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SubjectRE: kernel 3.1.1 - cifs issue - ls: cannot access /cifs_mnt: Cannot allocate memory
Date
Hi,

Unmount/remount fails, a reboot appears to be the only way to fix:

[72000.638947] INFO: task cp:29420 blocked for more than 120 seconds.
[72000.638949] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[72000.638950] cp D c32cfdb8 0 29420 1 0x00000000
[72000.638954] c334f150 00200086 00000002 c32cfdb8 00000008 00000000
c1679000 0443da4c
[72000.638959] c334f2b8 f77cc900 00000020 c14a8c15 00000000 00000003
f5c240c0 f5ed5a80
[72000.638964] f5ed5a88 00011200 f5ed5a90 00000000 00011200 f5ed5a40
00011200 f5c240c0
[72000.638969] Call Trace:
[72000.638973] [<c14a8c15>] ? cache_alloc_refill+0x6a/0x428
[72000.638976] [<c11c3ef5>] ? wait_for_free_request+0x85/0x110
[72000.638979] [<c10467b0>] ? abort_exclusive_wait+0x90/0x90
[72000.638982] [<c11c4a0f>] ? SendReceive+0x7f/0x2d0
[72000.638985] [<c11ac973>] ? CIFSSMBQPathInfo+0x123/0x240
[72000.638988] [<c11bea9e>] ? cifs_get_inode_info+0x29e/0x3d0
[72000.638992] [<c11b6d8c>] ? build_path_from_dentry+0x10c/0x230
[72000.638995] [<c10a4cb8>] ? do_path_lookup+0x28/0x80
[72000.638998] [<c11c0288>] ? cifs_revalidate_dentry_attr+0x118/0x1b0
[72000.639001] [<c11c0370>] ? cifs_revalidate_dentry+0x20/0x20
[72000.639004] [<c11c03be>] ? cifs_getattr+0x4e/0x110
[72000.639016] [<c11c0370>] ? cifs_revalidate_dentry+0x20/0x20
[72000.639019] [<c109d139>] ? vfs_getattr+0x19/0x40
[72000.639021] [<c109d1bd>] ? vfs_fstatat+0x5d/0x80
[72000.639024] [<c109d218>] ? vfs_stat+0x18/0x20
[72000.639027] [<c109d47e>] ? sys_stat64+0xe/0x30
[72000.639031] [<c10899d7>] ? remove_vma+0x37/0x50
[72000.639035] [<c108a80a>] ? do_munmap+0x16a/0x2b0
[72000.639038] [<c1003930>] ? math_state_restore+0x40/0x40
[72000.639042] [<c1009b23>] ? fpu_finit+0x23/0x70
[72000.639046] [<c1009bb9>] ? init_fpu+0x49/0x150
[72000.639049] [<c101f3f0>] ? vmalloc_sync_all+0x140/0x140
[72000.639053] [<c14af310>] ? sysenter_do_call+0x12/0x26
[72000.639057] INFO: task cp:29422 blocked for more than 120 seconds.
[72000.639059] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[72000.639062] cp D c3199db8 0 29422 1 0x00000000
[72000.639067] c334ee00 00200082 00000002 c3199db8 00000008 00000000
c1679000 0443dcf6
[72000.639076] c334ef68 f77cca00 00000021 c14a8c15 00000000 00000003
f5c240c0 f5ed5a80
[72000.639086] f5ed5a88 00011200 f5ed5a90 00000000 00011200 f5ed5a40
00011200 f5c240c0
[72000.639095] Call Trace:
[72000.639099] [<c14a8c15>] ? cache_alloc_refill+0x6a/0x428
[72000.639104] [<c11c3ef5>] ? wait_for_free_request+0x85/0x110
[72000.639109] [<c10467b0>] ? abort_exclusive_wait+0x90/0x90
[72000.639113] [<c11c4a0f>] ? SendReceive+0x7f/0x2d0
[72000.639116] [<c11ac973>] ? CIFSSMBQPathInfo+0x123/0x240
[72000.639121] [<c11bea9e>] ? cifs_get_inode_info+0x29e/0x3d0
[72000.639125] [<c11b6d8c>] ? build_path_from_dentry+0x10c/0x230
[72000.639129] [<c10a4cb8>] ? do_path_lookup+0x28/0x80
[72000.639133] [<c11c0288>] ? cifs_revalidate_dentry_attr+0x118/0x1b0
[72000.639138] [<c11c0370>] ? cifs_revalidate_dentry+0x20/0x20
[72000.639141] [<c11c03be>] ? cifs_getattr+0x4e/0x110
[72000.639145] [<c11c0370>] ? cifs_revalidate_dentry+0x20/0x20
[72000.639149] [<c109d139>] ? vfs_getattr+0x19/0x40
[72000.639153] [<c109d1bd>] ? vfs_fstatat+0x5d/0x80
[72000.639157] [<c109d218>] ? vfs_stat+0x18/0x20
[72000.639160] [<c109d47e>] ? sys_stat64+0xe/0x30
[72000.639164] [<c10899d7>] ? remove_vma+0x37/0x50
[72000.639168] [<c108a80a>] ? do_munmap+0x16a/0x2b0
[72000.639172] [<c1003930>] ? math_state_restore+0x40/0x40
[72000.639176] [<c1009b23>] ? fpu_finit+0x23/0x70
[72000.639179] [<c1009bb9>] ? init_fpu+0x49/0x150
[72000.639183] [<c101f3f0>] ? vmalloc_sync_all+0x140/0x140
[72000.639187] [<c14af310>] ? sysenter_do_call+0x12/0x26
[72012.028045] CIFS VFS: Server 192.168.0.20 has not responded in 300
seconds. Reconnecting...
[104345.704201] CIFS VFS: Send error in SessSetup = -12
[104345.704235] CIFS VFS: cifs_mount failed w/return code = -12
[104361.549636] CIFS VFS: Send error in SessSetup = -12
[104361.549726] CIFS VFS: cifs_mount failed w/return code = -12

Justin.





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