[LU-8772] obdfilter-survey on ZFS: kernel: PANIC: blkptr at ffff88082b7a8a40 has invalid COMPRESS 0

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 2.9.0
• Type: Bug
• Priority: Critical
• Reporter: Cliff White (Inactive)
• Assignee: WC Triage
• Resolution: Duplicate

Environment

Performance cluster - Tip of lustre master - LU-7650 patch lustre-review build 42182 - http://review.whamcloud.com/23439

• Severity: 3

Description

Attempted to run obdfilter-survey on a ZFS OSS node. Full log attached, summary:

Oct 27 23:00:09 spirit-aeon-1 kernel: WARNING: at kernel/softirq.c:158 local_bh_enable_ip+0x7a/0xa0()
....
Oct 27 23:01:11 spirit-aeon-1 kernel: PANIC: blkptr at ffff88082b7a8a40 has invalid COMPRESS 0
Oct 27 23:01:11 spirit-aeon-1 kernel: Large kmem_alloc(262152, 0x1000), please file an issue at:#012https://github.com/zfsonlinux/zfs/issues/new
Oct 27 23:01:11 spirit-aeon-1 kernel: CPU: 4 PID: 12348 Comm: lctl Tainted: P        W  OE  ------------   3.10.0-327.36.2.el7_lustre.x86_64 #1
Oct 27 23:01:11 spirit-aeon-1 kernel: Hardware name: Newisys NDS-SB1EA/NDS-SB1EA, BIOS 6.001 07/13/2013
Oct 27 23:01:11 spirit-aeon-1 kernel: 0000000000000000 00000000f0ede83e ffff880829ce3910 ffffffff81636631
Oct 27 23:01:11 spirit-aeon-1 kernel: ffff880829ce3948 ffffffffa000ab8f ffff88080e0bb680 000000000001f800
Oct 27 23:01:11 spirit-aeon-1 kernel: 0000000000008001 00000000ffffea00 0000000000000000 ffff880829ce39b0
Oct 27 23:01:11 spirit-aeon-1 kernel: Call Trace:
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffff81636631>] dump_stack+0x19/0x1b
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa000ab8f>] spl_kmem_zalloc+0xff/0x170 [spl]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa00cccdd>] dmu_buf_hold_array_by_dnode+0xad/0x4f0 [zfs]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa00cd213>] dmu_buf_hold_array+0x73/0xb0 [zfs]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa00cd2ad>] dmu_write.part.6+0x5d/0x1a0 [zfs]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa00cd5c6>] dmu_assign_arcbuf+0x1b6/0x1f0 [zfs]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa139a2c2>] osd_write_commit+0x3b2/0x960 [osd_zfs]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa0bed6d4>] ? libcfs_log_return+0x24/0x30 [libcfs]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa1493774>] ofd_commitrw_write+0x1014/0x1c20 [ofd]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa1496f2d>] ofd_commitrw+0x51d/0xa40 [ofd]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa0e37bfa>] echo_client_prep_commit.isra.49+0x69a/0xc30 [obdecho]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa0e410af>] echo_client_iocontrol+0x9bf/0x1c40 [obdecho]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa0ea315e>] class_handle_ioctl+0x19de/0x2150 [obdclass]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa0bf09d7>] ? libcfs_debug_msg+0x57/0x80 [libcfs]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffff81285868>] ? security_capable+0x18/0x20
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffffa0e87712>] obd_class_ioctl+0xd2/0x170 [obdclass]
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffff811f2665>] do_vfs_ioctl+0x2e5/0x4c0
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffff8164225d>] ? __do_page_fault+0x16d/0x450
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffff811f28e1>] SyS_ioctl+0xa1/0xc0
Oct 27 23:01:11 spirit-aeon-1 kernel: [<ffffffff81646d49>] system_call_fastpath+0x16/0x1b

Issue Links

• is related to: LU-8748 set block size for zfs echo object

Comments

[Peter Jones]

Cliff

Can you please check to see whether this issue still appears now that the fix for LU-8748 has landed to master

Peter

[Cliff White (Inactive)]

It has not appeared on current master.

[Peter Jones]

Presumably a dupe of LU-8748 then