Today my client crashed while reading emails with kmail/kontact. I am using a backported version 1.6.9-2 from debian jessie which additionally include the patch for reporting 2TB disk free. We use this version on all our client starting from 14 Jun 2014 and its the first time this happened. I guess there is no easy way to reproduce it. I found nothing relevant in the changelog till 1.6.10-3 and 1.6.11~pre1-1 which are the newest versions for debian.
dmesg output: [4367269.820966] BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 [4367269.820971] IP: [<ffffffffa0914240>] afs_linux_dentry_revalidate+0x25/0x46f [openafs] [4367269.820985] PGD 29aede067 PUD 2695a6067 PMD 0 [4367269.820988] Oops: 0000 [#1] SMP [4367269.820990] CPU 1 [4367269.820991] Modules linked in: vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) binfmt_misc nls_cp437 nls_utf8 isofs loop btrfs libcrc32c zlib_deflate ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs reiserfs ext3 jbd efivars snd_seq_dummy pci_stub openafs(P) parport_pc ppdev lp parport bnep rfcomm bluetooth rfkill cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_conservative ib_iser rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi nfsd nfs nfs_acl auth_rpcgss fscache lockd sunrpc fuse xfs ext2 blcr(O) blcr_imports(O) ohci_hcd snd_hda_codec_hdmi snd_hda_codec_realtek psmouse fglrx(P) joydev mxm_wmi evdev snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event coretemp snd_rawmidi crc32c_intel pcspkr snd_seq serio_raw snd_seq_device snd_timer i2c_i801 i2c_core iTCO_wdt snd iTCO_vendor_support soundcore i7core_edac edac_core asus_atk0110 wmi acpi_cpufreq mperf processor button thermal_sys ext4 crc16 jbd2 mbcache dm_mod md_mod sr_mod ata_generic cdrom usbhid sg hid sd_mod usb_storage crc_t10dif pata_jmicron uhci_hcd e1000 floppy ahci libahci libata ehci_hcd xhci_hcd firewire_ohci scsi_mod usbcore firewire_core crc_itu_t usb_common [last unloaded: vboxdrv] [4367269.821051] [4367269.821053] Pid: 13995, comm: kontact Tainted: P O 3.2.0-4-amd64 #1 Debian 3.2.63-2+deb7u1 System manufacturer System Product Name/P6T [4367269.821056] RIP: 0010:[<ffffffffa0914240>] [<ffffffffa0914240>] afs_linux_dentry_revalidate+0x25/0x46f [openafs] [4367269.821063] RSP: 0018:ffff88005f93dc98 EFLAGS: 00010246 [4367269.821064] RAX: 0000000000000000 RBX: ffff8802c959a200 RCX: ffffc90000002000 [4367269.821065] RDX: 0000000000000041 RSI: 0000000000000000 RDI: ffff8802c959a200 [4367269.821067] RBP: ffff880282255e00 R08: 0000000000000009 R09: ffff8802c959a238 [4367269.821068] R10: ffff8804ad05b9c0 R11: ffff8804ad05b9c0 R12: 0000000000000000 [4367269.821070] R13: ffff88005f93de08 R14: ffff88053323c840 R15: ffff88061736e240 [4367269.821072] FS: 00007f96eaf4c760(0000) GS:ffff88063fc20000(0000) knlGS:0000000000000000 [4367269.821073] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [4367269.821075] CR2: 0000000000000038 CR3: 000000035c3dc000 CR4: 00000000000006e0 [4367269.821076] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [4367269.821078] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [4367269.821079] Process kontact (pid: 13995, threadinfo ffff88005f93c000, task ffff88053323c840) [4367269.821080] Stack: [4367269.821082] ffff8805e9a8bc00 0000000000000008 ffff88005f93dd2c ffffffffa08efbc8 [4367269.821084] 0000000000000000 ffff88005f93dd7c ffff88005f93dd2c 0000000000000040 [4367269.821087] ffff88061736e240 0000000000000000 0000000000000000 ffff88053323c840 [4367269.821089] Call Trace: [4367269.821099] [<ffffffffa08efbc8>] ? afs_AccessOK+0x72/0x166 [openafs] [4367269.821108] [<ffffffffa08f01de>] ? afs_access+0x522/0x5bc [openafs] [4367269.821113] [<ffffffff8110bfc8>] ? __d_lookup+0x3e/0xce [4367269.821117] [<ffffffff81103f55>] ? __lookup_hash.part.29+0x5d/0xa7 [4367269.821119] [<ffffffff811057bd>] ? lookup_one_len+0xc5/0xd7 [4367269.821125] [<ffffffffa09113f5>] ? afs_linux_unlink+0x12e/0x334 [openafs] [4367269.821129] [<ffffffff81036618>] ? should_resched+0x5/0x23 [4367269.821131] [<ffffffff811052ac>] ? vfs_unlink+0x68/0xbb [4367269.821133] [<ffffffff811061a6>] ? do_unlinkat+0xd0/0x156 [4367269.821136] [<ffffffff81110e43>] ? mntput_no_expire+0x1e/0xc9 [4367269.821140] [<ffffffff81355a92>] ? system_call_fastpath+0x16/0x1b [4367269.821141] Code: 00 48 89 47 70 c3 41 56 41 55 41 54 55 53 48 89 fb 48 81 ec 10 01 00 00 65 48 8b 04 25 28 00 00 00 48 89 84 24 08 01 00 00 31 c0 <f6> 46 38 40 48 c7 84 24 a0 00 00 00 00 00 00 00 0f 85 dd 03 00 [4367269.821159] RIP [<ffffffffa0914240>] afs_linux_dentry_revalidate+0x25/0x46f [openafs] [4367269.821165] RSP <ffff88005f93dc98> [4367269.821166] CR2: 0000000000000038 [4367269.821168] ---[ end trace 00865b118ab2fd01 ]--- -- Markus Koeberl Graz University of Technology Signal Processing and Speech Communication Laboratory E-mail: markus.koeb...@tugraz.at _______________________________________________ OpenAFS-info mailing list OpenAFS-info@openafs.org https://lists.openafs.org/mailman/listinfo/openafs-info
