[CentOS] Crontab not working....

[Ian mu]

Hiya, thanks for that Wil, gives me some ideas. I notice the Bad file
descriptor error in there, I've pasted the part there it starts to run it
below (I'm only using touch as a basic test as other cron entries don't
work, touch outside of cron works fine). I'm a bit clueless looking at the
rest really though, is it definitely the bad file descriptor thats causing
it, and any ideas why as its fine outside of cron?

read(6, "03 11 * * * /bin/touch /home/log"..., 4096) = 47
lseek(6, 47, SEEK_SET)                  = 47
read(6, "", 4096)                       = 0
read(6, "", 4096)                       = 0
close(6)                                = 0
munmap(0x2a9556c000, 4096)              = 0
close(6)                                = -1 EBADF (Bad file descriptor)
getdents64(5, /* 0 entries */, 4096)    = 0
close(5)                                = 0
time(NULL)                              = 1159179661
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGCHLD, NULL, {0x552aaad780, [], SA_RESTORER|SA_RESTART,
0x2a959b7410}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
nanosleep({60, 0},  <unfinished ...>



On 9/25/06, Will McDonald <wmcdonald at gmail.com> wrote:
>
> On 25/09/06, Ian mu <mu.llamas at gmail.com> wrote:
> > Hiya all,
> >
> >  just found an odd one on one of our boxes, cron isnt working (for a
> user
> > anyway, but can't seem to get it running properly at all), i.e if I do a
> > crontab -e as a user (who is in /var/spool/cron) and add 19 10 * * *
> > /bin/touch /home/logadmin/testfile (has permission) its never created.
> Also
> > I get no mails from cron to /var/spool/mail/root so guessing maybe cron
> not
> > working at all, can't find any errors in logfiles relating to it either.
> >
> > ps -ef shows crond running however, have tried restarting it via service
> > crond restart which shows fine in logs as started
> >
> > Not sure what else to check?
>
> Is there an entry in /etc/cron.deny for the user? Does
> /var/spool/cron/logadmin look OK?
>
> You could try attaching strace to the running crond process with -f to
> see if that provides any insights.
>
> Will.
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