Marc G. Fournier
2006-Jun-26 11:09 UTC
leaking blocked processes in vmstat ... how to debug?
k, this is getting ridiculous ... I'm going to upgrade my kernel to
something a bit newer then May 25th, which may (or may not) fix it, but:
0 28 0 8015508 175352 53 3 4 2 584 0 90 0 471 2299 1210 6 8 86
0 28 0 8016704 174416 82 0 0 0 77 0 36 0 350 2191 1155 8 6 86
1 28 0 8016772 167640 84 1 7 0 71 0 63 0 455 3119 1299 31 8 61
0 28 0 8014456 166416 95 0 1 0 123 0 50 0 480 3463 1733 19 8 73
28 blocked processes, according to the above, but according to ps, this is
all that is blocked, and the system ones seem to be the exact same ones
blocked on another system with only '6 blocked', and another with only
'3
blocked', so I'm guessing those ones *aren't* counted in vmstat:
# ps ax -O ppid,flags,mwchan | awk '$6 ~ /^D/ || $6 == "STAT"'
PID PPID F MWCHAN TT STAT TIME COMMAND
2 0 204 - ?? DL 0:03.20 [g_event]
3 0 204 - ?? DL 0:29.32 [g_up]
4 0 204 - ?? DL 0:40.29 [g_down]
5 0 204 - ?? DL 0:00.00 [thread taskq]
6 0 204 - ?? DL 0:00.00 [kqueue taskq]
7 0 204 - ?? DL 0:00.00 [acpi_task0]
8 0 204 - ?? DL 0:00.00 [acpi_task1]
9 0 204 - ?? DL 0:00.00 [acpi_task2]
10 0 204 ktrace ?? DL 0:00.00 [ktrace]
15 0 204 - ?? DL 0:03.29 [yarrow]
25 0 204 psleep ?? DL 0:13.55 [pagedaemon]
26 0 204 psleep ?? DL 0:00.00 [vmdaemon]
27 0 20c pgzero ?? DL 0:53.21 [pagezero]
28 0 204 psleep ?? DL 0:00.81 [bufdaemon]
29 0 204 vlruwt ?? DL 0:03.90 [vnlru]
30 0 204 syncer ?? DL 0:59.74 [syncer]
31 0 204 sdflus ?? DL 0:02.90 [softdepflush]
36 0 204 - ?? DL 0:26.21 [schedcpu]
8803 8724 4002 biord p6 D+ 0:10.28 cvsup -L 1 -g /root/src
So, where are the 28 blocked processes? And its climbing ... I have a
'vmstat 5' running right now, and its up to 30, but same process listing
(minus the cvsup this time) ... leakage somewhere? Is there any way to
debug this?
----
Marc G. Fournier Hub.Org Networking Services (http://www.hub.org)
Email . scrappy@hub.org MSN . scrappy@hub.org
Yahoo . yscrappy Skype: hub.org ICQ . 7615664
Marc G. Fournier
2006-Jun-26 11:53 UTC
leaking blocked processes in vmstat ... how to debug?
Up to 48 right now, and still nothing to show for it ... On Mon, 26 Jun 2006, Marc G. Fournier wrote:> > k, this is getting ridiculous ... I'm going to upgrade my kernel to something > a bit newer then May 25th, which may (or may not) fix it, but: > > 0 28 0 8015508 175352 53 3 4 2 584 0 90 0 471 2299 1210 6 8 > 86 > 0 28 0 8016704 174416 82 0 0 0 77 0 36 0 350 2191 1155 8 6 > 86 > 1 28 0 8016772 167640 84 1 7 0 71 0 63 0 455 3119 1299 31 8 > 61 > 0 28 0 8014456 166416 95 0 1 0 123 0 50 0 480 3463 1733 19 8 > 73 > > 28 blocked processes, according to the above, but according to ps, this is > all that is blocked, and the system ones seem to be the exact same ones > blocked on another system with only '6 blocked', and another with only '3 > blocked', so I'm guessing those ones *aren't* counted in vmstat: > > # ps ax -O ppid,flags,mwchan | awk '$6 ~ /^D/ || $6 == "STAT"' > PID PPID F MWCHAN TT STAT TIME COMMAND > 2 0 204 - ?? DL 0:03.20 [g_event] > 3 0 204 - ?? DL 0:29.32 [g_up] > 4 0 204 - ?? DL 0:40.29 [g_down] > 5 0 204 - ?? DL 0:00.00 [thread taskq] > 6 0 204 - ?? DL 0:00.00 [kqueue taskq] > 7 0 204 - ?? DL 0:00.00 [acpi_task0] > 8 0 204 - ?? DL 0:00.00 [acpi_task1] > 9 0 204 - ?? DL 0:00.00 [acpi_task2] > 10 0 204 ktrace ?? DL 0:00.00 [ktrace] > 15 0 204 - ?? DL 0:03.29 [yarrow] > 25 0 204 psleep ?? DL 0:13.55 [pagedaemon] > 26 0 204 psleep ?? DL 0:00.00 [vmdaemon] > 27 0 20c pgzero ?? DL 0:53.21 [pagezero] > 28 0 204 psleep ?? DL 0:00.81 [bufdaemon] > 29 0 204 vlruwt ?? DL 0:03.90 [vnlru] > 30 0 204 syncer ?? DL 0:59.74 [syncer] > 31 0 204 sdflus ?? DL 0:02.90 [softdepflush] > 36 0 204 - ?? DL 0:26.21 [schedcpu] > 8803 8724 4002 biord p6 D+ 0:10.28 cvsup -L 1 -g /root/src > > So, where are the 28 blocked processes? And its climbing ... I have a > 'vmstat 5' running right now, and its up to 30, but same process listing > (minus the cvsup this time) ... leakage somewhere? Is there any way to debug > this? > > ---- > Marc G. Fournier Hub.Org Networking Services (http://www.hub.org) > Email . scrappy@hub.org MSN . scrappy@hub.org > Yahoo . yscrappy Skype: hub.org ICQ . 7615664 >---- Marc G. Fournier Hub.Org Networking Services (http://www.hub.org) Email . scrappy@hub.org MSN . scrappy@hub.org Yahoo . yscrappy Skype: hub.org ICQ . 7615664