[OpenIndiana-discuss] [zfs] damaged rpool c < SPA_MAXBLOCKSIZE >> SPA_MINBLOCKSHIFT

[George Wilson]

Ray,

The value it's found is 8389120 which is obviously much larger than 
128K. Can you also provide the following from the corefile:

# echo "90c6040::blkptr" | mdb core

Thanks,
George

On 9/12/12 5:46 PM, Ray Arachelian wrote:
> (Sorry, meant to also send to the lists)
>
> On 09/12/2012 03:06 PM, George Wilson wrote:
>> Ray,
>>
>> It looks like that it's trying to allocate a block that is larger that
>> what ZFS supports. You may want to use the 32-bit version of zdb
>> (/usr/sbin/i86/zdb) so that the corefile will display all the
>> arguments. Then can you post the stack trace by running 'mdb core' and
>> at the mdb prompt type $c.
>>
>> Thanks,
>> George
> No, thank you. :)
>
> root at openindiana:/jack# /usr/sbin/i86/zdb -e -bcsvLF  6427596636711879020
> Assertion failed: c < SPA_MAXBLOCKSIZE >> SPA_MINBLOCKSHIFT, file
> ../../../uts/common/fs/zfs/zio.c, line 217, function zio_buf_alloc
> Abort (core dumped)
> root at openindiana:/jack# mdb core
> Loading modules: [ libumem.so.1 libc.so.1 libzpool.so.1 libavl.so.1
> libcmdutils.so.1 libtopo.so.1 libnvpair.so.1 ld.so.1 ]
>> $c
> libc_hwcap1.so.1`_lwp_kill+0x15(40, 6, faddb3d8, fee980de)
> libc_hwcap1.so.1`raise+0x22(6, 0, faddb428, fee6fa9a)
> libc_hwcap1.so.1`abort+0xf2(65737341, 6f697472, 6166206e, 64656c69,
> 2063203a, 5053203c)
> libc_hwcap1.so.1`_assert_c99+0x85(fee05624, fee05600, d9, fedd226e)
> libzpool.so.1`zio_buf_alloc+0x4f(800200, fee27d58, faddb6a8, fed17afe)
> libzpool.so.1`arc_get_data_buf+0x2f0(90c2ee0, 100, 3ce, fed14776)
> libzpool.so.1`arc_buf_alloc+0x152(85d5000, 800200, 0, 1)
> libzpool.so.1`arc_read_nolock+0x12a(0, 85d5000, 90c6040, 0, 0, 6)
> libzpool.so.1`arc_read+0x119(0, 85d5000, 90c6040, 90c2f70, 0, 0)
> libzpool.so.1`dsl_read+0x39(0, 85d5000, 90c6040, 90c2f70, 0, 0)
> libzpool.so.1`traverse_prefetcher+0x12a(85d5000, 0, 90c6040, 90c2f70,
> faddb930, 90c6000)
> libzpool.so.1`traverse_visitbp+0x1e1(faddbf20, 90c6000, 90c2f70,
> 90c6040, faddb930, 0)
> libzpool.so.1`traverse_dnode+0xbb(faddbf20, 90c6000, 90c2f70, 158, 0, 20028)
> libzpool.so.1`traverse_visitbp+0x443(faddbf20, 8a24c00, 8c5b8a0,
> 8c95080, faddba70, faddbb10)
> libzpool.so.1`traverse_visitbp+0x587(faddbf20, 8a24c00, 8993148,
> 8a2d000, faddbb10, faddbbb0)
> libzpool.so.1`traverse_visitbp+0x587(faddbf20, 8a24c00, 89931d8,
> 8a27000, faddbbb0, faddbc50)
> libzpool.so.1`traverse_visitbp+0x587(faddbf20, 8a24c00, 8993268,
> 855e000, faddbc50, faddbcf0)
> libzpool.so.1`traverse_visitbp+0x587(faddbf20, 8a24c00, 89932f8,
> 8556000, faddbcf0, faddbd90)
> libzpool.so.1`traverse_visitbp+0x587(faddbf20, 8a24c00, 8993388,
> 87e4000, faddbd90, faddbe20)
> libzpool.so.1`traverse_visitbp+0x587(faddbf20, 8a24c00, 8993538,
> 8a24c40, faddbe20, aecfad77)
> libzpool.so.1`traverse_dnode+0xbb(faddbf20, 8a24c00, 8993538, 158, 0, 0)
> libzpool.so.1`traverse_visitbp+0x2ba(faddbf20, 0, 0, 87c3c80, faddbf50)
> libzpool.so.1`traverse_prefetch_thread+0xa6(80478d0)
> libzpool.so.1`taskq_thread+0x9c(80baf08, fef60000, faddbfe8, feeff3be)
> libc_hwcap1.so.1`_thrp_setup+0x9b(feb5f240)
> libc_hwcap1.so.1`_lwp_start(feb5f240, 0, 0, 0, 0, 0)
> root at openindiana:/jack#
>
> I tried to roll back to the last txg, but same thing happened (reboot)
> even though I had used mdb to set zfs_recover=1, will try again with the
> next txg down the line.
> I sorted them and ran them through uniq, here's the last ones incase
> they're meaningful to the above stacktrace:
>
> 180765362
> 180765363
> 180765364
> 180765365
> 180765366
> 180765367
> 180765368
> 180765369
> 180765370
> 180765371
> 180765372
> 180765373
>
>
>
>
>
>
> -------------------------------------------
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