Soeren Sonnenburg wrote: > Dear all, > > I've just got this oops (causing the machine to hang finally)... > > Any ideas? > Soeren
I've seen an awful lot of oopses out there on this path, kswapd->shrink_icache_memory; some get a little further and oops in ext3_discard_reservation. A few were chalked up to bad memory, but others were not. Do you happen to use suspend/resume? Thanks to kerneloops.org... :) All code ======== 0: 12 11 adc (%ecx),%dl 2: f8 clc 3: ff 66 90 jmp *0xffffff90(%esi) 6: 83 ec 0c sub $0xc,%esp 9: 89 1c 24 mov %ebx,(%esp) c: 8d 98 60 ff ff ff lea 0xffffff60(%eax),%ebx 12: 89 74 24 04 mov %esi,0x4(%esp) 16: 89 c6 mov %eax,%esi 18: 89 7c 24 08 mov %edi,0x8(%esp) 1c: 8b 53 70 mov 0x70(%ebx),%edx 1f: 8b 7b 54 mov 0x54(%ebx),%edi 22: 85 d2 test %edx,%edx 24: 74 16 je 0x3c 26: 83 fa ff cmp $0xffffffff,%edx 29: 74 11 je 0x3c 2b:* f0 ff 0a lock decl (%edx) <-- trapping instruction Looks like it blew up in (inlined) posix_acl_release(), I think EXT3_I(inode)->i_acl passed to it was 66e88e66, in %edx. I think %edi is the i_block_alloc_info, 0f01c883, which also looks crunchy. Use after free perhaps? > BUG: unable to handle kernel paging request at virtual address 66e88e66 Nice symmetric number, anyway. :) I've seen enough of these now, something real seems to be going on but I don't know what yet. -Eric > printing eip: c01fac85 *pde = 00000000 > Oops: 0002 [#1] PREEMPT SMP > Modules linked in: hci_usb hidp rfcomm l2cap bluetooth tun cpufreq_stats > coretemp xfrm_user xfrm4_tunnel tunnel4 ipcomp esp4 ah4 aes_generic hfsplus > binfmt_misc fuse ebtable_broute bridge llc ebtable_nat ebtable_filter > ebtables eeprom applesmc hwmon input_polldev snd_hda_intel snd_pcm_oss > snd_mixer_oss snd_pcm snd_timer appletouch evdev i2c_i801 snd soundcore > snd_page_alloc sky2 video intel_agp output agpgart > > Pid: 205, comm: kswapd0 Not tainted (2.6.24-rc8-sonne #7) > EIP: 0060:[<c01fac85>] EFLAGS: 00010213 CPU: 1 > EIP is at ext3_clear_inode+0x25/0xa0 > EAX: c008f0a0 EBX: c008f000 ECX: 00000000 EDX: 66e88e66 > ESI: c008f0a0 EDI: 0f01c883 EBP: 0000004d ESP: f7d29ebc > DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 > Process kswapd0 (pid: 205, ti=f7d28000 task=f7fdf540 task.ti=f7d28000) > Stack: c008f0a0 00000000 f7d29ef8 c0192d62 0000004d c008f0a0 c008f0a8 > c019309a > e98b9ac8 00000080 00000080 f7d29ef8 c01932ec 00000000 00000080 > c008f2b0 > ea1bdcd8 0002d438 0000013f c04ac24c 000000d0 c0166e4c 00002e0b > 00000000 > Call Trace: > [<c0192d62>] clear_inode+0x62/0x140 > [<c019309a>] dispose_list+0x1a/0xe0 > [<c01932ec>] shrink_icache_memory+0x18c/0x250 > [<c0166e4c>] shrink_slab+0x12c/0x1a0 > [<c016726d>] kswapd+0x32d/0x4d0 > [<c0142020>] autoremove_wake_function+0x0/0x40 > [<c0127c5d>] complete+0x3d/0x60 > [<c0166f40>] kswapd+0x0/0x4d0 > [<c0141d52>] kthread+0x42/0x70 > [<c0141d10>] kthread+0x0/0x70 > [<c01050b3>] kernel_thread_helper+0x7/0x14 > ======================= > Code: 12 11 f8 ff 66 90 83 ec 0c 89 1c 24 8d 98 60 ff ff ff 89 74 24 04 89 c6 > 89 7c 24 08 8b 53 70 8b 7b 54 85 d2 74 16 83 fa ff 74 11 <f0> ff 0a 0f 94 c0 > 84 c0 75 51 c7 43 70 ff ff ff ff 8b 53 74 85 > EIP: [<c01fac85>] ext3_clear_inode+0x25/0xa0 SS:ESP 0068:f7d29ebc > ---[ end trace 8dd028de7ae6e34e ]--- > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
