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used up buffer credits?

     I have a raid-5 machine which runs redhat advanced server 2.1(kernel
2.4.9-e.35) crashed today.
It failed at fs/jbd/transaction.c:  J_ASSERT(handle->h_buffer_credits > 0).
It seems the buffer credits
are used up in this cased. Here is the oops.
Anyone know any patch I can apply? Thanks!


 kernel BUG at transaction.c:701!
invalid operand: 0000
Kernel 2.4.9-e.35smp
CPU:    2
EIP:    0010:[<f8839cbf>]    Not tainted
EFLAGS: 00010296
EIP is at do_get_write_access [jbd] 0x43f
eax: 00000024   ebx: ed216300   ecx: c02f6e84   edx: 00848159
esi: ed216300   edi: f3ff4a00   ebp: e51cf9a0   esp: c546fc9c
ds: 0018   es: 0018   ss: 0018
Process keventd (pid: 4, stackpage=c546f000)
Stack: f8842f30 000002bd 00000000 00000000 00000000 d72c0620 f8848118
       02e10000 00001000 f2439be0 ed216300 f4002000 f883fdbe f2439be0
       f4002000 e51cf9a0 f883a0d1 f2439be0 e51cf9a0 00000001 f3ff4a00
Call Trace: [<f8842f30>] .LC7 [jbd] 0x0 (0xc546fc9c)
[<f8848118>] read_block_bitmap [ext3] 0x38 (0xc546fcb4)
[<f883fdbe>] journal_alloc_journal_head [jbd] 0xe (0xc546fcd0)
[<f883a0d1>] journal_get_undo_access_Rsmp_1ec26206 [jbd] 0x41 (0xc546fce4)
[<f8848f9f>] ext3_new_block [ext3] 0x43f (0xc546fd08)
[<c0146e7e>] __wait_on_buffer [kernel] 0x8e (0xc546fd38)
[<c014816e>] getblk [kernel] 0x10e (0xc546fd3c)
[<f884afbd>] ext3_alloc_block [ext3] 0x1d (0xc546fd54)
[<f884b2e5>] ext3_alloc_branch [ext3] 0x45 (0xc546fd70)
[<f884b8b6>] ext3_get_block_handle [ext3] 0x216 (0xc546fdbc)
[<f8820d8f>] rw_intr [sd_mod] 0x20f (0xc546fdf8)
[<f884b9e7>] ext3_get_block [ext3] 0x67 (0xc546fe4c)
[<c0148f81>] __block_prepare_write [kernel] 0x121 (0xc546fe6c)
[<f8842f50>] .LC13 [jbd] 0x0 (0xc546fea0)
[<f883fc87>] __jbd_kmalloc [jbd] 0x27 (0xc546fea4)
[<c01498c2>] block_prepare_write [kernel] 0x22 (0xc546fec0)
[<f884b980>] ext3_get_block [ext3] 0x0 (0xc546fed4)
[<f884be71>] ext3_prepare_write [ext3] 0xb1 (0xc546fee0)
[<f884b980>] ext3_get_block [ext3] 0x0 (0xc546fef0)
[<c01343fb>] __iodesc_write_page [kernel] 0xcb (0xc546ff18)
[<c0134683>] __iodesc_do_write [kernel] 0x23 (0xc546ff4c)
[<c01211cd>] __run_task_queue [kernel] 0x5d (0xc546ff60)
[<c0129880>] context_thread [kernel] 0x170 (0xc546ff78)
[<c0107396>] ret_from_fork [kernel] 0x6 (0xc546ffbc)
[<c0105000>] stext [kernel] 0x0 (0xc546ffd4)
[<c0105000>] stext [kernel] 0x0 (0xc546ffe8)
[<c0105856>] arch_kernel_thread [kernel] 0x26 (0xc546fff0)
[<c0129710>] context_thread [kernel] 0x0 (0xc546fff8)


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