[Bugme-new] [Bug 13588] New: shrink_dcache_for_umount_subtree+0x238/0x240

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Sat Jun 20 08:03:12 PDT 2009


http://bugzilla.kernel.org/show_bug.cgi?id=13588

           Summary: shrink_dcache_for_umount_subtree+0x238/0x240
           Product: File System
           Version: 2.5
    Kernel Version: NFS umount dcache shrink bug
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: NFS
        AssignedTo: trond.myklebust at fys.uio.no
        ReportedBy: bugzilla77 at free.fr
        Regression: No


nfsd: last server has exited, flushing export cache
BUG: Dentry cd7a6aa0{i=df,n=bomberx} still in use (1) [unmount of vfat sdc9]
------------[ cut here ]------------
kernel BUG at fs/dcache.c:669!
invalid opcode: 0000 [#1] SMP 
last sysfs file: /sys/firmware/edd/int13_dev81/mbr_signature
Modules linked in: nfsd lockd nfs_acl auth_rpcgss sunrpc exportfs nls_iso8859_1
nls_cp437 vfat fat ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4
nf_defrag_ipv4 ip_tables usblp wlan_tkip af_packet wlan_wep ip6t_REJECT
xt_limit ip6t_LOG w83l785ts nf_conntrack_ipv6 xt_state nf_conntrack asb100
hwmon_vid ip6table_filter ip6_tables eeprom x_tables ipv6 binfmt_misc loop
dm_mod raid0 nvidia(P) nvram visor usbserial sbp2 emu10k1_gp gameport
wlan_scan_sta ath_rate_sample snd_intel8x0 snd_ac97_codec ac97_bus
snd_seq_dummy evdev ath_pci ohci1394 ieee1394 snd_seq_oss 3c59x wlan
snd_seq_midi_event snd_seq mii ath_hal(P) snd_seq_device snd_pcm_oss snd_pcm
snd_timer snd_mixer_oss snd i2c_nforce2 usbhid soundcore rtc_cmos nvidia_agp
forcedeth snd_page_alloc sg i2c_core shpchp sr_mod hid agpgart thermal
pci_hotplug button processor usb_storage uhci_hcd ohci_hcd ehci_hcd usbcore ppa
parport_pc imm parport ata_generic ide_pci_generic pata_acpi amd74xx ide_gd_mod
ide_core pata_amd libata sd_mod scsi_mod crc_t10dif raid456 async_xor
async_memcpy async_tx xor raid1 reiserfs

Pid: 3490, comm: umount Tainted: P           (2.6.29.3-desktop-1mnb #1)
A7N8X2.0
EIP: 0060:[<c01c12f8>] EFLAGS: 00010282 CPU: 0
EIP is at shrink_dcache_for_umount_subtree+0x238/0x240
EAX: 00000050 EBX: cd7a6afc ECX: ffffffff EDX: 00e51000
ESI: cd7a6aa0 EDI: 00000001 EBP: ddb1feec ESP: ddb1febc
 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process umount (pid: 3490, ti=ddb1e000 task=cf10d4e0 task.ti=ddb1e000)
Stack:
 c0492798 cd7a6aa0 000000df cd7a6afc 00000001 e120dcf1 d921656c e120dcf1
 00000008 d9216400 e11998c0 e120e7c0 ddb1fef8 c01c1328 d9216400 ddb1ff10
 c01b25bb c053f51c ddb1ff0c cc0f81e0 00000003 ddb1ff20 c01b26d5 d9216400
Call Trace:
 [<c01c1328>] ? shrink_dcache_for_umount+0x28/0x50
 [<c01b25bb>] ? generic_shutdown_super+0x1b/0x110
 [<c01b26d5>] ? kill_block_super+0x25/0x40
 [<c01eb9e0>] ? vfs_quota_off+0x0/0x20
 [<c01b298f>] ? deactivate_super+0x5f/0x80
 [<c01c6c39>] ? mntput_no_expire+0xf9/0x140
 [<c01c6d02>] ? release_mounts+0x82/0x90
 [<c01c6f55>] ? sys_umount+0x75/0x360
 [<c01c7259>] ? sys_oldumount+0x19/0x20
 [<c01053db>] ? sysenter_do_call+0x12/0x2f
Code: 6c 01 00 00 89 44 24 18 8b 45 ec 89 7c 24 10 89 5c 24 0c 89 54 24 08 89
74 24 04 89 44 24 14 c7 04 24 98 27 49 c0 e8 25 84 1e 00 <0f> 0b eb fe 0f 0b eb
fe 55 89 e5 53 89 c3 8d 40 3c e8 52 b8 f8 
EIP: [<c01c12f8>] shrink_dcache_for_umount_subtree+0x238/0x240 SS:ESP
0068:ddb1febc
---[ end trace 38f87c0643f872c5 ]---

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