Date: Mon, 26 Jun 2006 12:44:17 -0300 (ADT) From: "Marc G. Fournier" <scrappy@hub.org> To: freebsd-stable@freebsd.org Subject: Re: What denotes a 'blocked' process? Message-ID: <20060626124226.Y1114@ganymede.hub.org> In-Reply-To: <20060626120842.Q1114@ganymede.hub.org> References: <20060626120842.Q1114@ganymede.hub.org>
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On Mon, 26 Jun 2006, Marc G. Fournier wrote:
>
> Just upgraded to June 15th sources, started up all the processes, and am
> already at 29 blocked processes ...
>
> I've checked for states D, E and L ... nothing ...
>
> Actually, let's go one better ... attached is a complete list of my process
> table (MWCHAN, STATE, COMMAND) ... right now, vmstat is showing:
>
> 1 33 0 6381952 177944 1695 0 0 0 1601 0 1 0 416 50012 1657 14
> 14 72
> 1 33 2 6376440 181744 2013 0 0 0 2172 0 3 0 448 68528 1629 17
> 15 68
> 4 33 0 6385484 178364 1944 0 3 0 1758 0 8 0 420 57698 1221 17
> 14 69
> 23 46 0 6463664 149528 5294 29 4 2 4659 0 37 0 505 44758 3040 27
> 28 45
> 4 34 1 6424904 169660 4216 16 7 0 4047 0 211 0 1002 47502 5769 42
> 30 28
> 1 35 0 6453992 167388 2414 0 9 0 2265 0 44 0 535 62932 3160 18
> 18 64
> 7 33 0 6443672 168100 1642 0 0 0 1652 0 5 0 448 51974 2163 15
> 15 70
>
> So, according to this, there should be 33 processes blocked somewhere ...
> STATEs D/E/L all show nothing ... even state R (long shot) is showing 3-4
> processes, and that's it ...
>
> This kernel is actually worse then the last, in that the last, on a reboot,
> I'd see 4-5 blocked, and then it would slowly rise over the course of 24
> hours, not start at 33 and rise from there ...
Wow, in less then 1 hour, I'm up to 60 blocked, barely 1 runnable:
0 60 0 7016076 187424 2527 0 0 0 1722 0 5 0 320 7921 2140 24 19 57
0 60 0 7027436 185124 581 0 1 0 428 0 9 0 303 3214 2425 5 9 86
0 60 0 7053368 183060 217 4 1 0 130 0 71 0 453 1748 1157 6 4 90
1 60 1 7050848 183556 4 0 0 7 27 0 21 0 307 965 857 1 4 94
0 60 2 7050860 183652 2 0 0 0 6 0 0 0 256 829 1030 2 3 95
0 60 0 7051028 183348 28 1 2 0 11 0 3 0 307 944 855 3 3 95
0 60 1 7056876 182248 136 0 0 0 66 0 8 0 285 1190 945 1 4 95
And nadda in ps:
pluto# ps ax -O ppid,flags,mwchan | awk '$6 ~ /^D/ || $6 == "STAT"' ; ps aux | wc -l
PID PPID F MWCHAN TT STAT TIME COMMAND
2 0 204 - ?? DL 0:00.45 [g_event]
3 0 204 - ?? DL 0:04.87 [g_up]
4 0 204 - ?? DL 0:06.19 [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 0:00.68 [yarrow]
25 0 204 psleep ?? DL 0:00.70 [pagedaemon]
26 0 204 psleep ?? DL 0:00.00 [vmdaemon]
27 0 20c pgzero ?? DL 0:14.43 [pagezero]
28 0 204 psleep ?? DL 0:00.14 [bufdaemon]
29 0 204 vlruwt ?? DL 0:00.15 [vnlru]
30 0 204 syncer ?? DL 0:10.29 [syncer]
31 0 204 sdflus ?? DL 0:00.68 [softdepflush]
32 0 204 - ?? DL 0:03.28 [schedcpu]
1170
pluto# ps ax -O ppid,flags,mwchan | awk '$6 ~ /^E/ || $6 == "STAT"' ; ps aux | wc -l
PID PPID F MWCHAN TT STAT TIME COMMAND
1174
pluto# ps ax -O ppid,flags,mwchan | awk '$6 ~ /^L/ || $6 == "STAT"' ; ps aux | wc -l
PID PPID F MWCHAN TT STAT TIME COMMAND
12 0 20c Giant ?? LL 0:08.16 [swi4: clock]
1170
pluto#
Something *has* to be leaking here somewhere ... :(
----
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
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