Re: [Xen-users] Credit Scheduler!

[Emmanuel Ackaouy <ack@xxxxxxxxxxxxx>]

That's not a known issue. I'll take a look.

Is this easily reproduceable?
What changeset are you building?
What exact sequence of "xm sched-credit" commands are you
running to reproduce this?

On Fri, Jun 30, 2006 at 09:49:57AM -0500, Hardeep Singh wrote:
>    Hi,
> 
>    Thanks a lot with regards to my previous postings. I did a line to line
>    comparison of the .config of the xen3.0 and xen-unstable and found the
>    appropriate disk driver required and managed to boot xen-unstable!
> 
>    However, I need to run the credit scheduler. I am running xen-unstable on
>    ubuntu distribution on a 64bit architecture. Now when I issue xen the
>    following command I get an error as shown below. Can anyone provide any
>    pointers on how to fix this or whether there are any patches.
> 
>    root@pippin:/home/hardeep# xm sched-credit -d vm1 -w 10
> 
>    (XEN) BUG at sched_credit.c:757
>    (XEN) ----[ Xen-3.0-unstable    Not tainted ]----
>    (XEN) CPU:    0
>    (XEN) EIP:    e008:[<ff10fc00>] csched_tick+0x420/0x5a0
>    (XEN) EFLAGS: 00010096   CONTEXT: hypervisor
>    (XEN) eax: 00000000   ebx: 00000000   ecx: 0000000a   edx: 00000000
>    (XEN) esi: ff192080   edi: ff192e08   ebp: ff1646e1   esp: ff19df04
>    (XEN) cr0: 8005003b   cr3: 3e919000
>    (XEN) ds: e010   es: e010   fs: 0000   gs: 0000   ss: e010   cs: e008
>    (XEN) Xen stack trace from esp=ff19df04:
>    (XEN)    ff16419f ff1646e1 000002f5 ff12517b 00000000 ffffffff 00000246
>    ff192e00
>    (XEN)    0000001e 0000000a 00000000 00000000 00000000 ff1a5144 0000000a
>    00000000
>    (XEN)    ff192080 ff19dfb4 00000075 ff111ef2 00000000 00000005 00000002
>    ff1a6200
>    (XEN)    ff1a6200 ffbfed80 41438ac2 ff1140f6 00000000 cd123ee8 00000001
>    ff125317
>    (XEN)    ff17e080 00000000 ff1a7780 00000000 00007ff0 cee6f200 c058b030
>    ff112f12
>    (XEN)    00007ff0 cee6f200 ff192080 ff1535d6 cd123edc 00000001 00000000
>    00007ff0
>    (XEN)    cee6f200 c058b030 00000000 000e0004 c0101347 00000061 00000246
>    cd123ed8
>    (XEN)    00000069 0000007b 0000007b 00000000 00000000 00000000 ff192080
>    (XEN) Xen call trace:
>    (XEN)    [<ff10fc00>] csched_tick+0x420/0x5a0
>    (XEN)    [<ff12517b>] process_deferred_ops+0x9b/0x160
>    (XEN)    [<ff111ef2>] t_timer_fn+0x72/0xc0
>    (XEN)    [<ff1140f6>] timer_softirq_action+0xc6/0x120
>    (XEN)    [<ff125317>] do_update_va_mapping+0xd7/0x390
>    (XEN)    [<ff112f12>] do_softirq+0x32/0x50
>    (XEN)    [<ff1535d6>] process_softirqs+0x6/0x10
>    (XEN)   
>    (XEN) ************************************
>    (XEN) CPU0 FATAL TRAP 6 (invalid opcode), ERROR_CODE 0000, IN INTERRUPT
>    CONTEXT.
>    (XEN) System shutting down -- need manual reset.
>    (XEN) ************************************
> 
>    Regards,
>    Hardeep Singh

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