[ale] Server crashing - Help!!

[Charles Marcus]

> -----Original Message-----
> From: Keith Hopkins [mailto:hne at inetnow.net]
> Sent: Friday, November 30, 2001 9:41 AM
> To: Charles Marcus
> Cc: Ale (E-mail)
> Subject: Re: [ale] Server crashing - Help!!

> > Nov 29 18:14:42 sfla kdm[15117]: Can't lock pid file \
> > /var/run/xdm-pid, another kdm is running (pid 1556)

> Looks like your lock file is stale (or, there kdm/xdm really
> is already running).  check the output of "ps -ef" to see if
> it really is running, and if it is NOT, then just delete the
> lock file.

Hmmmm.  This is an LTS (Linux Terminal Services) server, which serves about
15 Terminals (all using GUI login mode).  Could this be because the server
itself is booting into run-level 5, so when LTS starts up the X-servers for
the clients, kdm IS already running?

I just went and looked, and process ID 1529 IS being run by root.  I'm not
sure thats the problem though - wouldn't it do the same thing when the
second person started up kdm (simply by turning on their workstation)?  Or
is the process run by root different?

If so, I guess the answer would be to set the server to boot to run-level 3,
but would that affect the workstations ability to boot to run-level 5?

I'm sure I'm showing my ignorance here...

> > Then, here's what happens when the server dies:
> >
> > Nov 29 18:17:06 sfla kernel: fh_verify: ltsroot/dev
> permission failure,
> > acc=3, error=30
> > Nov 29 18:17:06 sfla kernel: fh_verify: ltsroot/dev
> permission failure,
> > acc=3, error=30
> > Nov 29 18:17:06 sfla su(pam_unix)[15378]: session closed
> for user nobody
> > Nov 29 18:18:54 sfla kdm[1556]: Unknown session exit code
> 253 from process
> > 13341
> > Nov 29 18:18:54 sfla su(pam_unix)[15397]: session opened
> for user nobody by
> > (uid=0)
> > Nov 29 18:18:54 sfla kernel: fh_verify: ltsroot/dev
> permission failure,
> > acc=3, error=30
> > Nov 29 18:18:54 sfla kernel: fh_verify: ltsroot/dev
> permission failure,
> > acc=3, error=30
> > Nov 29 18:18:54 sfla su(pam_unix)[15397]: session closed
> for user nobody
> > Nov 29 18:18:56 sfla kdm[1556]: Unknown session exit code
> 253 from process
> > 15408
> > Nov 29 18:18:56 sfla su(pam_unix)[15416]: session opened
> for user nobody by
> > (uid=0)
> > Nov 29 18:18:56 sfla kernel: fh_verify: ltsroot/dev
> permission failure,
> > acc=3, error=30
> > Nov 29 18:18:56 sfla kernel: fh_verify: ltsroot/dev
> permission failure,
> > acc=3, error=30
> > Nov 29 18:18:56 sfla kernel: Unable to handle kernel paging
> request at
> > virtual address 0001000c
> > Nov 29 18:18:56 sfla kernel:  printing eip:
> > Nov 29 18:18:56 sfla kernel: c0113a82
> > Nov 29 18:18:56 sfla kernel: pgd entry dbb4a000: 0000000000000000
> > Nov 29 18:18:56 sfla kernel: pmd entry dbb4a000: 0000000000000000
> > Nov 29 18:18:56 sfla kernel: ... pmd not present!
> > Nov 29 18:18:56 sfla kernel: Oops: 0002
> > Nov 29 18:18:56 sfla kernel: CPU:    0
> > Nov 29 18:18:56 sfla kernel: EIP:    0010:[schedule+194/944]
> > Nov 29 18:18:56 sfla kernel: EIP:    0010:[<c0113a82>]
> > Nov 29 18:18:56 sfla kernel: EFLAGS: 00010096
> > Nov 29 18:18:56 sfla kernel: eax: 00000008   ebx: dbbe0000
>  ecx: dbbe0000
> > edx: 00000009
> > Nov 29 18:18:56 sfla kernel: esi: 00000000   edi: 0000000d
>  ebp: dbbe1fbc
> > esp: dbbe1f9c
> > Nov 29 18:18:56 sfla kernel: ds: 0018   es: 0018   ss: 0018
> > Nov 29 18:18:56 sfla kernel: Process sort (pid: 15424,
> stackpage=dbbe1000)
> > Nov 29 18:18:56 sfla kernel: Stack: 40017000 dbbe0000
> 00000006 dbbe0000
> > c02ad600 dbbe0000 40016734 bffffd8c
> > Nov 29 18:18:56 sfla kernel:        bfffda48 c01090f5
> 4015d700 00000000
> > 400e4654 40016734 bffffd8c bfffda48
> > Nov 29 18:18:56 sfla kernel:        0000e325 0000002b
> 0000002b ffffffff
> > 0804f0e2 00000023 00010286 bfffda2c
> > Nov 29 18:18:56 sfla kernel: Call Trace: [reschedule+5/12]
> > Nov 29 18:18:56 sfla kernel: Call Trace: [<c01090f5>]
> > Nov 29 18:18:56 sfla kernel:
> > Nov 29 18:18:56 sfla kernel: Code: 89 50 04 89 02 c7 43 3c
> 00 00 00 00 8b 55
> > e4 c7 42 14 00 00
> > Nov 29 18:18:56 sfla su(pam_unix)[15416]: session closed
> for user nobody
> >
> > Anyone??  I'd rather not have to fly down to Miami unless I have to.
> >
>
>
> What is running on the server when this happens?  Is it a
> web, mail, file, print, general or whatever kind of server?
> Is this during a shutdown?  What kind of hardware are you
> running?  LVM/MD/*fs ?

The users could be running anything from Netscape, Mozilla or StarOffice
5.2, and all use KDE 2.1.2 for their Desktop GUI.  Server services are
limited to X, LDAP, and LTS (www.ltsp.org).

Thanks for any suggestions...

Charles



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