[Bug 276341] zfs panic: VERIFY3(rc->rc_count == number) failed

From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 10 Feb 2024 16:41:19 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=276341

--- Comment #12 from John F. Carr <jfc@mit.edu> ---
My first panic was on December 12.  The kernel was based off
c711af7727824da79d87f375f3d6829feec3799a with some local changes that should
not affect this bug.  An earlier kernel based off of
21fce617d1de231a30833cdd9819ef61277b08d8 did not crash the one time it was
rebooted.  In between the compiler was upgraded to llvm 17 and the following
changes were made to sys/contrib/openzfs:

3494f7c019fc Notable upstream pull request merges:  #15539 687e4d7f9 Extend
import_progress kstat with a notes field  #15544 c7b611926 Allow block cloning
across encrypted datasets  #15553 adcea23cb ZIO: Add overflow checks for linear
buffers  #15593 5f2700eee zpool: flush output before sleeping  #15609 3e4bef52b
Only provide execvpe(3) when needed  #15610 735ba3a7b Use uint64_t instead of
u_int64_t  #15612 bcd83ccd2 ZIL: Remove TX_CLONE_RANGE replay for ZVOLs  #15617
55b764e06 ZIL: Do not clone blocks from the future  #15623 727497ccd
module/icp/asm-arm/sha2: enable non-SIMD asm kernels                   on
armv5/6  #15625 9743d0963 BRT: Limit brt_vdev_dump() to only one vdev  #15629
f9765b182 zdb: Dump encrypted write and clone ZIL records  #15634 2aa3a482a
ZIL: Remove 128K into 2x68K LWB split optimization  #15639 11656234b FreeBSD:
Ensure that zfs_getattr() initializes the                   va_rdev field 
#15647 4836d293c zfs_refcount_remove: explictly ignore returns  #15649
f0cb6482e setproctitle: fix ununitialised variable  #15650 450f2d0b0 import:
ignore return on hostid lookups
525fe93dc748 zfs: merge openzfs/zfs@a03ebd9be
db0a4f2d7a65 openzfs: unbreak 32-bit builds.
2276e53940c2 zfs: merge openzfs/zfs@688514e47
c5405d1c8507 vn_copy_file_range(): provide ENOSYS fallback to
vn_generic_copy_file_range()

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