crontab hanging won't die on SIGTERM in jail

[Michael Scheidell]

anyone having problems during an in jail shutdown with crontab hanging?
I have seen this in 6.4 and 7.1, on i386 and amd64.
I don't remember problems with 6.3


using jailtools (jkill -r), OR
shutdown -r +0

OR

 reboot
reboot: SIGTSTP init: No such process

truss shows:
truss -p 87553
(null)()                                         = 0 (0x0)
gettimeofday({1249567500.835698},0x0)            = 0 (0x0)
stat("tabs",{mode=drwx------ ,inode=10458278,size=512,blksize=4096}) = 0 
(0x0)
stat("/etc/crontab",{mode=-rw-r--r-- 
,inode=10461256,size=748,blksize=4096}) = 0 (0x0)
gettimeofday({1249567500.836244},0x0)            = 0 (0x0)
fork()                                           = 88217 (0x15899)
gettimeofday({1249567500.836862},0x0)            = 0 (0x0)
nanosleep({60.000000000})                        ERR#4 'Interrupted 
system call'
SIGNAL 20 (SIGCHLD)
SIGNAL 20 (SIGCHLD)
wait4(0xffffffff,0xbfbfe99c,0x1,0x0)             = 88217 (0x15899)
wait4(0xffffffff,0xbfbfe99c,0x1,0x0)             ERR#10 'No child processes'
sigreturn(0xbfbfe9d0)                            ERR#4 'Interrupted 
system call'
gettimeofday({1249567500.842115},0x0)            = 0 (0x0)


 killall -SIGTERM cron

(caused NO truss activity)

it sees a HUP:

killall -SIGHUP  cron

truss:
SIGNAL 1 (SIGHUP)
(null)()                                         ERR#4 'Interrupted 
system call'
gettimeofday({17.000000},0x0)                    = 0 (0x0)
(null)()                                         = 0 (0x0)


SIGKILL will kill it.


-- 
Michael Scheidell, CTO
Phone: 561-999-5000, x 1259
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