[Bug 297062] geom_zero: panics on read
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Date: Sun, 26 Jul 2026 21:14:13 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=297062
Jordan Gordeev <jgopensource@proton.me> changed:
What |Removed |Added
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CC| |jgopensource@proton.me
--- Comment #2 from Jordan Gordeev <jgopensource@proton.me> ---
The panic also occurs on arm64. It's not amd64-specific so the "Hardware" field
of this PR should be changed to "Any". Also, the "Assignee" should probably be
changed to freebsd-geom@.
On FreeBSD 15.1-RELEASE-p1 on arm64 after executing "kldload geom_zero", I
executed the command "dd if=/dev/gzero of=/dev/null bs=5k count=1" and the
system paniced. If the value of the "bs" parameter is "1k", "2k", "3k" or "4k",
there is no panic.
Testing for the presence of this problem can be easily accomplished using the
Live System mode of the FreeBSD install media. I tried it on 15.0-RELEASE and
there was no panic.
This bug might be related to this recently reported one:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=296761
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