Date: Sat, 9 Sep 2006 12:38:13 -0500 From: Karl Denninger <karl@denninger.net> To: freebsd-stable@freebsd.org Subject: ARRRRGH! Guys, who's breaking -STABLE's GMIRROR code?! Message-ID: <20060909173813.GA1388@FS.denninger.net>
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This is not cool folks.
Anyone know what I have to roll back to - and what files I have to roll back -
to stop this cluster-##@kery?
tty ad4 ad6 twed0 cpu
tin tout KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni sy in id
224 453 0.61 0 0.00 120.16 427 50.06 0.61 0 0.00 2 0 4 2 92
See that? There's nothing really running. What I tried to do was
"gmirror insert b500 ad4s1"
The command took, but NO IO WAS TAKEN TO THE TARGET DRIVE FOR REBUILDING; the
SOURCE disk was locked in a 100% I/O run, and after stopping the rebuild THE
I/O INFINITE LOOP IS STILL GOING ON!
I had a PRODUCTION MACHINE go down on my last night over this when it
attempted to run its backup process and wedged due to process table overflow;
the first attempt apparently never finished the day before and the second, to
a SECOND backup disk (I have a rolling disk backup system using GMIRROR's
resync) caused the system to wedge in an I/O wait.
This was also not cleanly restartable, as the root partition had multiple
error on it that fsck -p couldn't fix.
This is a SEVERE emergency in that anyone who has a disk that has to be
rebuilt under -STABLE right now (sources as of 7 September) is screwed, blued
and tattooed.
That PRODUCTION machine is running UNPROTECTED right now (no mirroring) as a
consequence of this, and I can neither back it up using the usual mirror NOR
restore its redundancy!
I see only one comment about GMIRROR changes in the commitlogs since 9/1, and
it claims to be (mostly) cosmetic.
Obviously not!
--
--
Karl Denninger (karl@denninger.net) Internet Consultant & Kids Rights Activist
http://www.denninger.net My home on the net - links to everything I do!
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