AW: UBI leb_write_unlock NULL pointer Oops (continuation)
Wiedemer, Thorsten (Lawo AG)
Thorsten.Wiedemer at lawo.com
Mon Feb 3 05:31:53 EST 2014
Hi,
here the log of the kernel oops:
Dec 25 03:59:22 kernel: Unable to handle kernel NULL pointer dereference at virtual address 0000000c
Dec 25 03:59:22 kernel: pgd = c7148000
Dec 25 03:59:22 kernel: [0000000c] *pgd=8709b831, *pte=00000000, *ppte=00000000
Dec 25 03:59:22 kernel: Internal error: Oops: 17 [#1] PREEMPT ARM
Dec 25 03:59:22 kernel: Modules linked in:
Dec 25 03:59:22 kernel: CPU: 0 Tainted: G O (3.6.11 #1)
Dec 25 03:59:22 kernel: PC is at __up_write+0x3c/0x1a8
Dec 25 03:59:22 kernel: LR is at __up_write+0x24/0x1a8
Dec 25 03:59:22 kernel: pc : [<c0229400>] lr : [<c02293e8>] psr: a0000093
Dec 25 03:59:22 kernel: sp : c7225cc8 ip : 00020000 fp : c79fba00
Dec 25 03:59:22 kernel: r10: 00000523 r9 : 00000001 r8 : c7b33000
Dec 25 03:59:22 kernel: r7 : c793a800 r6 : c7bd473c r5 : c7bd4738 r4 : c7bd4720
Dec 25 03:59:22 kernel: r3 : 00000000 r2 : 00000002 r1 : 00000001 r0 : 00000002
Dec 25 03:59:22 kernel: Flags: NzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user
Dec 25 03:59:22 kernel: Control: 0005317f Table: 87148000 DAC: 00000015
Dec 25 03:59:22 kernel: Process Master (pid: 739, stack limit = 0xc7224270)
Dec 25 03:59:22 kernel: Stack: (0xc7225cc8 to 0xc7226000)
Dec 25 03:59:22 kernel: 5cc0: c7b33000 60000013 00001000 c7bd4720 c7224038 00000523
Dec 25 03:59:22 kernel: 5ce0: c793a800 c7b33000 00000001 00000523 c79fba00 c02d0618 0001e800 0000071c
Dec 25 03:59:22 kernel: 5d00: 00000523 00000000 c793a800 c02d0d10 00000800 00000523 00000001 c7271700
Dec 25 03:59:22 kernel: 5d20: 00000000 c7b33000 00000000 c7b2f1a8 00000a28 00000523 00000001 c01e03e4
Dec 25 03:59:22 kernel: 5d40: 00000000 00000800 00000523 00000001 00000080 c7b33000 c7592a90 c7abd504
Dec 25 03:59:22 kernel: 5d60: c7abd4b4 c02cfbd4 00000800 00000800 c7b2f000 c7b33000 00000800 00000523
Dec 25 03:59:22 kernel: 5d80: c7abd508 c01da97c 00000800 c7abd4b4 c7b33000 c7abd490 c7b2f000 c7abd490
Dec 25 03:59:22 kernel: 5da0: c7b2f000 00000800 00000538 c01db54c 00000800 00000000 c7abd4b4 00000001
Dec 25 03:59:22 kernel: 5dc0: 00000090 c7b2f000 c7abd490 c01dcc00 00000000 c7592a90 c7b2f000 c7592aec
Dec 25 03:59:22 kernel: 5de0: 00000000 00000725 c72850a0 c7592a90 00000001 c01d1238 00000724 00000000
Dec 25 03:59:22 kernel: 5e00: 00000000 00000724 00000000 00000725 00000000 c00eee08 00000724 00000000
Dec 25 03:59:22 kernel: 5e20: 00000000 c7225ec8 c72850a0 00000000 00000000 c0096b68 00000725 00000000
Dec 25 03:59:22 kernel: 5e40: 00000000 00000000 c7b2f000 c7225ec8 00000001 c7225ec0 00000000 c7592bd0
Dec 25 03:59:22 kernel: 5e60: b427e578 c01d2444 00000000 00000000 7e711374 0000000b 0009e016 c7592a90
Dec 25 03:59:22 kernel: 5e80: 00000000 00100000 00000000 00000000 00000000 000000a0 c7225f88 c72850a0
Dec 25 03:59:22 kernel: 5ea0: fffffdee 00000725 c71c20a0 c7224000 00000000 c00c41a0 00000000 00000000
Dec 25 03:59:22 kernel: 5ec0: ae59a748 00000725 00000000 00000000 00000000 00000001 ffffffff c72850a0
Dec 25 03:59:22 kernel: 5ee0: 00000000 00000000 00000000 00000000 c71c20a0 00000000 00000000 00000000
Dec 25 03:59:22 kernel: 5f00: 00000725 00000000 00000000 00000000 00000725 00000000 00000725 00000000
Dec 25 03:59:22 kernel: 5f20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Dec 25 03:59:22 kernel: 5f40: 00000000 00000000 c72850a0 ae59a748 c7225f88 ae59a748 00000725 c00c48c0
Dec 25 03:59:22 kernel: 5f60: c72850a0 c00c5d04 00000000 00000000 c72850a0 ae59a748 00000725 c00c4bbc
Dec 25 03:59:22 kernel: 5f80: 00000022 00000001 00000000 00000000 00000725 00000725 b427e500 00000004
Dec 25 03:59:22 kernel: 5fa0: c0012f48 c0012dc0 00000725 00000725 0000002b ae59a748 00000725 b45a2ab0
Dec 25 03:59:22 kernel: 5fc0: 00000725 00000725 b427e500 00000004 b427e670 b427e62c b45be628 b427e578
Dec 25 03:59:22 kernel: 5fe0: 00000000 b427e460 b6c652a8 b6c65a24 80000010 0000002b 00000000 00000000
Dec 25 03:59:22 kernel: [<c0229400>] (__up_write+0x3c/0x1a8) from [<c02d0618>] (leb_write_unlock+0x74/0xf0)
Dec 25 03:59:22 kernel: [<c02d0618>] (leb_write_unlock+0x74/0xf0) from [<c02d0d10>] (ubi_eba_write_leb+0x94/0x820)
Dec 25 03:59:22 kernel: [<c02d0d10>] (ubi_eba_write_leb+0x94/0x820) from [<c02cfbd4>] (ubi_leb_write+0xc4/0xe8)
Dec 25 03:59:22 kernel: [<c02cfbd4>] (ubi_leb_write+0xc4/0xe8) from [<c01da97c>] (ubifs_leb_write+0x9c/0x144)
Dec 25 03:59:22 kernel: [<c01da97c>] (ubifs_leb_write+0x9c/0x144) from [<c01db54c>] (ubifs_wbuf_sync_nolock+0xf0/0x360)
Dec 25 03:59:22 kernel: [<c01db54c>] (ubifs_wbuf_sync_nolock+0xf0/0x360) from [<c01dcc00>] (ubifs_sync_wbufs_by_inode+0xac/0xe8)
Dec 25 03:59:22 kernel: [<c01dcc00>] (ubifs_sync_wbufs_by_inode+0xac/0xe8) from [<c01d1238>] (ubifs_fsync+0x78/0xb4)
Dec 25 03:59:22 kernel: [<c01d1238>] (ubifs_fsync+0x78/0xb4) from [<c00eee08>] (generic_write_sync+0x70/0xa0)
Dec 25 03:59:22 kernel: [<c00eee08>] (generic_write_sync+0x70/0xa0) from [<c0096b68>] (generic_file_aio_write+0xb0/0xd4)
Dec 25 03:59:22 kernel: [<c0096b68>] (generic_file_aio_write+0xb0/0xd4) from [<c01d2444>] (ubifs_aio_write+0xf8/0x18c)
Dec 25 03:59:22 kernel: [<c01d2444>] (ubifs_aio_write+0xf8/0x18c) from [<c00c41a0>] (do_sync_write+0x9c/0xd0)
Dec 25 03:59:22 kernel: [<c00c41a0>] (do_sync_write+0x9c/0xd0) from [<c00c48c0>] (vfs_write+0x9c/0x148)
Dec 25 03:59:22 kernel: [<c00c48c0>] (vfs_write+0x9c/0x148) from [<c00c4bbc>] (sys_write+0x38/0x78)
Dec 25 03:59:22 kernel: [<c00c4bbc>] (sys_write+0x38/0x78) from [<c0012dc0>] (ret_fast_syscall+0x0/0x2c)
Dec 25 03:59:22 kernel: Code: e4863004 e5953004 e1560003 0a00002a (e593200c)
Dec 25 03:59:22 kernel: ---[ end trace 3a4c18efd3a1d78b ]---
Dec 25 03:59:22 kernel: note: Master[739] exited with preempt_count 2
This was a remote log via udp, so the lines were a bit misordered and theoretically there may be missing lines. But I reordered it and I think it's complete.
Would be great if you have some hints.
Best regards,
Thorsten
-----Ursprüngliche Nachricht-----
Von: Richard Weinberger [mailto:richard.weinberger at gmail.com]
Gesendet: Montag, 3. Februar 2014 10:39
An: Wiedemer, Thorsten (Lawo AG)
Cc: linux-mtd at lists.infradead.org
Betreff: Re: UBI leb_write_unlock NULL pointer Oops (continuation)
On Mon, Feb 3, 2014 at 9:51 AM, Wiedemer, Thorsten (Lawo AG) <Thorsten.Wiedemer at lawo.com> wrote:
> Hi list,
>
> in July, 2013, a thread named "UBI leb_write_unlock NULL pointer Oops" was started, but not resolved.
> We have kernel 3.6.11 running on an Freescale i.MX257 (arm926) with UBIFS on a NAND Flash.
> I run into the same problem. Is there a solution for this problem ?
>
> I already added the patches:
> - 605c912bb843c024b1ed173dc427cd5c08e5d54d UBIFS: fix a horrid bug
> - 33f1a63ae84dfd9ad298cf275b8f1887043ced36 UBIFS: prepare to fix a
> horrid bug But this doesn't resolve the problem.
>
> If necessary, I will provide further information about our system, but perhaps someone can give me a hint where I can find the solution if it exists already.
Please share the full kernel log with us.
--
Thanks,
//richard
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