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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

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** Changed in: linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1375987

Title:
  WARNING: CPU: 1 PID: 6262 at
  /build/buildd/linux-3.13.0/fs/cifs/transport.c:313
  smb_send_rqst+0x201/0x260 [cifs]()

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I'm not sure if it's a kernel bug or a CIFS bug.

  I'm having this problem when trying to access files (using autofs) on.

  It works with kernel 3.13.0-35-generic but not with kernel
  3.13.0-36-generic.

  Sep 30 16:07:02 ubuntunew automount[1506]: attempting to mount entry /net/smb/win1
  Sep 30 16:07:02 ubuntunew kernel: [  227.926474] ------------[ cut here ]------------
  Sep 30 16:07:02 ubuntunew kernel: [  227.926535] WARNING: CPU: 1 PID: 6262 at /build/buildd/linux-3.13.0/fs/cifs/transport.c:313 smb_send_rqst+0x201/0x260 [cifs]()
  Sep 30 16:07:02 ubuntunew kernel: [  227.926543] Send length mismatch(send_length=72 smb_buf_length=2164260932)
  Sep 30 16:07:02 ubuntunew kernel: [  227.926548] Modules linked in: ipx p8023 p8022 psnap llc cfg80211 nls_utf8 cifs autofs4 xt_REDIRECT xt_tcpudp iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack ip_tables x_tables vmw_balloon serio_raw vmwgfx ttm nfsd auth_rpcgss nfs_acl i2c_piix4 drm nfs lockd vmw_vmci mac_hid sunrpc fscache shpchp parport_pc ppdev lp parport psmouse pcnet32 mii floppy mptspi mptscsih mptbase
  Sep 30 16:07:02 ubuntunew kernel: [  227.926739] CPU: 1 PID: 6262 Comm: mount.cifs Tainted: G        W     3.13.0-36-generic #63-Ubuntu
  Sep 30 16:07:02 ubuntunew kernel: [  227.926745] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 10/13/2009
  Sep 30 16:07:02 ubuntunew kernel: [  227.926749]  00000000 00000000 e14add5c c1653137 e14add9c e14add8c c105696e f8f8a720
  Sep 30 16:07:02 ubuntunew kernel: [  227.926764]  e14addb8 00001876 f8f8a648 00000139 f8f67301 f8f67301 e14ade18 81000044
  Sep 30 16:07:02 ubuntunew kernel: [  227.926777]  e14addf4 e14adda4 c10569c3 00000009 e14add9c f8f8a720 e14addb8 e14addec
  Sep 30 16:07:02 ubuntunew kernel: [  227.926790] Call Trace:
  Sep 30 16:07:02 ubuntunew kernel: [  227.926805]  [<c1653137>] dump_stack+0x41/0x52
  Sep 30 16:07:02 ubuntunew kernel: [  227.926817]  [<c105696e>] warn_slowpath_common+0x7e/0xa0
  Sep 30 16:07:02 ubuntunew kernel: [  227.926843]  [<f8f67301>] ? smb_send_rqst+0x201/0x260 [cifs]
  Sep 30 16:07:02 ubuntunew kernel: [  227.926863]  [<f8f67301>] ? smb_send_rqst+0x201/0x260 [cifs]
  Sep 30 16:07:02 ubuntunew kernel: [  227.926873]  [<c10569c3>] warn_slowpath_fmt+0x33/0x40
  Sep 30 16:07:02 ubuntunew kernel: [  227.926946]  [<f8f67301>] smb_send_rqst+0x201/0x260 [cifs]
  Sep 30 16:07:02 ubuntunew kernel: [  227.926960]  [<c1659ec2>] ? _raw_spin_lock_bh+0x12/0x60
  Sep 30 16:07:02 ubuntunew kernel: [  227.927010]  [<f8f6738c>] smb_sendv+0x2c/0x40 [cifs]
  Sep 30 16:07:02 ubuntunew kernel: [  227.927049]  [<f8f673c1>] smb_send+0x21/0x30 [cifs]
  Sep 30 16:07:02 ubuntunew kernel: [  227.927083]  [<f8f52f64>] generic_ip_connect+0x2e4/0x3d0 [cifs]
  Sep 30 16:07:02 ubuntunew kernel: [  227.927105]  [<f8f56de7>] cifs_mount+0x687/0x970 [cifs]
  Sep 30 16:07:02 ubuntunew kernel: [  227.927120]  [<f8f46f36>] cifs_do_mount+0x86/0x480 [cifs]
  Sep 30 16:07:02 ubuntunew kernel: [  227.927131]  [<c11660d6>] ? __kmalloc_track_caller+0x46/0x1d0
  Sep 30 16:07:02 ubuntunew kernel: [  227.927142]  [<c112a1d5>] ? __get_free_pages+0x25/0x40
  Sep 30 16:07:02 ubuntunew kernel: [  227.927151]  [<c117ca01>] mount_fs+0x31/0x170
  Sep 30 16:07:02 ubuntunew kernel: [  227.927161]  [<c113dbcf>] ? __alloc_percpu+0xf/0x20
  Sep 30 16:07:02 ubuntunew kernel: [  227.927170]  [<c11949f9>] vfs_kern_mount+0x49/0xd0
  Sep 30 16:07:02 ubuntunew kernel: [  227.927179]  [<c1196b49>] do_mount+0x1e9/0x950
  Sep 30 16:07:02 ubuntunew kernel: [  227.927188]  [<c119684f>] ? copy_mount_options+0x2f/0x100
  Sep 30 16:07:02 ubuntunew kernel: [  227.927196]  [<c119754c>] SyS_mount+0x7c/0xb0
  Sep 30 16:07:02 ubuntunew kernel: [  227.927206]  [<c16614cd>] sysenter_do_call+0x12/0x12
  Sep 30 16:07:02 ubuntunew kernel: [  227.927220] ---[ end trace 6cbce9e464774b4d ]---
  Sep 30 16:07:02 ubuntunew kernel: [  227.932720] CIFS VFS: Error connecting to socket. Aborting operation.
  Sep 30 16:07:02 ubuntunew automount[1506]: >> mount error(5): Input/output error
  Sep 30 16:07:02 ubuntunew automount[1506]: >> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
  Sep 30 16:07:02 ubuntunew kernel: [  227.934606] CIFS VFS: cifs_mount failed w/return code = -5
  Sep 30 16:07:02 ubuntunew automount[1506]: failed to mount /net/smb/win1

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-36-generic 3.13.0-36.63
  ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6
  Uname: Linux 3.13.0-36-generic i686
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 sep 30 16:03 seq
   crw-rw---- 1 root audio 116, 33 sep 30 16:03 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.14.1-0ubuntu3.4
  Architecture: i386
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  Date: Tue Sep 30 16:05:35 2014
  HibernationDevice: RESUME=UUID=aa1ecd82-82d8-4582-a77f-972ad4e05ea7
  InstallationDate: Installed on 2014-01-21 (252 days ago)
  InstallationMedia: Ubuntu-Server 12.04.3 LTS "Precise Pangolin" - Release i386 (20130820.2)
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
  Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
  MachineType: VMware, Inc. VMware Virtual Platform
  PciMultimedia:
   
  ProcFB: 0 svgadrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-36-generic root=/dev/mapper/hostname--vg-root ro plymouth:debug=file:/var/log/plymouth-debug.log
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-36-generic N/A
   linux-backports-modules-3.13.0-36-generic  N/A
   linux-firmware                             1.127.7
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: Upgraded to trusty on 2014-04-18 (165 days ago)
  dmi.bios.date: 10/13/2009
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: 6.00
  dmi.board.name: 440BX Desktop Reference Platform
  dmi.board.vendor: Intel Corporation
  dmi.board.version: None
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 1
  dmi.chassis.vendor: No Enclosure
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvr6.00:bd10/13/2009:svnVMware,Inc.:pnVMwareVirtualPlatform:pvrNone:rvnIntelCorporation:rn440BXDesktopReferencePlatform:rvrNone:cvnNoEnclosure:ct1:cvrN/A:
  dmi.product.name: VMware Virtual Platform
  dmi.product.version: None
  dmi.sys.vendor: VMware, Inc.

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