Date: Fri, 06 Jul 2012 19:19:30 +0200 From: "Michael Ross" <gmx@ross.cx> To: freebsd-stable@freebsd.org Subject: Trouble with gmirror and device ada Message-ID: <op.wg1bqsobg7njmm@michael-think>
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Hello,
I rented a new machine a couple of days ago,
and it happens:
Test: Transfer some 5GB of files to the machine
Works fine as long as I use one of the drives individually.
If I gmirror the drives
gmirror label gm0 ada0
gmirror insert gm0 ada1
...wait for rebuild
the machine reliably locks up on the file transfer,
with a frozen systat screen showing both drives at 100% busy:
10 users Load 0,41 0,44 0,20 6 Jul 18:47
Mem:KB REAL VIRTUAL VN PAGER SWAP
PAGER
Tot Share Tot Share Free in out in
out
Act 23496 6036 600772 12252 1361840 count
All 71680 6632 1074428k 28264 pages
Proc: Interrupts
r p d s w Csw Trp Sys Int Sof Flt cow 121 total
28 199 2 121 4 67 zfod
atkbd0 1
ozfod 4 re0
16
0,4%Sys 0,0%Intr 0,0%User 0,0%Nice 99,6%Idle %ozfod
atapci0 20
| | | | | | | | | | | daefr 94
cpu0:timer
prcfr 23
cpu1:timer
1333 dtbuf 4 totfr
Namei Name-cache Dir-cache 111358 desvn react
Calls hits % hits % 1009 numvn pdwak
3 3 100 32 frevn pdpgs
intrn
Disks ada0 ada1 pass0 pass1 302680 wire
KB/t 16,00 16,00 0,00 0,00 14716 act
tps 1 1 0 0 334260 inact
MB/s 0,02 0,02 0,00 0,00 cache
%busy 100 100 0 0 1361840 free
217488 buf
While the network stays responsive, i. e. I can ping the machine and
_connect_ via ssh,
I can't actually log in (or, in already open shell, execute anything).
System requires a hardware reset. Nothing in the logs whatsoever (no
surprise here).
I have no KVM access to this system.
OS is generic 9.0 stable from two days ago.
I run 8.2-R on an identical machine without trouble.
I run 9.0 stable as of May 4th on an similiar (other CPU and NIC) machine
without trouble.
On both machines, the drives are recognized as ``ad''.
(Why btw? ``man ada'' says ``device ada'', but there is no such option in
the GENERIC config.
Do I get ``ada'' with ``device ATA_CAM ''? I'm going to try this next,
kick ata_cam from the kernel, see if drives are ``ad'' and system doesn't
crash.)
I'd appreciate suggestions on what I could do.
Thanks,
Michael
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