Linux-Hams archive - March 1997: Re: crontab hanging kernel(?) - possible relation to ax25-modules-12

Re: crontab hanging kernel(?) - possible relation to ax25-modules-12

Richard Adams (hya.orwrhkclyl@mikroplan.com.pl)
Tue, 4 Mar 1997 12:17:37 +0000 (GMT)


According to Simon J Mudd, While burning my cpu.:
>
Hello Simon.

Well it maybe off topic, but you do seem to have a point.
I am sending this message to the group to see if others have any idea's, BUT
considering its off topic please email Simon and me directly.

> I've been having a very odd occurence of crontab hanging, after doing
> crontab -e. After this login or su attempts fail trying after typing in
> the username. Init gets stuck in the same way. ps shows that the
> affected processes are in uninterruptable sleep. The only way to fix this
> is to switch the power off. (shutdown or sync get stuck if you type them
> at the command prompt)
>
> I'm running 2.0.29 with the ax25-module-12 kernel patch. As I've not seen
> this particular "bug" reported on the redhat list before I thought maybe
> this is due to the kernel patch I'm using.
>
I have slackware. 3.0

> I'm blaming no-one, but just curious. Has anyone else experienced
> anything similar?
>
Yes, but mine is a different fenomeen. Firstly i normaly edit crontab(s)
with 'joe /var/spool/cron/crontabs/x' and have never seen any funny's.
After reading this mail i decided to use crontab -e and i saw some rather
disturbing things.

1) joe becomes unusable it throws the cursor all over the place.
2) logging out and back in again does'nt cure the problem, so realy i am
left with a virtual console where i cant do much.

I dont see anything strange with 'ps' maybe you could let me know what jobs
you let crontab do so i can see if i also get "uninterrupable(s)".

Considering i did not alter root's crontab, all i did was 'crontab -e root'
then 'esc :wq', it would seem that VI is causing a problem, i back this up
with my next experiment, i alterd root's crontab with joe to do a ping every
hour to the local node, root recevies a conformation mail that ping was
executed, and i have no problems on the virtual console where the crontab
was edited.

After a quick brouwse thro' man elvis i see that elvis looks for ENVIRONMENT
settings ie, termcap, so could this be it? or because VI starts up without
reading .exrc like the man page explans..
I would imagen its more "Pilot error" than the ax25 patches causing the
problem.

> regards,
> Simon J Mudd, EA4ELS / G0FNB +34-1-559 2854 Madrid, Spain
> abng.txmnkwcxwd@mazarsguerard.hu

-- 
Regards Richard, 73.              | "I see" said the blind man to his
AX25  pa3gcu@pi8mid.#zld.nld.eu   |  deaf en dumb daughter, who replyed,
smtp  vetmqe@kerailya.tunkki.fi      | "Yes" Linux AX25. NET/ROM, "I have heard
inet  vcslelq.bokq@carinacorp.com |  that what you see is what you get".