System panics with errors "CIFS VFS: server not responding" in Red Hat Enterprise Linux 5
Issue
- System panicked while trying to flush a file on
CIFSfilesystem with:
Unable to handle kernel paging request at 0000000000005c07 RIP:
[<ffffffff887ba461>] :cifs:find_writable_file+0xad/0xd2
PGD 196c34067 PUD 18da58067 PMD 1c3aa0067 PTE 0
Oops: 0000 [1] SMP
last sysfs file: /devices/pci0000:40/0000:40:0f.0/0000:43:00.1/irq
CPU 2
Modules linked in: cpqci(U) mptctl ipmi_devintf ipmi_si ipmi_msghandler nfsd
exportfs nfs lockd fscache nfs_acl nls_utf8 cifs sunrpc bonding dmpaa(U)
vxspec(U) vxio(U) vxdmp(U) fdd(U) vxportal(U) vxfs(U) dm_mirror dm_multipath
dm_mod video sbs backlight i2c_ec i2c_core button battery asus_acpi
acpi_memhotplug ac parport_pc lp parport sg ide_cd k8_edac lpfc edac_mc cdrom
serio_raw scsi_transport_fc k8temp shpchp e1000 hwmon bnx2 pcspkr usb_storage
ata_piix sata_nv libata mptsas scsi_transport_sas mptspi mptscsih
scsi_transport_spi mptbase cciss sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd
uhci_hcd
Pid: 413, comm: pdflush Tainted: PF 2.6.18-53.1.14.el5 #1
RIP: 0010:[<ffffffff887ba461>] [<ffffffff887ba461>]
:cifs:find_writable_file+0xad/0xd2
RSP: 0018:ffff81042fa05bc0 EFLAGS: 00010202
RAX: 00000000ffffff90 RBX: 0000000000005bf7 RCX: ffff8103dc881540
RDX: ffff8103dc881540 RSI: 000000000d83dc38 RDI: ffffffff887e82c0
RBP: ffff8103d4f642f8 R08: ffff81042fa04000 R09: 000000000000003f
R10: ffff810107bcc008 R11: 0000000000000000 R12: ffff81042fa05e10
R13: ffff8103d4f64448 R14: 00000000fffffff5 R15: 0000000000000009
FS: 0000000040110940(0000) GS:ffff810107b193c0(0000) knlGS:00000000ac7fbb90
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000005c07 CR3: 00000001caf3e000 CR4: 00000000000006e0
Process pdflush (pid: 413, threadinfo ffff81042fa04000, task ffff81022fa71100)
Stack: 0000000000001000 0000000000000524 0000000000000600 ffffffff887bc9d2
ffff81020fc19800 0000860000000009 ffff810220e65140 000000008001c85a
ffffffffffffffff 000000002f888c00 0000000000000524 000000000051b000
Call Trace:
[<ffffffff887bc9d2>] :cifs:cifs_writepages+0x3d2/0x5ff
[<ffffffff80059052>] do_writepages+0x20/0x2f
[<ffffffff8002f8c0>] __writeback_single_inode+0x1a8/0x322
[<ffffffff88572733>] :vxdmp:vxdmp_congested+0x148/0x158
[<ffffffff88602756>] :vxio:vol_rwsleep_unrdlock+0x15/0x4e
[<ffffffff80020b0a>] sync_sb_inodes+0x1a9/0x267
[<ffffffff8009c2c4>] keventd_create_kthread+0x0/0x61
[<ffffffff8004ed14>] writeback_inodes+0x82/0xd8
[<ffffffff800c23e4>] wb_kupdate+0x9e/0x10d
[<ffffffff800544f7>] pdflush+0x0/0x1fb
[<ffffffff80054648>] pdflush+0x151/0x1fb
[<ffffffff800c2346>] wb_kupdate+0x0/0x10d
[<ffffffff800321fc>] kthread+0xfe/0x132
[<ffffffff8005cfb1>] child_rip+0xa/0x11
[<ffffffff8009c2c4>] keventd_create_kthread+0x0/0x61
[<ffffffff800320fe>] kthread+0x0/0x132
[<ffffffff8005cfa7>] child_rip+0x0/0x11
Code: 48 8b 43 10 0f 18 08 48 8d 53 10 48 8d 45 10 48 39 c2 75 80
RIP [<ffffffff887ba461>] :cifs:find_writable_file+0xad/0xd2
RSP <ffff81042fa05bc0>
- Logs shows the following messages:
CIFS VFS: server not responding
CIFS VFS: No response for cmd 50 mid 15528
CIFS VFS: No response to cmd 47 mid 15526
CIFS VFS: No response to cmd 47 mid 15527
CIFS VFS: Write2 ret -11, written = 0
CIFS VFS: No response for cmd 50 mid 15529
CIFS VFS: Write2 ret -11, written = 0
CIFS VFS: server not responding
CIFS VFS: server not responding
CIFS VFS: No response for cmd 50 mid 15537
CIFS VFS: No response for cmd 50 mid 15536
CIFS VFS: No response for cmd 50 mid 15538
CIFS VFS: No response to cmd 47 mid 15535
CIFS VFS: Write2 ret -11, written = 0
CIFS VFS: No writable handles for inode
CIFS VFS: No response to cmd 47 mid 15534
CIFS VFS: Write2 ret -11, written = 0
CIFS VFS: server not responding
CIFS VFS: No response for cmd 114 mid 15539
CIFS VFS: No writable handles for inode
Unable to handle kernel paging request at 0000000000005c07 RIP:
[<ffffffff887ba461>] :cifs:find_writable_file+0xad/0xd2
Environment
- Red Hat Enterprise Linux 5.1
- kernel-2.6.18-53.1.14.el5
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