I have attached it. Please, tell me if you do not get the attachment. Thank you for looking into this. Regards, Holger On Mon, 3 Feb 2014, Michal Hocko wrote: > [CCing linux-mm] > > Does this ring bells? I haven't checked very deeply but it doesn't seem > to be fixed since 3.12. > > Hoolger, could you post your config, please? > > On Fri 31-01-14 21:12:27, Holger Kiehl wrote: >> Hello, >> >> today one of our system got a kernel bug message. It kept on running >> but more and more process begin to be stuck in D state (eg. a simple w >> command would never return) and I eventually had to reboot. Here the >> full message: >> >> Jan 31 13:07:43 asterix kernel: BUG: unable to handle kernel NULL pointer dereference at 000000000000001c >> Jan 31 13:07:43 asterix kernel: IP: [] isolate_migratepages_range+0x32d/0x653 >> Jan 31 13:07:43 asterix kernel: PGD 7d3074067 PUD 7d3073067 PMD 0 >> Jan 31 13:07:43 asterix kernel: Oops: 0000 [#1] SMP >> Jan 31 13:07:43 asterix kernel: Modules linked in: drbd lru_cache coretemp ipmi_devintf bonding nf_conntrack_ftp binfmt_misc usbhid i2c_i801 sg ehci_pci i2c_core ehci_hcd uhci_hcd i5000_edac i5k_amb ipmi_si ipmi_msghandler usbcore usb_common [last unloaded: microcode] >> Jan 31 13:07:43 asterix kernel: CPU: 5 PID: 14164 Comm: java Not tainted 3.12.9 #1 >> Jan 31 13:07:43 asterix kernel: Hardware name: FUJITSU SIEMENS PRIMERGY RX300 S4 /D2519, BIOS 4.06 Rev. 1.04.2519 07/30/2008 >> Jan 31 13:07:43 asterix kernel: task: ffff8807d30b08c0 ti: ffff8807d30b2000 task.ti: ffff8807d30b2000 >> Jan 31 13:07:43 asterix kernel: RIP: 0010:[] [] isolate_migratepages_range+0x32d/0x653 >> Jan 31 13:07:43 asterix kernel: RSP: 0000:ffff8807d30b3928 EFLAGS: 00010286 >> Jan 31 13:07:43 asterix kernel: RAX: 0000000000000000 RBX: 000000000020ec09 RCX: 0000000000000002 >> Jan 31 13:07:43 asterix kernel: RDX: 2c00000000008000 RSI: 0000000000000004 RDI: 000000000000006c >> Jan 31 13:07:43 asterix kernel: RBP: ffff8807d30b39f8 R08: ffff88083fbde390 R09: 0000000000000001 >> Jan 31 13:07:43 asterix kernel: R10: 0000000000000000 R11: ffffea000733a000 R12: ffff8807d30b3a58 >> Jan 31 13:07:43 asterix kernel: R13: ffffea000733a1f8 R14: 0000000000000000 R15: ffff88083ffe1d80 >> Jan 31 13:07:43 asterix kernel: FS: 00007f9d9e72f910(0000) GS:ffff88083fd40000(0000) knlGS:0000000000000000 >> Jan 31 13:07:43 asterix kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b >> Jan 31 13:07:43 asterix kernel: CR2: 000000000000001c CR3: 00000007d3070000 CR4: 00000000000407e0 >> Jan 31 13:07:43 asterix kernel: Stack: >> Jan 31 13:07:43 asterix kernel: 0000000000000009 ffff88083ffe16c0 ffffea00002e6af0 ffff8807d30b3998 >> Jan 31 13:07:43 asterix kernel: ffff8807d30b2010 00ff8807d30b08c0 ffff8807d30b08c0 000000000020f000 >> Jan 31 13:07:43 asterix kernel: 0000000000000000 000000000000083b 000000000000000a ffff8807d30b3a68 >> Jan 31 13:07:43 asterix kernel: Call Trace: >> Jan 31 13:07:43 asterix kernel: [] ? lru_add_drain_cpu+0x25/0x97 >> Jan 31 13:07:43 asterix kernel: [] compact_zone+0x2b5/0x319 >> Jan 31 13:07:43 asterix kernel: [] ? put_super+0x20/0x2c >> Jan 31 13:07:43 asterix kernel: [] compact_zone_order+0xad/0xc4 >> Jan 31 13:07:43 asterix kernel: [] try_to_compact_pages+0x91/0xe8 >> Jan 31 13:07:43 asterix kernel: [] ? page_alloc_cpu_notify+0x3e/0x3e >> Jan 31 13:07:43 asterix kernel: [] __alloc_pages_direct_compact+0xae/0x195 >> Jan 31 13:07:43 asterix kernel: [] __alloc_pages_nodemask+0x772/0x7b5 >> Jan 31 13:07:43 asterix kernel: [] alloc_pages_vma+0xd6/0x101 >> Jan 31 13:07:43 asterix kernel: [] do_huge_pmd_anonymous_page+0x199/0x2ee >> Jan 31 13:07:43 asterix kernel: [] handle_mm_fault+0x1b7/0xceb >> Jan 31 13:07:43 asterix kernel: [] ? __dequeue_entity+0x2e/0x33 >> Jan 31 13:07:43 asterix kernel: [] __do_page_fault+0x3bd/0x3e4 >> Jan 31 13:07:43 asterix kernel: [] ? mprotect_fixup+0x1c9/0x1fb >> Jan 31 13:07:43 asterix kernel: [] ? vm_mmap_pgoff+0x6d/0x8f >> Jan 31 13:07:43 asterix kernel: [] ? SyS_futex+0x103/0x13d >> Jan 31 13:07:43 asterix kernel: [] do_page_fault+0x9/0xb >> Jan 31 13:07:43 asterix kernel: [] page_fault+0x22/0x30 >> Jan 31 13:07:43 asterix kernel: Code: 00 41 f7 45 00 ff ff ff 01 0f 85 43 02 00 00 41 8b 45 18 85 c0 0f 89 37 02 00 00 49 8b 55 00 4c 89 e8 66 85 d2 79 04 49 8b 45 30 <8b> 40 1c 83 f8 01 0f 85 1b 02 00 00 49 8b 55 08 30 c0 48 85 d2 >> Jan 31 13:07:43 asterix kernel: RIP [] isolate_migratepages_range+0x32d/0x653 >> Jan 31 13:07:43 asterix kernel: RSP >> Jan 31 13:07:43 asterix kernel: CR2: 000000000000001c >> Jan 31 13:07:43 asterix kernel: ---[ end trace fba75c5b0b9175ea ]--- >> >> Kernel is a plain kernel.org kernel 3.12.9 and it uses drbd to replicate >> data to another host. Any idea what the cause of this bug is? Could it be >> hardware? The system has been running now for five years without any problems. >> >> Please CC me since I am not on the list. >> >> Many thanks in advance. >> >> Regards, >> Holger >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at http://www.tux.org/lkml/ > > -- > Michal Hocko > SUSE Labs >