Anyone seeing this oops with recent kernels? This started after I upgraded the Ubuntu distribution on my laptop. It doesn't happen every time; usually only when a reboot would be inconvenient. :-) I have only observed it happening when my wireless link goes dead (either momentarily due to loss of signal or deliberately because I used the rfkill switch).
Kernel is Ubuntu linux-3.11.0-23-generic OpenAFS is 1.6.9 from Ubuntu kernel NULL pointer dereference at 0000000000000010 kernel: [316431.200220] IP: [<ffffffffa078dd50>] afs_LoopServers+0x480/0x810 [openafs] kernel: [316431.200223] PGD 0 kernel: [316431.200226] Oops: 0000 [#1] SMP kernel: [316431.200286] Modules linked in: nls_utf8 isofs iwl4965 snd_hrtimer appletalk psnap openafs(POF) pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp bridge stp llc ip6table_filter ip6_tables iptable_filter ip_tables ebt able_nat ebtables x_tables bnep rfcomm bluetooth binfmt_misc ext2 kvm_intel kvm hp_wmi sparse_keymap snd_hda_codec_conexant uvcvideo snd_hda_intel videobuf2_vmalloc videobuf2_memops arc4 videobuf2_core snd_hd a_codec videodev snd_hwdep iwlegacy snd_pcm snd_page_alloc snd_seq_midi joydev mac80211 snd_seq_midi_event snd_rawmidi microcode snd_seq snd_seq_device snd_timer dm_multipath cfg80211 psmouse snd soundcore se rio_raw scsi_dh r852 r592 sm_common nand nand_bch nand_ids memstick lpc_ich bch mac_hid parport_pc ppdev sm_ftl mtd_blkdevs nand_ecc mtd coretemp firewire_sbp2 lp parport dm_crypt nbd xts gf128mul hid_generic usbhid hid firewire_ohci ahci libahci sdhci_pci sdhci firewire_core crc_itu_t i915 wmi video i2c_algo_bit drm_kms_helper drm sky2 [last unloaded: iwl4965] kernel: [316431.200308] CPU: 1 PID: 3720 Comm: afs_checkserver Tainted: PF W O 3.11.0-23-generic #40-Ubuntu kernel: [316431.200309] Hardware name: Hewlett-Packard HP Pavilion dv2700 Notebook PC/30CD, BIOS F.2E 12/01/2008 kernel: [316431.200310] task: ffff88023285aee0 ti: ffff880230abc000 task.ti: ffff880230abc000 kernel: [316431.200324] RIP: 0010:[<ffffffffa078dd50>] [<ffffffffa078dd50>] afs_LoopServers+0x480/0x810 [openafs] kernel: [316431.200326] RSP: 0000:ffff880230abdd50 EFLAGS: 00010246 kernel: [316431.200327] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000845695d kernel: [316431.200327] RDX: 000000000845695c RSI: 0000000000000032 RDI: ffffffffa07e1360 kernel: [316431.200328] RBP: ffff880230abde68 R08: 0000000000017300 R09: ffff88023fd17300 kernel: [316431.200329] R10: ffffea00044e4d40 R11: ffffffffa0765e59 R12: ffff8800958817e0 kernel: [316431.200330] R13: ffff8800958811e0 R14: ffff8800b7c63780 R15: 0000000000000001 kernel: [316431.200331] FS: 0000000000000000(0000) GS:ffff88023fd00000(0000) knlGS:0000000000000000 kernel: [316431.200333] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b kernel: [316431.200334] CR2: 0000000000000010 CR3: 0000000001c0e000 CR4: 00000000000007e0 kernel: [316431.200334] Stack: kernel: [316431.200337] 0000000000000004 ffff880200000000 ffff880230abddd8 ffff88023285aee0 kernel: [316431.200339] ffff880095881cc0 000000000000002c 0000000000000058 ffff8800958811e0 kernel: [316431.200341] ffff8800958817e0 0000000000000058 0000000130abddb8 ffff8800b7c63780 kernel: [316431.200342] Call Trace: kernel: [316431.200357] [<ffffffffa078d080>] ? CkSrv_SetTime+0x680/0x680 [openafs] kernel: [316431.200372] [<ffffffffa078e11a>] afs_CheckServers+0x3a/0x40 [openafs] kernel: [316431.200385] [<ffffffffa0773f58>] afs_CheckServerDaemon+0x148/0x1a0 [openafs] kernel: [316431.200399] [<ffffffffa07c6710>] ? afs_linux_storeproc+0x160/0x160 [openafs] kernel: [316431.200411] [<ffffffffa07c6b70>] afsd_thread+0x460/0x720 [openafs] kernel: [316431.200429] [<ffffffffa07c6710>] ? afs_linux_storeproc+0x160/0x160 [openafs] kernel: [316431.200434] [<ffffffff810848e0>] kthread+0xc0/0xd0 kernel: [316431.200436] [<ffffffff81084820>] ? kthread_create_on_node+0x120/0x120 kernel: [316431.200439] [<ffffffff816f976c>] ret_from_fork+0x7c/0xb0 kernel: [316431.200441] [<ffffffff81084820>] ? kthread_create_on_node+0x120/0x120 kernel: [316431.200459] Code: 49 8b 3c dc ba 04 00 00 00 48 83 c3 01 e8 a9 5d fe ff 41 39 df 7e 1f 41 83 3c 9e 01 75 dd 48 8b 85 48 ff ff ff 8b 35 14 4e 05 00 <48> 8b 78 10 e8 57 49 fc ff eb c5 48 8b 9d 30 ff ff ff 4c 89 e7 kernel: [316431.200472] RIP [<ffffffffa078dd50>] afs_LoopServers+0x480/0x810 [openafs] kernel: [316431.200472] RSP <ffff880230abdd50> kernel: [316431.200473] CR2: 0000000000000010 kernel: [316431.208822] ---[ end trace b50487dbf78b0aef ]--- -- Ryan C. Underwood, <neme...@icequake.net>
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