Re: [Xen-devel] Latest unstable detects cpu speed incorrectly

[Valtteri Kiviniemi <valtteri.kiviniemi@xxxxxxxxxxxx>]

Hi,

Compared to "nothing", just started to crash. Sometimes they boot and 
sometimes they dont. I did a full reboot for the server and now they are 
all working again without cpu spiking. The server was up only couple of 
days before this started, so I think that its going to start crashin in 
48 hours or so.
The problem is both tsc native and emulated. If the domUs wont crash, 
they just start to using 400-800% cpu when just idling.
dmesg on Domain-0 is also flooding this:

"Attempting to checksum a non-TCP/UDP packet, dropping a protocol 1 packet"

- Valtteri Kiviniemi

Jeremy Fitzhardinge kirjoitti:
> On 10/27/09 09:34, Valtteri Kiviniemi wrote:
> > Hi,
> >
> > Now they are crashing on bootup:
> "Now" compared to what?  Is this still related to tsc_native?
>
>     J
>
> > general protection fault: 0000 [#1] SMP
> > last sysfs file:
> > CPU 0
> > Pid: 1, comm: swapper Not tainted 2.6.31.4-domU-00396-g9cf89da #15
> > RIP: e030:[<ffffffff8119e25f>]  [<ffffffff8119e25f>] strcmp+0x7/0x19
> > RSP: e02b:ffff88001f83be58  EFLAGS: 00010246
> > RAX: 0000000000000073 RBX: ffff88001fa1eb90 RCX: ffff88001fa1eb73
> > RDX: 0000000000000000 RSI: 0000b67d64d2a30e RDI: ffff88001f806900
> > RBP: 0000b67d64d2a30e R08: 0000000000000001 R09: ffffffff813c37c8
> > R10: ffffffff8100e072 R11: 0000000000000000 R12: 0000000000000000
> > R13: ffffffff81402030 R14: ffffffff8143f6a0 R15: 0000000000000000
> > FS:  0000000000000000(0000) GS:ffffc90000000000(0000)
> > knlGS:0000000000000000
> > CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
> > CR2: 0000000000000000 CR3: 0000000001001000 CR4: 0000000000002660
> > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> > Process swapper (pid: 1, threadinfo ffff88001f83a000, task
> > ffff88001f858000)
> > Stack:
> >  ffffffff810c7e84 ffffffff8100e072 ffff88001fa1eb40 0000b67d64d2a30e
> > <0> ffffffff810c6dc5 ffff88001fa1eb40 0000000000000000 0000000000000000
> > <0> 0000000000000000 0000b67d64d2a30e 00000000000274b2 0000000000000000
> > Call Trace:
> >  [<ffffffff810c7e84>] ? sysfs_find_dirent+0x1b/0x2f
> >  [<ffffffff8100e072>] ? check_events+0x12/0x20
> >  [<ffffffff810c6dc5>] ? sysfs_hash_and_remove+0x29/0x59
> >  [<ffffffff8107cecd>] ? sysfs_slab_alias+0x25/0x81
> >  [<ffffffff81431a7d>] ? slab_sysfs_init+0xb6/0xe9
> >  [<ffffffff814319c7>] ? slab_sysfs_init+0x0/0xe9
> >  [<ffffffff8100a051>] ? do_one_initcall+0x50/0x151
> >  [<ffffffff8141fb20>] ? kernel_init+0x14b/0x1a1
> >  [<ffffffff810112aa>] ? child_rip+0xa/0x20
> >  [<ffffffff810104ac>] ? int_ret_from_sys_call+0x7/0x1b
> >  [<ffffffff81010c5d>] ? retint_restore_args+0x5/0x6
> >  [<ffffffff810112a0>] ? child_rip+0x0/0x20
> > Code: f8 eb 10 48 ff c1 49 ff c0 4c 39 c2 75 08 c6 01 00 eb 0d 45 31
> > c0 42 8a 04 06 88 01 84 c0 75 e3 48 89 f8 c3 31 d2 8a 0c 17 88 c8 <2a>
> > 04 16 84 c0 75 07 48 ff c2 84 c9 75 ed 0f be c0 c3 31 c9 eb
> > RIP  [<ffffffff8119e25f>] strcmp+0x7/0x19
> >  RSP <ffff88001f83be58>
> > ---[ end trace a7919e7f17c0a725 ]---
> > Kernel panic - not syncing: Attempted to kill init!
> > Pid: 1, comm: swapper Tainted: G      D   
> > 2.6.31.4-domU-00396-g9cf89da #15
> > Call Trace:
> >  [<ffffffff812b4993>] ? panic+0x86/0x12e
> >  [<ffffffff812b6919>] ? _spin_lock_irq+0x7/0x1c
> >  [<ffffffff811a5e20>] ? dummycon_dummy+0x0/0x3
> >  [<ffffffff811a5e20>] ? dummycon_dummy+0x0/0x3
> >  [<ffffffff8100d9bd>] ? xen_force_evtchn_callback+0x9/0xa
> >  [<ffffffff8100e072>] ? check_events+0x12/0x20
> >  [<ffffffff811a5e20>] ? dummycon_dummy+0x0/0x3
> >  [<ffffffff812b6995>] ? _write_lock_irq+0x7/0x16
> >  [<ffffffff8103b2bd>] ? exit_ptrace+0xa7/0x126
> >  [<ffffffff81036605>] ? do_exit+0x6a/0x5ce
> >  [<ffffffff8100e072>] ? check_events+0x12/0x20
> >  [<ffffffff81013eb1>] ? oops_end+0x8e/0x93
> >  [<ffffffff812b6d45>] ? general_protection+0x25/0x30
> >  [<ffffffff8100e072>] ? check_events+0x12/0x20
> >  [<ffffffff8119e25f>] ? strcmp+0x7/0x19
> >  [<ffffffff810c7e84>] ? sysfs_find_dirent+0x1b/0x2f
> >  [<ffffffff8100e072>] ? check_events+0x12/0x20
> >  [<ffffffff810c6dc5>] ? sysfs_hash_and_remove+0x29/0x59
> >  [<ffffffff8107cecd>] ? sysfs_slab_alias+0x25/0x81
> >  [<ffffffff81431a7d>] ? slab_sysfs_init+0xb6/0xe9
> >  [<ffffffff814319c7>] ? slab_sysfs_init+0x0/0xe9
> >  [<ffffffff8100a051>] ? do_one_initcall+0x50/0x151
> >  [<ffffffff8141fb20>] ? kernel_init+0x14b/0x1a1
> >  [<ffffffff810112aa>] ? child_rip+0xa/0x20
> >  [<ffffffff810104ac>] ? int_ret_from_sys_call+0x7/0x1b
> >  [<ffffffff81010c5d>] ? retint_restore_args+0x5/0x6
> >  [<ffffffff810112a0>] ? child_rip+0x0/0x20
> >
> >
> >
> > - Valtteri Kiviniemi
> >
> > Valtteri Kiviniemi kirjoitti:
> > > Hi,
> > >
> > > It was downloaded and compiled on 2009-10-26 00:48 GMT+2. Kernel
> > > version is 2.6.31.4-dom0-00396-g9cf89da.
> > >
> > > - Valtteri Kiviniemi
> > >
> > > Keir Fraser kirjoitti:
> > > > On 27/10/2009 16:14, "Valtteri Kiviniemi"
> > > > <valtteri.kiviniemi@xxxxxxxxxxxx>
> > > > wrote:
> > > >
> > > > > I'll take that back, now its occuring in every virtual.
> > > > Yes it didn't sound like it would really be TSC related. How
> > > > 'latest' is
> > > > your xen-unstable?
> > > >
> > > >  -- Keir
> > > >
> > > >
> > > >
> > > > _______________________________________________
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