cifs oops at mount in linus git

From: Arkadiusz Miskiewicz
Date: Tue Sep 22 2009 - 10:38:08 EST



This oops is happening in latest linus master. Few days ago there
was no such problem. Is this anything known?

[50421.547540] general protection fault: 0000 [#1] PREEMPT SMP
[50421.547544] last sysfs file: /sys/class/power_supply/BAT0/energy_full
[50421.547546] CPU 0
[50421.547547] Modules linked in: nls_utf8 cifs iwlagn sco bridge stp llc xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables tun input_polldev
rfcomm bnep l2cap crc16 ipv6 sch_sfq acpi_cpufreq cryptd aes_x86_64 aes_generic xts gf128mul dm_crypt btusb bluetooth dm_mod usbhid hid uvcvideo videodev v4l1_compat
v4l2_compat_ioctl32 joydev snd_hda_codec_conexant arc4 ecb snd_hda_intel snd_hda_codec iwlcore mac80211 snd_hwdep snd_pcm snd_timer uhci_hcd ehci_hcd yenta_socket firewire_ohci
cfg80211 sdhci_pci thinkpad_acpi snd psmouse sdhci firewire_core rfkill sg mmc_core rsrc_nonstatic soundcore usbcore evdev pcspkr processor serio_raw sr_mod snd_page_alloc ricoh_mmc
crc_itu_t pcmcia_core e1000e nvram cdrom iTCO_wdt i2c_i801 iTCO_vendor_support led_class wmi thermal battery ac xfs exportfs sd_mod crc_t10dif ahci libata scsi_mod [last unloaded: iwlagn]
[50421.547607] Pid: 24094, comm: mount.cifs Not tainted 2.6.31 #36 2764CTO
[50421.547609] RIP: 0010:[<ffffffffa04e572e>] [<ffffffffa04e572e>] cifs_get_tcp_session+0x411/0x572 [cifs]
[50421.547621] RSP: 0018:ffff880116439b98 EFLAGS: 00010287
[50421.547623] RAX: ffff880116438000 RBX: ffff8801164e1400 RCX: 0000000000000000
[50421.547625] RDX: ffff10016133db00 RSI: 0000000000000206 RDI: ffffffff8125cdc6
[50421.547626] RBP: ffff880116439c58 R08: ffff880116438000 R09: ffff880028213e00
[50421.547628] R10: ffffffff81487dd8 R11: 0000000000000005 R12: ffff880064d2eb80
[50421.547630] R13: ffff880116439ba8 R14: ffff8801164e1400 R15: 0000000000000000
[50421.547633] FS: 00007f1bbc0ca6f0(0000) GS:ffff880028200000(0000) knlGS:0000000000000000
[50421.547635] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[50421.547637] CR2: 00007f4741e20340 CR3: 00000001164b9000 CR4: 00000000000006f0
[50421.547639] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[50421.547641] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[50421.547643] Process mount.cifs (pid: 24094, threadinfo ffff880116438000, task ffff88013ad38000)
[50421.547645] Stack:
[50421.547646] 0000000000000000 ffffffff0000000d 9200a8c000000002 0000000000000000
[50421.547649] <0> 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[50421.547652] <0> 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[50421.547655] Call Trace:
[50421.547665] [<ffffffffa04e76d6>] cifs_mount+0x18a3/0x23c9 [cifs]
[50421.547673] [<ffffffffa04da93b>] cifs_get_sb+0x181/0x2d3 [cifs]
[50421.547678] [<ffffffff810d5626>] vfs_kern_mount+0x9e/0x12a
[50421.547681] [<ffffffff810d5710>] do_kern_mount+0x48/0xe8
[50421.547684] [<ffffffff810eaf24>] do_mount+0x785/0x7f2
[50421.547687] [<ffffffff810eb019>] sys_mount+0x88/0xc7
[50421.547691] [<ffffffff8100ba6b>] system_call_fastpath+0x16/0x1b
[50421.547692] Code: 48 8b 04 25 08 b5 00 00 48 2d d8 1f 00 00 ff 40 1c 65 8b 0c 25 30 cc 00 00 48 8b 15 f5 d6 02 00 48 63 c9 48 03 14 cd 60 5c 4e 81 <48> ff 02 48 8b 15 e0 d6 02 00 48 03
14 cd 60 5c 4e 81 83 3d 81
[50421.547718] RIP [<ffffffffa04e572e>] cifs_get_tcp_session+0x411/0x572 [cifs]
[50421.547732] RSP <ffff880116439b98>
[50421.547734] ---[ end trace cc36b55daefbf636 ]---
[50421.547736] note: mount.cifs[24094] exited with preempt_count 2

--
Arkadiusz MiÅkiewicz PLD/Linux Team
arekm / maven.pl http://ftp.pld-linux.org/
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