I recently got the problem that my smbd process takes up a lot of CPU (about
60%). It's running this high even if I don't access the server through my
samba clients. I have tried restarting samba, rebooting the computer and I
have been looking at several logs but I can't see what's wrong. It never
seems to relax. I need to fix this as fast as possible because my CPU fan is
running so high I can't even think.
This is an extract from top:
[EMAIL PROTECTED] /]# top
PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND
13320 root 16 0 190m 181m 2400 R 77.2 36.1 43:36.14 smbd
This is the result from running strace for about five seconds:
[EMAIL PROTECTED] /]# strace -p 13320 -cfqrT
% time seconds usecs/call callserrors syscall
-- --- --- - -
75.610.085973 6 13814 1740 stat64
9.710.011036 7 1560 select
5.660.006436 4 1561 write
4.300.004889 6 847 open
1.930.002193 1 1774 getdents64
1.520.001728 1 3120 read
1.100.001249 1 2231 fcntl64
0.090.000107 0 847 close
0.090.98 0 847 fstat64
0.000.00 0 8 time
0.000.00 0 6 lseek
0.000.00 0 1560 gettimeofday
0.000.00 025 mremap
-- --- --- - -
100.000.113709 28200 1740 total
Here's an extract from strace -p 13320 -f. I don't understand anything from
it.
gettimeofday({1145270319, 463254}, NULL) = 0
stat64("proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/self/task/133
20/cwd/proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/self/task/1332
0/cwd/proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/2/root/proc/6/c
wd/proc/13123/fd", {st_mode=S_IFDIR|0500, st_size=0, ...}) = 0
fcntl64(13, F_SETLKW64, {type=F_WRLCK, whence=SEEK_SET, start=672, len=1},
0xbfec6344) = 0
fcntl64(13, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=672, len=1},
0xbfec6284) = 0
write(23, "\0\0\0d\377SMB2\0\0\0\0\210A\310\0\0\0\0\0\0\0\0\0\0\0"..., 104)
= 104
select(24, [5 23], NULL, NULL, {60, 0}) = 1 (in [23], left {60, 0})
read(23, "\0\0\0020", 4)= 4
read(23, "\377SMB2\0\0\0\0\30\7\310\0\0\0\0\0\0\0\0\0\0\0\0\2\0\204"...,
560) = 560
gettimeofday({1145270319, 495271}, NULL) = 0
stat64("proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/self/task/133
20/cwd/proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/self/task/1332
0/cwd/proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/2/root/proc/6/c
wd/proc/13123/fd", {st_mode=S_IFDIR|0500, st_size=0, ...}) = 0
stat64("proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/self/task/133
20/cwd/proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/self/task/1332
0/cwd/proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/2/root/proc/6/c
wd/proc/13123/fd/*", 0xbfec57d0) = -1 ENOENT (No such file or directory)
stat64("proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/self/task/133
20/cwd/proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/self/task/1332
0/cwd/proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/2/root/proc/6/c
wd/proc/13123/fd/*", 0xbfec57d0) = -1 ENOENT (No such file or directory)
open("proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/self/task/13320
/cwd/proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/self/task/13320/
cwd/proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/2/root/proc/6/cwd
/proc/13123/fd", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY) = 24
fstat64(24, {st_mode=S_IFDIR|0500, st_size=0, ...}) = 0
fcntl64(24, F_SETFD, FD_CLOEXEC)= 0
stat64("proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/self/task/133
20/cwd/proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/self/task/1332
0/cwd/proc/self/task/13320/cwd/proc/self/task/13320/cwd/proc/2/root/proc/6/c
wd/proc/13123/fd/.", {st_mode=S_IFDIR|0500, st_size=0, ...}) = 0
The samba logs doesn't tell me anything and neither does /var/log/messages.
What is going on?
The computer is a ~2GHz Intel, 512MB ram, Fedora Core 5.
Kim Lindberg
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