crashes

crashes

Post by Artur Grabowsk » Wed, 19 Jan 2000 04:00:00




> Just installed 2.6 on a 486SX-66 with 8MB ram.  It crashes too with the
> same kind of errors as when I was running it on 386DX-25:

> vm_fault(0xe0b78f00, dead0000, 3, 0) -> 5
> kernel: page fault trap, code=0
> Stopped at      _vm_page_insert+0x94:   movl  %ebx,0(%eax)

This message only says that some random memory was corrupted (for unknown)
reasons. This could be a hardware error och bug in a kernel driver or
bug in the memory handling or anything.

Try typing "trace" next time you are thrown out to the "ddb>" prompt so that
we get more info on this crash.

//art

 
 
 

crashes

Post by aladrin faeh » Thu, 20 Jan 2000 04:00:00


Just installed 2.6 on a 486SX-66 with 8MB ram.  It crashes too with the
same kind of errors as when I was running it on 386DX-25:

vm_fault(0xe0b78f00, dead0000, 3, 0) -> 5
kernel: page fault trap, code=0
Stopped at      _vm_page_insert+0x94:   movl  %ebx,0(%eax)

Anyone else suffering frequent crashes running this on low end machines?
Will I have to buy a kickarse pentium or tons of ram to avoid the crashes?

I'll try upgrading to 16MB ram and see what happens.

This is starting to make me depressed.

 
 
 

crashes

Post by aladrin faeh » Thu, 20 Jan 2000 04:00:00


Quote:> Try typing "trace" next time you are thrown out to the "ddb>" prompt so that
> we get more info on this crash.

i did...

vm_fault(0xe0b78f00, dead0000, 3, 0) -> 5
kernel: page fault trap, code=0
Stopped at      _vm_page_insert+0x94:    movl    %ebx,0(%eax)
ddb> trace
_vm_page_insert(e055e470,e0b76200,1a000,e021e68c,e055e470) at
_vm_page_insert+0x94
_vm_page_rename(e055e470,e0b76200,1a000,1) at _vm_page_rename+0x29
_vm_object_overlay(e0b76200,20,e0a96e00,ffffffff,e0b76200) at
_vm_object_overlay+0x15b
_vm_object_collapse_internal(e0b76200,e2ae3e78,e022ce85) at
_vm_object_collapse_internal+0x82
_vm_object_deallocate(0,e0b66a00,e0b62600,79000) at _vm_object_deallocate+0x4f
_vm_map_delete(e0b78f00,0,dfbfe000,e0b78800,e0b78f00) at _vm_map_delete+0x127
_vm_map_remove(e0b78f00,0,dfbfe000,e2ae3f38) at _vm_map_remove+0x65
_exit1(e0b78800,0,4776c,5,e0b6e500) at _exit1+0x104
_sys_exit(e0b78800,e2ae3f88,e2ae3f80,e022ebd8,0) at _sys_exit+0x1a
_syscall() at _syscall+0x242
--- syscall (number 1) ---

 
 
 

crashes

Post by aladrin faeh » Thu, 20 Jan 2000 04:00:00


I've reinstalled again, this time with 64M swap instead of 32M.
Definitely seems faster so far and my fingers are crossed that it won't
crash again.  Un*x should not crash so easily IMHO, even with 8M of ram.
I guess that's the risk when using obsolete hardware.

Also someone who had a similar problem with a 486DX/8M has emailed me
telling me about a patch that seems to fix it "the poll(2) patch".  I'll
give that a try next :)

 
 
 

crashes

Post by t_ko.. » Wed, 16 Feb 2000 04:00:00


I've been having a similar problem with my new install on a 50 MHz 486DX
with 8M of RAM.  On my machine, however, the problem seems intermittent
but often appears when I'm prompted for a terminal type just after login
as root.  When I enter a selection, be it the default or otherwise, it
crashes and kicks me into the ddb> prompt.  It has also done this at
some point during the night when I had sucessfully logged in and left
the machine running overnight so it must have been trigger by some cron
activity.

One big question I have: how did you get the output of that trace
command to a file?  I have run it and it gives me a sceenful so I don't
feel inclined to retype it into this posting.  Any help would be
appreciated.  At this point I think I'll pull all of the memory and
other cards and give the machine a good vacumming inside to hopefully
remove some of the dust as it has been sitting idle for some years.

Thanks in advance.
Tom



Quote:> > Try typing "trace" next time you are thrown out to the "ddb>" prompt
so that
> > we get more info on this crash.

> i did...

> vm_fault(0xe0b78f00, dead0000, 3, 0) -> 5
> kernel: page fault trap, code=0
> Stopped at      _vm_page_insert+0x94:    movl    %ebx,0(%eax)
> ddb> trace
> _vm_page_insert(e055e470,e0b76200,1a000,e021e68c,e055e470) at
> _vm_page_insert+0x94
> _vm_page_rename(e055e470,e0b76200,1a000,1) at _vm_page_rename+0x29
> _vm_object_overlay(e0b76200,20,e0a96e00,ffffffff,e0b76200) at
> _vm_object_overlay+0x15b
> _vm_object_collapse_internal(e0b76200,e2ae3e78,e022ce85) at
> _vm_object_collapse_internal+0x82
> _vm_object_deallocate(0,e0b66a00,e0b62600,79000) at

_vm_object_deallocate+0x4f
Quote:> _vm_map_delete(e0b78f00,0,dfbfe000,e0b78800,e0b78f00) at

_vm_map_delete+0x127

Quote:> _vm_map_remove(e0b78f00,0,dfbfe000,e2ae3f38) at _vm_map_remove+0x65
> _exit1(e0b78800,0,4776c,5,e0b6e500) at _exit1+0x104
> _sys_exit(e0b78800,e2ae3f88,e2ae3f80,e022ebd8,0) at _sys_exit+0x1a
> _syscall() at _syscall+0x242
> --- syscall (number 1) ---

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