[Bug 214598] head -r333594 and -r358510: dump from ddb unsuccessful on a powerpc64 PowerMac G5. . .

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214598

Mark Millard <marklmi26-fbsd at yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|head -r333594: dump from    |head -r333594 and -r358510:
                   |ddb unsuccessful on a       |dump from ddb unsuccessful
                   |powerpc64 PowerMac G5. . .  |on a powerpc64 PowerMac G5.
                   |                            |. .

--- Comment #4 from Mark Millard <marklmi26-fbsd at yahoo.com> ---
I tested head -r358510 on the old PowerMac G5 (2 sockets,
2 cores each) and . . .

debug.minidump=1 mode had dump hang before even reporting
it was doing anything.

debug.minidump=0 reported writing part of chunk 0 before
hanging. It reported chunk 0 being something like 524288
pages but stopped before finishing it. (That size is
very different than the original report.)

In both cases, the hangup was silent, not reporting any
problems (no panics or such).

Both ways no dump was recognized in the swap partition on
reboot.

The drive is an SSD, which it was historically as well.

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