Subject: Re: ufs disk full panic
To: Bruce J.A. Nourish <bjan+current-users@bjan.net>
From: None <netbsd@purk.ee>
List: current-users
Date: 11/26/2003 17:50:13
Hi,

I saw similar "uvm_faults" in -current when buildin Perl on machine with 128MB
RAM.

Greetings


Tsiteerin "Bruce J.A. Nourish" <bjan+current-users@bjan.net>:

> Hey everyone,
> 
> Last night, I was running ZF from a few days ago. I had just killed
> X due to some problems with xscreensaver + Xinerama (screensavers
> running wild). I entered mutt on a tty, and then the screen filled
> up with errors about / bieng full. I suspended mutt and ran 
> "du -sh /*". Next thing, I was in the kernel debugger. This
> is a transcript of what I saw, written by hand:
> 
> uvm_fault(0x41d77c0,0,0,1) -> 0xe
> kernel: page fault trap, code = 0
> stopped in pid 586.1 (du) at netbsd:ufs_strategy+0x56: movl 0xc(%eax), %eax
> 
> The backtrace yielded the following functions, in order:
> ufs_strategy, bread, ffs_read, VOP_READ, ufs_readdir, VOP_READDIR,
> vn_readdir, sys_getdents, syscall_plain.
> 
> After booting into single user mode, I found the cause of the disk
> full errors: about 1G of XFree86 log file, containing thousands of
> lines of: 
> 
> _XSERVTransSocketUNIXAccept: accept() failed
> 
> Everything else seems fine.
> 
> I'm not sure if this is useful to anybody, as it's fairly obvious what
> the immediate problem was. Still, I don't know if the kernel should
> panic on a disk full error.
> -- 
> Bruce J.A. Nourish <bjan+public@bjan.net> http://bjan.net
> 




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