In message <[EMAIL PROTECTED]>, "Steven Hartland" writes: > From: "Ivan Voras" <[EMAIL PROTECTED]> > >> The machine is running with ULE on 7.0 as mention using an Areca 1220 > >> controller over 8 disks in RAID 6 + Hotspare. > > > > I'd suggest you first try to reproduce the stall without ULE, while > > keeping all other parameters exactly the same. > > Ok tried with an updated 7 world / kernel as of this afternoon and with 4BSD > instead of ULE and no difference the machine still locks up with no activity > for anywhere from 20 to 30 seconds. > > Here's a snapshot from top under cpu and io modes when the stall has occured > [top] > last pid: 1102; load averages: 0.02, 0.08, 0.07 > up 0+00:09:37 21:39:13 > 162 processes: 4 running, 145 sleeping, 13 waiting > CPU states: 0.0% user, 0.0% nice, 0.4% system, 0.0% interrupt, 99.6% idle > Mem: 60M Active, 19M Inact, 54M Wired, 56K Cache, 27M Buf, 3809M Free > Swap: 4096M Total, 4096M Free > > PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND > 12 root 1 171 ki31 0K 16K RUN 0 8:59 97.90% idle: cpu0 > 11 root 1 171 ki31 0K 16K RUN 1 8:57 95.80% idle: cpu1 > 1102 root 1 -8 0 4752K 1256K physrd 1 0:01 19.64% newfs > 4 root 1 -8 - 0K 16K - 0 0:00 0.10% g_down > 1048 root 1 96 0 7656K 2544K CPU0 0 0:01 0.00% top > 1054 root 1 96 0 7656K 2348K CPU1 1 0:01 0.00% top > 863 root 1 96 0 131M 15768K select 0 0:00 0.00% httpd > 1055 root 1 96 0 32928K 4656K select 0 0:00 0.00% sshd > > > last pid: 1102; load averages: 0.02, 0.08, 0.07 > up 0+00:09:37 21:39:13 > 162 processes: 4 running, 145 sleeping, 13 waiting > CPU states: 0.0% user, 0.0% nice, 0.4% system, 0.0% interrupt, 99.6% idle > Mem: 60M Active, 19M Inact, 54M Wired, 56K Cache, 27M Buf, 3809M Free > Swap: 4096M Total, 4096M Free > > PID USERNAME VCSW IVCSW READ WRITE FAULT TOTAL PERCENT COMMAND > 12 root 9 154 0 0 0 0 0.00% idle: cpu0 > 11 root 28 5 0 0 0 0 0.00% idle: cpu1 > 1102 root 5 0 0 0 0 0 0.00% newfs > 4 root 14 0 0 0 0 0 0.00% g_down > 1048 root 1 0 0 0 0 0 0.00% top > 1054 root 1 0 0 0 0 0 0.00% top > 863 root 1 0 0 0 0 0 0.00% httpd > [/top]
What *exactly* do you mean by > machine still locks up with no activity for anywhere from 20 to 30 seconds. Is there disk activity? (e.g. activity light(s) flashing if you have them) Does top continue to update the screen during the 20-30 seconds? I'm thinking that newfs has queued up a bunch of disk i/o, and other disk i/o gets locked out, but activities that don't require any disk i/o (like top, once it is up and running) could continue. Is that what is happening? _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "[EMAIL PROTECTED]"
