2.6.18-rc3-mm2: reiserfs problem?

["Rafael J. Wysocki" <rjw@sisk.pl>]

Hi,

I get something like the appended on every attempt to unmount the reiserfs
filesystem mounted on /tmp.  The other reiserfs filesystems don't have such
problems and this one didn't have them too with 2.6.18-rc2-mm1.


BUG: Dentry ffff810037c573e8{i=3,n=.reiserfs_priv} still in use (1) [unmount of reiserfs hdc7]
----------- [cut here ] --------- [please bite here ] ---------
Kernel BUG at fs/dcache.c:611
invalid opcode: 0000 [1] PREEMPT
last sysfs file: /devices/pci0000:00/0000:00:00.0/irq
CPU 0
Modules linked in: ide_cd cdrom xt_pkttype ipt_LOG xt_limit usbserial asus_acpi thermal processor fan button battery ac snd_pcm_oss snd_mix
er_oss snd_seq snd_seq_device af_packet bcm43xx ieee80211softmac ieee80211 ieee80211_crypt pcmcia firmware_class ohci1394 ieee1394 skge yen
ta_socket rsrc_nonstatic pcmcia_core usbhid ff_memless ip6t_REJECT xt_tcpudp ipt_REJECT xt_state snd_intel8x0 snd_ac97_codec snd_ac97_bus s
nd_pcm snd_timer snd iptable_mangle soundcore iptable_nat ip_nat iptable_filter snd_page_alloc ip6table_mangle ehci_hcd ip_conntrack i2c_nf
orce2 i2c_core ip_tables ohci_hcd ip6table_filter ip6_tables x_tables ipv6 parport_pc lp parport dm_mod
Pid: 9478, comm: umount Not tainted 2.6.18-rc3-mm2 #7
RIP: 0010:[<ffffffff802a6eb7>]  [<ffffffff802a6eb7>] shrink_dcache_for_umount_subtree+0x1d7/0x2b0
RSP: 0018:ffff810059291da8  EFLAGS: 00010296
RAX: 0000000000000062 RBX: ffff810037c573e8 RCX: 0000000000000003
RDX: 0000000000000008 RSI: ffff810037c627d8 RDI: 0000000000000001
RBP: ffff810059291dc8 R08: 0000000000000002 R09: ffffffff8022de59
R10: 0000000000000000 R11: 0000000000000001 R12: ffff810037c573e8
R13: ffff81005ddc4800 R14: ffff81005f539250 R15: ffff81005f0a8688
FS:  00002afc38e00b00(0000) GS:ffffffff808c2000(0000) knlGS:00000000558b4d00
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00002ac8a49a1d40 CR3: 000000005f546000 CR4: 00000000000006e0
Process umount (pid: 9478, threadinfo ffff810059290000, task ffff810037c62080)
Stack:  ffff81005f0a8b10 ffff81005f0a8688 ffffffff80577a20 ffff810059291ea8
 ffff810059291de8 ffffffff802a6fc4 ffff81005f0a8688 ffffffff80577a20
 ffff810059291e18 ffffffff80293bb4 ffff81005f539250 ffff81005e09d140
Call Trace:
 [<ffffffff802a6fc4>] shrink_dcache_for_umount+0x34/0x70
 [<ffffffff80293bb4>] generic_shutdown_super+0x24/0x110
 [<ffffffff80293cd0>] kill_block_super+0x30/0x50
 [<ffffffff80293f81>] deactivate_super+0x81/0xa0
 [<ffffffff802ac008>] mntput_no_expire+0x58/0xa0
 [<ffffffff8029b83d>] path_release_on_umount+0x1d/0x30
 [<ffffffff802ad3f4>] sys_umount+0x274/0x290
 [<ffffffff80209d0e>] system_call+0x7e/0x83
DWARF2 unwinder stuck at system_call+0x7e/0x83
Leftover inexact backtrace:


Code: 0f 0b 68 41 33 4a 80 c2 63 02 49 8b 5c 24 68 49 39 dc 75 05
RIP  [<ffffffff802a6eb7>] shrink_dcache_for_umount_subtree+0x1d7/0x2b0
 RSP <ffff810059291da8>

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