[LU-6716] osc_io_submit()) ASSERTION( osc == oap->oap_obj ) failed:

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 2.6.0
• Type: Bug
• Priority: Minor
• Reporter: Andriy Skulysh
• Assignee: WC Triage
• Resolution: Duplicate
• Severity: 3

Description

[<ffffffffa0c89895>] libcfs_debug_dumpstack+0x55/0x80 [libcfs]
<4> [<ffffffffa0c89e97>] lbug_with_loc+0x47/0xb0 [libcfs]
<4> [<ffffffffa08ead1b>] osc_io_submit+0x47b/0x4e0 [osc]
<4> [<ffffffffa0477bde>] cl_io_submit_rw+0x6e/0x160 [obdclass]
<4> [<ffffffffa0937180>] lov_io_submit+0x2d0/0x4b0 [lov]
<4> [<ffffffffa0c99a01>] ? libcfs_debug_msg+0x41/0x50 [libcfs]
<4> [<ffffffffa0477bde>] cl_io_submit_rw+0x6e/0x160 [obdclass]
<4> [<ffffffffa047a290>] cl_io_read_page+0x180/0x190 [obdclass]
<4> [<ffffffffa0e70021>] ll_readpage+0x91/0x1a0 [lustre]
<4> [<ffffffff811213bc>] generic_file_aio_read+0x1fc/0x700
<4> [<ffffffffa0ea2abe>] vvp_io_read_start+0x22e/0x450 [lustre]
<4> [<ffffffffa0477e6a>] cl_io_start+0x6a/0x140 [obdclass]
<4> [<ffffffffa047bff4>] cl_io_loop+0xb4/0x1b0 [obdclass]
<4> [<ffffffffa0e4167a>] ll_file_io_generic+0x44a/0xa50 [lustre]
<4> [<ffffffffa0e41db0>] ll_file_aio_read+0x130/0x2b0 [lustre]
<4> [<ffffffffa0e42259>] ll_file_read+0x159/0x290 [lustre]
<4> [<ffffffff811897b5>] vfs_read+0xb5/0x1a0
<4> [<ffffffff811898f1>] sys_read+0x51/0x90
<4> [<ffffffff8100b072>] system_call_fastpath+0x16/0x1b

Comments

[Andriy Skulysh]

The assertion fails when read covers pages from 2 stripes and a page from 2nd stripe is in the cache but not uptodate.

[Gerrit Updater]

Andriy Skulysh ([e-mail]) uploaded a new patch: http://review.whamcloud.com/15252
Subject: LU-6716 lov: osc_io_submit() ASSERTION(osc == oap->oap_obj)
Project: fs/lustre-release
Branch: b2_6
Current Patch Set: 1
Commit: 700cf43ff03a828d5a3a2504d422f19eace30fec

[Andriy Skulysh]

patch: http://review.whamcloud.com/15252

[Andriy Skulysh]

The issue was fixed in master by
LU-3259 clio: Revise read ahead implementation

[Peter Jones]

Thanks Andriy. Closing as a duplicate of LU-3259

[Gerrit Updater]

Jian Yu ([e-mail]) uploaded a new patch: http://review.whamcloud.com/17861
Subject: LU-6716 lov: osc_io_submit() ASSERTION(osc == oap->oap_obj)
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: aeddbb297a0f0209f1819599627db6704f65145e