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Date:      Fri, 16 Apr 2021 12:31:02 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 255121] Memory modified after free
Message-ID:  <bug-255121-227-a4PYOcWpTX@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-255121-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-255121-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D255121

--- Comment #1 from tschweikle@gmail.com ---
With high loads on zfs systems crash reliably with
panic: Memory modified after free 0xfffff801cfdcb000(4096) val=3Ddcadc0de
@0xfffff801cfdcb9c4
cpuid =3D 0
KDB: stack backtrace:
db_trace_self_wrapper()
vpanic()
panic()
trash_ctor()
item_ctor()
adb_alloc_chunks()
adb_alloc()
arc_hdr_alloc_adb()
arc_write_ready()
zio_ready()
zio_execute()
taskqueue_run_locked()
taskqueue_thread_loop()
fork_exit()
fork_trampoline()
--- trap 0, rip =3D 0, rsp =3D 0, rbp =3D 0 ---
KDB: enter: panic

--=20
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