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Bug #16038

open

assertion failed: dmu_buf_hold

Added by Toomas Soome 24 days ago. Updated 3 days ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
zfs - Zettabyte File System
Start date:
Due date:
% Done:

0%

Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:
External Bug:

Description

Panic while running zfs tests:

panic[cpu1]/thread=fffffe0012927c20: 
assertion failed: dmu_buf_hold(os, object, offset, ((char *)(uintptr_t)__func__), &dst_handle, 2) == 0 (0xd == 0x0), file: ../../common/fs/zfs/dmu.c, line: 1726

fffffe00129279e0 fffffffffba4dfc1 ()
fffffe0012927ae0 zfs:dmu_copy_from_buf+222 ()
fffffe0012927b80 zfs:receive_write_byref+1ab ()
fffffe0012927bc0 zfs:receive_process_record+109 ()
fffffe0012927c00 zfs:receive_writer_thread+7e ()
fffffe0012927c10 unix:thread_start+b ()

dumping to /dev/zvol/dsk/rpool/dump, offset 65536, content: kernel

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 #1

Updated by Dan McDonald 3 days ago

I'd not seen this until earlier today while testing something else. Unfortunately I did not manage to obtain the dump.

Of note is that dmu_buf_hold() returns 0xd 13 EACCES.

I also didn't manage to get the full realtime test_results, but my scrapers (for counting pass/fails) captured the lack of a 

/opt/zfs-tests/tests/functional/rsend/send-wDR_encrypted_zvol
test result, suggesting this might be the test that's failing.

If I see this again, I'll report with more information. I'll note that since this bug was filed 21 days ago (Nov 7), I have NOT seen this panic until just today (Nov 28).

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