead of opening a new one. I hope this is correct. Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865146] CPU 1 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865150] Modules linked in: dm_crypt rfcomm snd_hda_codec_atihdmi ppdev sco bridge stp bnep l2cap joydev snd_hda_codec_idt snd_seq_dummy snd_hda_intel snd_seq_oss snd_hda_codec snd_seq_midi snd_hwdep snd_rawmidi snd_pcm_oss snd_seq_midi_event snd_mixer_oss snd_seq snd_pcm btusb dell_wmi bluetooth snd_timer snd_seq_device uvcvideo videodev v4l1_compat dell_laptop v4l2_compat_ioctl32 snd dcdbas psmouse serio_raw sdhci_pci sdhci led_class soundcore snd_page_alloc lp parport fbcon tileblit font video ohci1394 bitblit softcursor ahci output r8169 mii ieee1394 vga16fb vgastate Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865229] Pid: 3503, comm: IMB-MPI1 Not tainted 2.6.32-23-generic #37-Ubuntu Studio 1557 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865236] RIP: 0010:[<ffffffff811dda04>] [<ffffffff811dda04>] T.1109+0x1e4/0x1f0 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865252] RSP: 0000:ffff88013307db38 EFLAGS: 00010297 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865258] RAX: 0000000000000004 RBX: ffff8801256fdda8 RCX: 0000000000000154 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865263] RDX: 0000000000000005 RSI: 0000000000000004 RDI: 0000000000000153 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865269] RBP: ffff88013307db88 R08: 0000000000000000 R09: 0000000000000000 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865275] R10: 0000000000000000 R11: ffff8801257dfbd0 R12: ffff8801256fdcf8 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865280] R13: 0000000000000004 R14: 0000000000000481 R15: ffff8801256fe078 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865288] FS: 00007f28edb12700(0000) GS:ffff880028240000(0000) knlGS:0000000000000000 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865294] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865300] CR2: 00007f28e4264200 CR3: 0000000125e57000 CR4: 00000000000006e0 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865306] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865312] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865319] Process IMB-MPI1 (pid: 3503, threadinfo ffff88013307c000, task ffff8801328a5bc0) Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865326] ffff880100000000 ffff88012ea9f800 0000000000000000 0000000000000481 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865334] <0> ffffea0003f1d458 ffff8801257dfbd0 ffffffffffff0000 ffff8801256fdda8 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865341] <0> 0000000000000481 0000000000000000 ffff88013307dbb8 ffffffff811e0030 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865361] [<ffffffff811e0030>] ext4_da_get_block_prep+0xc0/0x100 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865372] [<ffffffff8116fbc3>] __block_prepare_write+0x1e3/0x570 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865382] [<ffffffff811dff70>] ? ext4_da_get_block_prep+0x0/0x100 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865391] [<ffffffff810f478e>] ? find_get_page+0x1e/0xa0 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865400] [<ffffffff811700f4>] block_write_begin+0x64/0x100 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865410] [<ffffffff811e281d>] ext4_da_write_begin+0x17d/0x290 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865418] [<ffffffff811dff70>] ? ext4_da_get_block_prep+0x0/0x100 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865428] [<ffffffff811db05d>] ext4_page_mkwrite+0x13d/0x1a0 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865437] [<ffffffff81112b20>] __do_fault+0xd0/0x500 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865446] [<ffffffff81115fe8>] handle_mm_fault+0x1a8/0x3c0 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865456] [<ffffffff81541113>] ? thread_return+0x21b/0x418 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865464] [<ffffffff815460ea>] do_page_fault+0x12a/0x3b0 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865473] [<ffffffff81543a35>] page_fault+0x25/0x30 Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865538] RSP <ffff88013307db38> Jul 9 02:00:57 rschulz-laptop kernel: [ 547.865856] ---[ end trace a3e29a83d66abe0e ]--- then every minute or so I get the error: BUG soft lockup - CPU#0 (or other number) Call trace: alloc_pages_current (this line is sometimes there sometimes not) _spin_lock ext4_ext_get_blocks The machine is a Dell 1557 studio laptop with a CoreI7 processor. The CPU temp is high but not critical. -- ext4 kernel bug (2.6.32-22) while writing on USB device https://bugs.launchpad.net/bugs/592589 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
