Hello Okajima,
i tried the patch that you seem to have provided but seem to have been
hit the issue. Once hit the issue i provide the details of the log.
Regarding diff between vanilla and SLES, i believe there is not much
significant difference. but i let you know on this later.
After branch deletion, when i try to umount the reiseferfs partition,
we seem hit to the BUG_ON in fs/dcache.c on line 666( because of
d_count, so i believe some mismatch between dget/dput may be) as
below:
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413467] BUG: Dentry
ffff8803b0d14640{i=0,n=448} still in use (1) [unmount of
reiserfs sdu1]
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413490] ------------[
cut here ]------------
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413499] kernel BUG at
fs/dcache.c:666!
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413503] invalid
opcode: 0000 [1] SMP DEBUG_PAGEALLOC
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413509] last sysfs
file: /sys/fs/aufs/si_21194aace0e4a251/br6
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413514] CPU 7
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413517] Modules
linked in: aufs(N) exportfs(N) reiserfs(N) ipv6(N) cpufreq_c
onservative(N)
cpufreq_userspace(N) cpufreq_powersave(N) acpi_cpufreq(N) microcode(N)
fuse(N) loop(N) dm_mod(N) rtc_cmos(N) r
tc_core(N) i2c_i801(N) ses(N) serio_raw(N)
rtc_lib(N) button(N) pcspkr(N) enclosure(N) i2c_core(N) bnx2(N) sg(N)
usbhid(N) hi d(N)
ff_memless(N) uhci_hcd(N) sd_mod(N) crc_t10dif(N) ehci_hcd(N)
mptsas(N) mptscsih(N) usbcore(N) mptbase(N) scsi_transport
_sas(N) edd(N) ext3(N)
mbcache(N) jbd(N) fan(N) ide_pci_generic(N) ide_core(N) ata_generic(N)
ata_piix(N) libata(N) dock(N) t
hermal(N) processor(N) thermal_sys(N) hwmon(N)
megaraid_sas(N) scsi_mod(N)
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413579] Supported:
No, Unsupported modules are loaded
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413585] Pid: 26627,
comm: umount Tainted: G M 2.6.27.45-0.1-4827 #9
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413590] RIP:
0010:[<ffffffff802d3d6e>] [<ffffffff802d3d6e>] shrink_dcache_f
or_umount_subtree+0x1b2/0x2af
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413602] RSP:
0018:ffff8803781c9de8 EFLAGS: 00010296
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413607] RAX:
000000000000006d RBX: ffff880437b77738 RCX: 0000000000000000
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413611] RDX:
ffff8802cb77d000 RSI: 0000000000000001 RDI: ffffffff804c9709
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413616] RBP:
ffff8803781c9e18 R08: 0000000000000016 R09: ffffffff8025758b
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413621] R10:
ffff8803781c9c58 R11: 000000000000000a R12: ffff8803b0d14640
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413626] R13:
000000000000000b R14: ffff8803b0d146c8 R15: 0000000000000000
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413631] FS:
00007f39788e96f0(0000) GS:ffff88043f149cc0(0000) knlGS:00000000
00000000
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413637] CS: 0010 DS:
0000 ES: 0000 CR0: 000000008005003b
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413641] CR2:
00007f39782501b0 CR3: 0000000378402000 CR4: 00000000000006e0
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413646] DR0:
0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413651] DR3:
0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413656] Process
umount (pid: 26627, threadinfo ffff8803781c8000, task ffff88
0409566040)
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413661] Stack:
ffff88043ac8ec50 ffffffff80256f35 ffff88043ac8e800 ffffffffa
02c2b50
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413669]
ffff88043ac8e800 ffff88043d5ffac0 ffff8803781c9e38 ffffffff802d3ea2
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413677]
ffff8803fb572d08 ffff88043ac8e800 ffff8803781c9e58 ffffffff802c39f3
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413685] Call Trace:
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413700]
[<ffffffff802d3ea2>] shrink_dcache_for_umount+0x37/0x47
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413712]
[<ffffffff802c39f3>] generic_shutdown_super+0x1a/0xf7
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413723]
[<ffffffff802c3ae5>] kill_block_super+0x15/0x29
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413745]
[<ffffffffa02ac538>] reiserfs_kill_sb+0x93/0x97 [reiserfs]
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413769]
[<ffffffff802c3bc8>] deactivate_super+0x68/0x7d
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413778]
[<ffffffff802d9d4e>] mntput_no_expire+0xa9/0xe5
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413788]
[<ffffffff802da347>] sys_umount+0x2e1/0x310
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413798]
[<ffffffff8020c10b>] system_call_fastpath+0x16/0x1b
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413808]
[<00007f39782501c7>] 0x7f39782501c7
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413812]
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413814]
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413817] Code: 08 49
8b 44 24 38 48 85 c0 74 04 48 8b 50 40 48 8d 86 50 04 00
00 48 c7 c7 87 29 5f 80 4c 89 e6
48 89 04 24 31 c0 e8 02 28 1f 00 <0f> 0b eb fe 49 8b 5c 24 50 4c 39 e3
75 04 31 db eb 03 f0
ff 0b
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413855] RIP
[<ffffffff802d3d6e>] shrink_dcache_for_umount_subtree+0x1b2/0x2
af
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.413862] RSP <ffff8803781c9de8>
Jul 27 13:16:13 linux-k95z kernel: [26627][ 905.491293] ---[ end
trace f6e0d4addd5e95a1 ]--
Thx,Thayumanavar S.
------------------------------------------------------------------------------
This SF.net email is sponsored by
Make an app they can't live without
Enter the BlackBerry Developer Challenge
http://p.sf.net/sfu/RIM-dev2dev
