[DragonFlyBSD - Bug #3441] (Resolved) Avoid disk-label reads during a crash dump

[liweitianux]

Issue #3441 has been updated by liweitianux.

Status changed from New to Resolved

Patch merged. Thank you.

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Bug #3441: Avoid disk-label reads during a crash dump
http://bugs.dragonflybsd.org/issues/3441#change-14870

* Author: sigttou
* Status: Resolved
* Priority: Normal
* Category: Kernel
* Target version: 6.6
* Start date: 2026-10-05
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A crash dump to a disk slice without a disk label can hang before writing
its first data. Checking the dump destination tries to read a disk label
using normal disk I/O, which can wait indefinitely after a panic.

Skip that read while writing a crash dump and use the slice size and
offset already held in memory.

---Files--------------------------------
0001-disk-avoid-reading-a-disk-label-while-dumping.patch (1.28 KB)


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