Date: Fri, 23 Jan 2009 18:26:34 GMT From: vermaden <vermaden@interia.pl> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/130920: cp(1) takes 100% CPU time while copying file from harddisk to pendrive Message-ID: <200901231826.n0NIQYkw041687@www.freebsd.org> Resent-Message-ID: <200901231830.n0NIU1i4052558@freefall.freebsd.org>
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>Number: 130920
>Category: i386
>Synopsis: cp(1) takes 100% CPU time while copying file from harddisk to pendrive
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Jan 23 18:30:00 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator: vermaden
>Release: 7.1-RELEASE
>Organization:
>Environment:
FreeBSD mavio 7.1-RELEASE FreeBSD 7.1-RELEASE #0: Thu Jan 1 14:37:25 UTC 2009 root@logan.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386
>Description:
cp(1) takes 100% CPU time while copying file from harddisk to pendrive.
% mount | sort
/dev/ad5s1a on / (ufs, local, noatime)
/dev/ad5s1d on /var (ufs, local, noatime, soft-updates)
/dev/ad5s1e on /usr (ufs, local, noatime, soft-updates)
/dev/ad5s3 on /storage (msdosfs, local)
/dev/da0s1 on /mnt/pendrive (msdosfs, local)
/dev/md0 on /tmp (ufs, local)
devfs on /dev (devfs, local)
File was coppied from /storage/... to /mnt/pendrive (about 700mb file).
stats whiel using cp(1):
% gstat
dT: 1.019s w: 1.000s
L(q) ops/s r/s kBps ms/r w/s kBps ms/w %busy Name
0 81 81 3723 1.9 0 0 0.0 15.3| ad5
0 0 0 0 0.0 0 0 0.0 0.0| acd0
0 0 0 0 0.0 0 0 0.0 0.0| ad5s1
0 0 0 0 0.0 0 0 0.0 0.0| ad5s2
0 81 81 3723 4.2 0 0 0.0 33.6| ad5s3
0 0 0 0 0.0 0 0 0.0 0.0| ad5s1a
0 0 0 0 0.0 0 0 0.0 0.0| ad5s1b
0 0 0 0 0.0 0 0 0.0 0.0| ad5s1c
0 0 0 0 0.0 0 0 0.0 0.0| ad5s1d
0 0 0 0 0.0 0 0 0.0 0.0| ad5s1e
0 0 0 0 0.0 0 0 0.0 0.0| acd0t01
0 0 0 0 0.0 0 0 0.0 0.0| iso9660/ISO_vmx
15 68 0 0 0.0 68 4335 172.9 103.4| da0
0 0 0 0 0.0 0 0 0.0 0.0| md0
16 67 0 0 0.0 67 4272 171.7 101.5| da0s1
% top -P
last pid: 19387; load averages: 1.34, 0.47, 0.22 up 1+04:51:21 18:54:05
46 processes: 3 running, 43 sleeping
CPU 0: 0.0% user, 2.2% nice, 33.9% system, 36.1% interrupt, 27.8% idle
CPU 1: 0.0% user, 2.2% nice, 52.9% system, 21.1% interrupt, 23.8% idle
Mem: 295M Active, 1406M Inact, 172M Wired, 77M Cache, 112M Buf, 3652K Free
Swap: 1024M Total, 96K Used, 1024M Free
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
19246 vermaden 1 -8 5 3128K 768K RUN 0 0:38 66.46% cp
758 vermaden 1 44 5 307M 78772K select 0 58:33 1.27% Xorg
1828 vermaden 2 44 15 44488K 25856K CPU1 1 121:31 0.88% transmission
630 root 1 44 0 8416K 3400K select 0 8:32 0.00% mpd
766 vermaden 1 44 5 7284K 3980K select 1 4:31 0.00% conky
881 vermaden 1 44 5 6384K 3584K select 0 3:00 0.00% ekg
595 root 1 44 0 3184K 872K select 1 2:17 0.00% powerd
1827 vermaden 1 44 5 5252K 2492K select 0 1:43 0.00% ncmpc
629 root 1 44 0 8416K 2884K select 0 1:21 0.00% mpd
764 vermaden 1 44 5 12004K 7332K select 0 0:17 0.00% fluxbox
625 root 1 44 0 8416K 1932K select 1 0:13 0.00% mpd
897 vermaden 2 63 5 261M 200M ucond 1 0:11 0.00% opera
703 root 1 44 0 3268K 872K select 1 0:10 0.00% moused
799 vermaden 1 44 5 4560K 2700K select 0 0:09 0.00% screen
674 root 1 44 0 5752K 2256K select 0 0:06 0.00% sshd
880 vermaden 1 44 5 4236K 1128K select 1 0:01 0.00% luit
19133 vermaden 1 44 5 17516K 9468K select 0 0:01 0.00% urxvt
19235 vermaden 1 20 5 5760K 4372K pause 1 0:01 0.00% zsh
16662 vermaden 1 5 5 6124K 4492K ttyin 1 0:01 0.00% zsh
504 root 1 44 0 3184K 1036K select 1 0:01 0.00% syslogd
19140 vermaden 1 20 5 5652K 4144K pause 1 0:00 0.00% zsh
681 root 1 8 0 3212K 1040K nanslp 1 0:00 0.00% cron
871 vermaden 1 5 5 5052K 3376K ttyin 1 0:00 0.00% zsh
19378 vermaden 1 20 5 5144K 3720K pause 0 0:00 0.00% zsh
749 vermaden 1 5 0 4992K 3316K ttyin 1 0:00 0.00% zsh
19368 vermaden 1 20 5 5072K 3668K pause 1 0:00 0.00% zsh
>How-To-Repeat:
cp a file to pendrive ...
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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