Re: Most programs crash under openmosix.

THis actually makes sense so i will need to try it later. Which
openmosix-user tools are you using?

Thanks for replying.

On Wed, 2006-03-15 at 20:53 +0000, Deadpan110 wrote:
> Hi,
> 
> I also use Gentoo and have tried a few of the openMosix kernels within
> Gentoo portage.
> 
> I am unsure of their current state but have always found them to be
> unstable due to the amount of patches included with them (migshm and
> many others).
> 
> The official openMosix kernel is 2.4.26 and thus, I always build my
> own and ignore the Gentoo ones all together.
> 
> Martin
> 
> 
> 
> On 15/03/06, Gert Burger <[email protected]> wrote:
>         Hi
>         
>         We run a smallish(18 pc) cluster for AI smulations. At least
>         we are
>         trying to.
>         
>         The processes migrate properly but openmosixtest packages and
>         almost all
>         of our simulations crash after only a few seconds with a
>         kernel oops. 
>         Below is the oops.
>         
>         We are running openmosix 2.4.30 and openmosix-user 0.3.6-r3
>         from the
>         gentoo portage.
>         
>         Any ideas anyone?
>         
>         The openmosixtests freeze the machine within 5-10 seconds.
>         
>         Oops from our program: 
>         <1>Unable to handle kernel NULL pointer dereference at virtual
>         address
>         0000004c
>         c0172b9d
>         *pde = 00000000
>         Oops: 0002
>         CPU:    0
>         EIP:    0010:[<c0172b9d>]    Not tainted
>         Using defaults from ksymoops -t elf32-i386 -a i386 
>         EFLAGS: 00010286
>         eax: 00000000   ebx: ce7c4720   ecx: 0805672c   edx: 00000000
>         esi: 08057000   edi: 08057000   ebp: 00000000   esp: cdfe1b2c
>         ds: 0018   es: 0018   ss: 0018
>         Process ls (pid: 1659, stackpage=cdfe1000) 
>         Stack: cdfe1b30 ce7c4660 ce7c4720 00000000 00000009 c017510d
>         08056380
>         0805672c
>         00000380 00000003 00001812 0000000e c041f8f0 fffffffb 00000000
>         00000246
>         c041f8f0 00000246 00000002 000038c0 cf3651bc cf3650e0 000053aa
>         00000380 
>         Call Trace:    [<c017510d>] [<c033336a>] [<c01748c0>]
>         [<c0158624>]
>         [<c015881f>]
>         [<c0105da2>] [<c0109f3b>] [<c01f1aa7>] [<c0105d60>]
>         [<c01f0613>]
>         [<c01f6f5d>] 
>         [<c0109e16>]
>         Code: 89 78 4c 89 78 48 8b 5c 24 08 31 c0 8b 74 24 0c 8b 7c 24
>         10
>         
>         
>         >>EIP; c0172b9d <set_brk+3d/c0>   <=====
>         
>         Trace; c017510d <load_elf_binary+84d/10b0>
>         Trace; c033336a <inet_recvmsg+4a/60> 
>         Trace; c01748c0 <load_elf_binary+0/10b0>
>         Trace; c0158624 <search_binary_handler+154/200>
>         Trace; c015881f <do_execve+14f/330>
>         Trace; c0105da2 <sys_execve+42/80>
>         Trace; c0109f3b <call_with_regs+4b/94> 
>         Trace; c01f1aa7 <deputy_syscall+a7/2b0>
>         Trace; c0105d60 <sys_execve+0/80>
>         Trace; c01f0613 <deputy_main_loop+433/590>
>         Trace; c01f6f5d <mosix_pre_usermode_actions+6d/c0>
>         Trace; c0109e16 <straight_to_mosix+5/d> 
>         
>         Code;  c0172b9d <set_brk+3d/c0>
>         00000000 <_EIP>:
>         Code;  c0172b9d <set_brk+3d/c0>   <=====
>            0:   89 78 4c                  mov    %edi,0x4c(%eax)
>         <=====
>         Code;  c0172ba0 <set_brk+40/c0>
>            3:   89 78 48                  mov    %edi,0x48(%eax)
>         Code;  c0172ba3 <set_brk+43/c0>
>            6:   8b 5c 24 08               mov    0x8(%esp),%ebx
>         Code;  c0172ba7 <set_brk+47/c0>
>            a:   31 c0                     xor    %eax,%eax
>         Code;  c0172ba9 <set_brk+49/c0>
>            c:   8b 74 24 0c               mov    0xc(%esp),%esi
>         Code;  c0172bad <set_brk+4d/c0>
>           10:   8b 7c 24 10               mov    0x10(%esp),%edi
>         
>         
>         
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