Hi Trond, It looks less likely this is fixed in the NFS-related changes in 2.6.31.6, so I'm reporting this 2.6.31.4 rpcauth_checkverf oops [1]. Info from /proc/mounts included [2]. Client is 2.6.32-rc8 and seems quite seldom to reproduce. What info would help here, such as line numbers and disassembly? Thanks, Daniel --- [1] BUG: unable to handle kernel paging request at 0000000400001038 IP: [<ffffffffa03c3c22>] rpcauth_checkverf+0x32/0x70 [sunrpc] PGD 483fa067 PUD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/uevent CPU 5 Modules linked in: pl2303 usbserial nls_iso8859_1 nls_cp437 vfat fat ppdev kvm_intel kvm binfmt_misc bridge stp bnep btusb joydev snd_hda_codec_atihdmi microcode snd_hda_codec_idt dm_crypt arc4 ecb nfsd exportfs nfs lockd nfs_acl snd_hda_intel snd_seq_dummy auth_rpcgss snd_seq_oss snd_hda_codec snd_seq_midi snd_hwdep snd_rawmidi snd_pcm_oss iwlagn snd_seq_midi_event snd_mixer_oss mmc_block dell_wmi sunrpc iwlcore mac80211 snd_seq snd_pcm iptable_filter snd_seq_device snd_timer ip_tables uvcvideo x_tables lp dell_laptop psmouse videodev v4l1_compat v4l2_compat_ioctl32 usbhid dcdbas sdhci_pci snd sdhci cfg80211 soundcore parport serio_raw snd_page_alloc fglrx(P) led_class r8169 mii video output Pid: 826, comm: rpciod/5 Tainted: P 2.6.31-15-generic #50-Ubuntu Studio 1557 RIP: 0010:[<ffffffffa03c3c22>] [<ffffffffa03c3c22>] rpcauth_checkverf+0x32/0x70 [sunrpc] RSP: 0000:ffff88012e02bd50 EFLAGS: 00010246 RAX: 0000000400001000 RBX: ffff88012dc86ec8 RCX: 000000000000080f RDX: 0000000000000000 RSI: ffff880129c141c8 RDI: ffff88012dc86ec8 RBP: ffff88012e02bd70 R08: ffff88012e02a000 R09: 0000026edec938f8 R10: 0000000000000000 R11: 00000000ffffffff R12: ffff88012692e540 R13: ffff880129c141c8 R14: ffff88012a508000 R15: ffffc90011124308 FS: 0000000000000000(0000) GS:ffff8800280b9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000400001038 CR3: 000000009eaae000 CR4: 00000000000026e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process rpciod/5 (pid: 826, threadinfo ffff88012e02a000, task ffff88012e030000) Stack: ffff8801319b4a00 ffff88012dc86ec8 ffff88013092e000 ffff88013092e000 <0> ffff88012e02bdb0 ffffffffa03bb415 0000000000000010 0000000000000202 <0> ffff88012e02bda0 ffff88012dc86ec8 ffff88013092e000 ffffffffa04d4ff0 Call Trace: [<ffffffffa03bb415>] rpc_verify_header+0x1b5/0x5a0 [sunrpc] [<ffffffffa04d4ff0>] ? nfs4_xdr_dec_read+0x0/0x80 [nfs] [<ffffffffa03bb930>] call_decode+0x130/0x220 [sunrpc] [<ffffffffa03c2e4a>] __rpc_execute+0xba/0x220 [sunrpc] [<ffffffffa03c2fe0>] ? rpc_async_schedule+0x0/0x20 [sunrpc] [<ffffffffa03c2ff0>] rpc_async_schedule+0x10/0x20 [sunrpc] [<ffffffff810737a5>] run_workqueue+0x95/0x170 [<ffffffff81073924>] worker_thread+0xa4/0x120 [<ffffffff81078b30>] ? autoremove_wake_function+0x0/0x40 [<ffffffff81073880>] ? worker_thread+0x0/0x120 [<ffffffff81078746>] kthread+0xa6/0xb0 [<ffffffff810130ea>] child_rip+0xa/0x20 [<ffffffff810786a0>] ? kthread+0x0/0xb0 [<ffffffff810130e0>] ? child_rip+0x0/0x20 Code: 20 f6 05 51 d6 02 00 10 48 89 5d e8 4c 89 6d f8 48 89 fb 4c 89 65 f0 49 89 f5 4c 8b 67 50 75 1c 49 8b 44 24 38 4c 89 ee 48 89 df <ff> 50 38 48 8b 5d e8 4c 8b 65 f0 4c 8b 6d f8 c9 c3 49 8b 44 24 RIP [<ffffffffa03c3c22>] rpcauth_checkverf+0x32/0x70 [sunrpc] RSP <ffff88012e02bd50> CR2: 0000000400001038 ---[ end trace c9ba33d8dceb9bfc ]--- --- [2] x1:/ /net nfs4 rw,relatime,vers=4,rsize=262144,wsize=262144,namlen=255,acregmin=30,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=192.168.10.2,addr=192.168.10.250 0 0 -- Daniel J Blueman -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
