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Date:      Sat, 17 Jun 2023 03:18:24 +0000
From:      bugzilla-noreply@freebsd.org
To:        fs@FreeBSD.org
Subject:   [Bug 271772] ZFS with L2ARC: panic: VERIFY3(dev->l2ad_hand <= dev->l2ad_evict) failed
Message-ID:  <bug-271772-3630-lum7sDriJG@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-271772-3630@https.bugs.freebsd.org/bugzilla/>
References:  <bug-271772-3630@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D271772

--- Comment #17 from Graham Perrin <grahamperrin@freebsd.org> ---
Created attachment 242818
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D242818&action=
=3Dedit
Screenshot of Netdata for the period 10th=E2=80=9317th June

(In reply to Martin Matuska from comment #15, 2023-06-10)

> Please try with main 4e8d558c9d1cf3e7e424e3fb123b01979c3d57f2 or later

Good for me. Thanks!

----

The one panic below was, I think, unrelated to L2ARC (bug 271945 =E2=80=93 =
whilst using
earlier 267411d164d4-dirty to build world for 4e8d558c9d1c).


% zgrep BOOT /var/log/messages.1.bz2
Jun  9 05:08:01 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
Jun  9 05:21:01 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
Jun  9 08:52:40 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
Jun 11 05:24:09 mowa219-gjp4-8570p-freebsd kernel: Dumping 7112 out of 16260
MB:..1%..11%..21%..31%..41%..51%..61%..71%..81%..91%---<<BOOT>>---
Jun 11 05:48:01 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
Jun 11 08:47:38 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
Jun 11 09:04:48 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
Jun 11 09:09:18 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
% zgrep BOOT /var/log/messages.0.bz2
Jun 11 13:29:13 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
Jun 11 13:50:04 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
Jun 13 06:56:12 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
Jun 15 00:41:53 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
% grep BOOT /var/log/messages
Jun 15 01:12:04 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
Jun 16 02:44:28 mowa219-gjp4-8570p-freebsd kernel: ---<<BOOT>>---
% bectl list -c creation
BE                     Active Mountpoint Space Created
n262604-7ee4066db129-b -      -          12.4G 2023-04-29 21:29
n263189-c2c9ac88c2bb-b -      -          1.45G 2023-05-28 18:43
n263189-c2c9ac88c2bb-c -      -          544M  2023-06-01 06:32
n263189-c2c9ac88c2bb-d -      -          127M  2023-06-03 07:58
n263402-086e0149ae56-a -      -          168M  2023-06-04 17:40
n263402-086e0149ae56-b -      -          45.7M 2023-06-06 06:45
n263447-267411d164d4-a -      -          55.5M 2023-06-09 04:50
n263447-267411d164d4-b -      -          392M  2023-06-09 08:37
n263493-4e8d558c9d1c-a -      -          194M  2023-06-11 08:38
n263493-4e8d558c9d1c-b NR     /          407G  2023-06-15 00:20
% date ; uptime ; uname -aKU
Sat 17 Jun 2023 04:18:00 BST
 4:18a.m.  up 14:33, 8 users, load averages: 0.78, 0.99, 1.11
FreeBSD mowa219-gjp4-8570p-freebsd 14.0-CURRENT FreeBSD 14.0-CURRENT #6
main-n263493-4e8d558c9d1c-dirty: Sun Jun 11 06:22:01 BST 2023=20=20=20=20
grahamperrin@mowa219-gjp4-8570p-freebsd:/usr/obj/usr/src/amd64.amd64/sys/GE=
NERIC
amd64 1400090 1400090
%=20


Re: the attached screenshot, the sum of panic-free uptimes since I began
running 4e8d558c9d1c might be around four days.

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