lkml.org 
[lkml]   [2007]   [Mar]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectJFFS2: BUG: sleeping function called from invalid context
    When testing how JFFS2 handles write errors, the following message appears:

    BUG: sleeping function called from invalid context at include/linux/writeback.h:76

    Here is the terminal output:



    # uname -a
    Linux ahunter-desktop 2.6.20ded11 #13 SMP PREEMPT Mon Mar 19 16:20:42 EET 2007 i686 GNU/Linux
    # insmod $NANDSIM weakpages=444
    NAND device: Manufacturer ID: 0x98, Chip ID: 0x39 (Toshiba NAND 8MiB 1,8V 8-bit)
    flash size: 8 MiB
    page size: 512 bytes
    OOB area size: 16 bytes
    sector size: 8 KiB
    pages number: 16384
    pages per sector: 16
    bus width: 8
    bits in sector size: 13
    bits in page size: 9
    bits in OOB size: 4
    flash size with OOB: 8448 KiB
    page address bytes: 3
    sector address bytes: 2
    options: 0x62
    Scanning device for bad blocks
    Creating 1 MTD partitions on "NAND 8MiB 1,8V 8-bit":
    0x00000000-0x00800000 : "NAND simulator partition 0"
    # mount -t jffs2 mtd0 /mnt/test_file_system
    JFFS2 version 2.2. (NAND) (SUMMARY) (C) 2001-2006 Red Hat, Inc.
    # pwd
    /home/git/fs-tests/integrity
    # ./integck -n0
    [nandsim] warning: simulating write failure in page 444
    jffs2_flush_wbuf(): Write failed with -5
    In jffs2_wbuf_recover
    Skipping node at 0x00036000(3)-0x000361c0 which is either before 0x00037800 or obsolete
    Skipping node at 0x000361c0(3)-0x00036204 which is either before 0x00037800 or obsolete
    Skipping node at 0x00036204(3)-0x00036f14 which is either before 0x00037800 or obsolete
    First node to be recovered is at 0x00036f14(3)-0x00037828
    wbuf recover 00036f14-000378fc (2536 bytes in 3 nodes)
    Write 0x800 bytes at 0x007a2000 in wbuf recover
    Recovery of wbuf succeeded to 007a2000
    Refiling block of 00000914 at 00036f14(3) to 007a2000
    calling jffs2_gc_fetch_inode
    BUG: sleeping function called from invalid context at include/linux/writeback.h:76
    in_atomic():1, irqs_disabled():0
    2 locks held by jffs2_gcd_mtd0/5710:
    #0: (&c->wbuf_sem){----}, at: [<f8b09814>] jffs2_flash_writev+0x67/0x5c0 [jffs2]
    #1: (&c->erase_completion_lock){--..}, at: [<f8b085f8>] jffs2_wbuf_recover+0xb03/0x11f1 [jffs2]
    [<c01040df>] show_trace_log_lvl+0x1a/0x30
    [<c0104806>] show_trace+0x12/0x14
    [<c01048aa>] dump_stack+0x16/0x18
    [<c011cee4>] __might_sleep+0xb8/0xcb
    [<c0181ed9>] ifind_fast+0x48/0x86
    [<c01821d9>] iget_locked+0x2a/0x133
    [<f8b06713>] jffs2_gc_fetch_inode+0x18e/0x229 [jffs2]
    [<f8b08853>] jffs2_wbuf_recover+0xd5e/0x11f1 [jffs2]
    [<f8b0909c>] __jffs2_flush_wbuf+0x3b6/0x791 [jffs2]
    [<f8b09b14>] jffs2_flash_writev+0x367/0x5c0 [jffs2]
    [<f8afb59f>] jffs2_write_dnode+0x180/0x403 [jffs2]
    [<f8b02626>] jffs2_garbage_collect_dnode+0x7d3/0x8cd [jffs2]
    [<f8b004b8>] jffs2_garbage_collect_live+0x242/0x31e [jffs2]
    [<f8b00148>] jffs2_garbage_collect_pass+0x99b/0xac9 [jffs2]
    [<f8b04ad7>] jffs2_garbage_collect_thread+0x341/0x396 [jffs2]
    [<c0103d53>] kernel_thread_helper+0x7/0x14
    =======================
    Refiling block of 0000008c at 00037828(3) to 007a2914
    calling jffs2_gc_fetch_inode
    Refiling block of 00000048 at 000378b4(2) to 007a29a0
    calling jffs2_gc_fetch_inode
    wbuf recovery completed OK. wbuf_ofs 0x007a2800, len 0x1e8
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-03-20 11:57    [W:0.052 / U:30.160 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site