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Subject[BUG] 2.6.0-test3 - loop oopses
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I cannot create initrd under 2.6.0-test3 anymore. It oopses in mount or 
unmount and shortly after system hangs due to oopses in bdflush.

-andrey

Here are oopses I had:

Aug 10 00:16:35 localhost kernel: Unable to handle kernel paging request at
virtual address c224d140
Aug 10 00:16:35 localhost kernel: printing eip:
Aug 10 00:16:35 localhost kernel: c014dfc9
Aug 10 00:16:35 localhost kernel: *pde = 0000a067
Aug 10 00:16:35 localhost kernel: *pte = 0224d000
Aug 10 00:16:35 localhost kernel: Oops: 0000 [#2]
Aug 10 00:16:35 localhost kernel: CPU: 0
Aug 10 00:16:35 localhost kernel: EIP: 0060:[<c014dfc9>] Tainted: P
Aug 10 00:16:35 localhost kernel: EFLAGS: 00010246
Aug 10 00:16:35 localhost kernel: EIP is at file_ra_state_init+0x19/0x30
Aug 10 00:16:35 localhost kernel: eax: c224d140 ebx: c8679004 ecx:
00000000 edx: c8679054
Aug 10 00:16:35 localhost kernel: esi: c6cb1004 edi: c8679078 ebp:
c0f53f2c esp: c0f53f28
Aug 10 00:16:35 localhost kernel: ds: 007b es: 007b ss: 0068
Aug 10 00:16:35 localhost kernel: Process mount (pid: 2693,
threadinfo=c0f52000 task=c0a72000)
Aug 10 00:16:35 localhost kernel: Stack: cffaf224 c0f53f54 c0168404 c8679054
c7d480a0 00000004 cc0c8004 ffffffe9
Aug 10 00:16:35 localhost kernel: 00008000 cebe1000 bfffec10 c0f53f9c c0168391
cc0c8004 cffaf224 00008000
Aug 10 00:16:35 localhost kernel: cc0c8004 cffaf224 0000000a bfffec10 bfffec10
00000101 00000001 00008001
Aug 10 00:16:35 localhost kernel: Call Trace:
Aug 10 00:16:35 localhost kernel: [<c0168404>] dentry_open+0x64/0x240
Aug 10 00:16:35 localhost kernel: [<c0168391>] filp_open+0x51/0x60
Aug 10 00:16:35 localhost kernel: [<c016893f>] sys_open+0x3f/0x70
Aug 10 00:16:35 localhost kernel: [<c010b7a7>] syscall_call+0x7/0xb
Aug 10 00:16:35 localhost kernel:
Aug 10 00:16:35 localhost kernel: Code: 8b 00 89 42 18 5f 5d c3 eb 0d 90 90 90
90 90 90 90 90 90 90

next one

Aug 10 01:15:42 localhost kernel: Unable to handle kernel paging request at
virtual address ccc55148
Aug 10 01:15:42 localhost kernel: printing eip:
Aug 10 01:15:42 localhost kernel: c0148b77
Aug 10 01:15:42 localhost kernel: *pde = 00035067
Aug 10 01:15:42 localhost kernel: *pte = 0cc55000
Aug 10 01:15:42 localhost kernel: Oops: 0000 [#1]
Aug 10 01:15:42 localhost kernel: CPU: 0
Aug 10 01:15:42 localhost kernel: EIP: 0060:[<c0148b77>] Tainted: P
Aug 10 01:15:42 localhost kernel: EFLAGS: 00010246
Aug 10 01:15:42 localhost kernel: EIP is at __filemap_fdatawrite+0x77/0x140
Aug 10 01:15:42 localhost kernel: eax: ccc55140 ebx: 00000000 ecx:
cf55db04 edx: 00000001
Aug 10 01:15:42 localhost kernel: esi: cb6290a0 edi: cf55daec ebp:
c4691f08 esp: c4691ea8
Aug 10 01:15:42 localhost kernel: ds: 007b es: 007b ss: 0068
Aug 10 01:15:42 localhost kernel: Process umount (pid: 21707,
threadinfo=c4690000 task=c46b8000)
Aug 10 01:15:42 localhost kernel: Stack: 00000000 00000082 c4691ebc c013e6fb
80010c00 00000000 00000001 00000000
Aug 10 01:15:42 localhost kernel: 00000000 00000000 00000000 00000000 00000000
00000000 00000001 00000000
Aug 10 01:15:42 localhost kernel: 00000000 00000000 00000000 00000000 00000000
00000000 cf55daec cf55daec
Aug 10 01:15:42 localhost kernel: Call Trace:
Aug 10 01:15:42 localhost kernel: [<c013e6fb>] kernel_text_address+0x3b/0x50
Aug 10 01:15:42 localhost kernel: [<c0148c59>] filemap_fdatawrite+0x19/0x20
Aug 10 01:15:42 localhost kernel: [<c016d9e6>] sync_blockdev+0x26/0x50
Aug 10 01:15:42 localhost kernel: [<c0176411>] blkdev_put+0x241/0x260
Aug 10 01:15:42 localhost kernel: [<c0176430>] blkdev_close+0x0/0x20
Aug 10 01:15:42 localhost kernel: [<c016d16d>] __fput+0x13d/0x150
Aug 10 01:15:42 localhost kernel: [<c016b44b>] filp_close+0x4b/0x80
Aug 10 01:15:42 localhost kernel: [<c016b510>] sys_close+0x90/0x110
Aug 10 01:15:42 localhost kernel: [<c010b97f>] syscall_call+0x7/0xb
Aug 10 01:15:42 localhost kernel:
Aug 10 01:15:42 localhost kernel: Code: 8b 50 08 31 c0 85 d2 75 7f bf 00 e0 ff
ff 21 e7 ff 47 14 8d

next one

Aug 10 00:16:21 localhost kernel: loop: loaded (max 8 devices)
Aug 10 00:16:23 localhost kernel: Unable to handle kernel paging request at
virtual address c224d148
Aug 10 00:16:23 localhost kernel: printing eip:
Aug 10 00:16:23 localhost kernel: c0147107
Aug 10 00:16:23 localhost kernel: *pde = 0000a067
Aug 10 00:16:23 localhost kernel: *pte = 0224d000
Aug 10 00:16:23 localhost kernel: Oops: 0000 [#1]
Aug 10 00:16:23 localhost kernel: CPU: 0
Aug 10 00:16:23 localhost kernel: EIP: 0060:[<c0147107>] Tainted: P
Aug 10 00:16:23 localhost kernel: EFLAGS: 00010246
Aug 10 00:16:23 localhost kernel: EIP is at __filemap_fdatawrite+0x77/0x140
Aug 10 00:16:23 localhost kernel: eax: c224d140 ebx: cf55dce0 ecx:
cf55dcf8 edx: 00000001
Aug 10 00:16:23 localhost kernel: esi: c7d480a0 edi: cf55dce0 ebp:
c066bf04 esp: c066beac
Aug 10 00:16:23 localhost kernel: ds: 007b es: 007b ss: 0068
Aug 10 00:16:23 localhost kernel: Process umount (pid: 2523,
threadinfo=c066a000 task=c0add000)
Aug 10 00:16:23 localhost kernel: Stack: c066bec0 c011e3e5 80010c00 00000000
00000001 00000000 00000000 00000000
Aug 10 00:16:23 localhost kernel: 00000000 00000000 00000000 00000000 00000001
00000000 00000000 00000000
Aug 10 00:16:23 localhost kernel: 00000000 00000000 00000000 cf55dce0 c7d480a0
cf55dce0 c066bf14 c01471de
Aug 10 00:16:23 localhost kernel: Call Trace:
Aug 10 00:16:23 localhost kernel: [<c011e3e5>]
smp_apic_timer_interrupt+0xe5/0x150
Aug 10 00:16:23 localhost kernel: [<c01471de>] filemap_fdatawrite+0xe/0x20
Aug 10 00:16:23 localhost kernel: [<c016ac4d>] sync_blockdev+0x1d/0x40
Aug 10 00:16:23 localhost kernel: [<c01730a2>] blkdev_put+0x232/0x250
Aug 10 00:16:23 localhost kernel: [<c016a437>] __fput+0x137/0x150
Aug 10 00:16:23 localhost kernel: [<c01689c8>] filp_close+0x38/0x60
Aug 10 00:16:23 localhost kernel: [<c0168a82>] sys_close+0x92/0x120
Aug 10 00:16:23 localhost kernel: [<c010b7a7>] syscall_call+0x7/0xb
Aug 10 00:16:23 localhost kernel:
Aug 10 00:16:23 localhost kernel: Code: 8b 50 08 31 c0 85 d2 0f 85 82 00 00 00
bf 00 e0 ff ff 21 e7

and more

Aug 10 00:19:45 localhost kernel: loop: loaded (max 8 devices)
Aug 10 00:19:46 localhost kernel: Unable to handle kernel paging request at
virtual address ce9fb148
Aug 10 00:19:46 localhost kernel: printing eip:
Aug 10 00:19:46 localhost kernel: c0147107
Aug 10 00:19:46 localhost kernel: *pde = 0003c067
Aug 10 00:19:46 localhost kernel: *pte = 0e9fb000
Aug 10 00:19:46 localhost kernel: Oops: 0000 [#1]
Aug 10 00:19:46 localhost kernel: CPU: 0
Aug 10 00:19:46 localhost kernel: EIP: 0060:[<c0147107>] Not tainted
Aug 10 00:19:46 localhost kernel: EFLAGS: 00010246
Aug 10 00:19:46 localhost kernel: EIP is at __filemap_fdatawrite+0x77/0x140
Aug 10 00:19:46 localhost kernel: eax: ce9fb140 ebx: c8927830 ecx:
c8927848 edx: 00000001
Aug 10 00:19:46 localhost kernel: esi: c3b010a0 edi: c8927830 ebp:
c366ff04 esp: c366feac
Aug 10 00:19:46 localhost kernel: ds: 007b es: 007b ss: 0068
Aug 10 00:19:46 localhost kernel: Process umount (pid: 2253,
threadinfo=c366e000 task=c3694000)
Aug 10 00:19:46 localhost kernel: Stack: c366fed4 c012208b c1248f38 00000000
00000001 00000000 00000000 00000000
Aug 10 00:19:46 localhost kernel: 00000000 00000000 00000000 00000000 00000001
00000000 00000000 00000000
Aug 10 00:19:46 localhost kernel: 00000000 00000000 00000000 c8927830 c3b010a0
c8927830 c366ff14 c01471de
Aug 10 00:19:46 localhost kernel: Call Trace:
Aug 10 00:19:46 localhost kernel: [<c012208b>] change_page_attr+0xab/0xe0
Aug 10 00:19:46 localhost kernel: [<c01471de>] filemap_fdatawrite+0xe/0x20
Aug 10 00:19:46 localhost kernel: [<c016ac4d>] sync_blockdev+0x1d/0x40
Aug 10 00:19:46 localhost kernel: [<c01730a2>] blkdev_put+0x232/0x250
Aug 10 00:19:46 localhost kernel: [<c016a437>] __fput+0x137/0x150
Aug 10 00:19:46 localhost kernel: [<c01689c8>] filp_close+0x38/0x60
Aug 10 00:19:46 localhost kernel: [<c0168a82>] sys_close+0x92/0x120
Aug 10 00:19:46 localhost kernel: [<c010b7a7>] syscall_call+0x7/0xb
Aug 10 00:19:46 localhost kernel:
Aug 10 00:19:46 localhost kernel: Code: 8b 50 08 31 c0 85 d2 0f 85 82 00 00 00
bf 00 e0 ff ff 21 e7

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