From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pim van Riezen <pi+lists@panelsix.com>
Subject: pvops domu soft lockup under load
Date: Fri, 9 Apr 2010 15:22:37 +0200
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Good day,

I'm getting lots of these from a couple of pvops DomU guests that are =
pretty heavy in their i/o and cpu-load. The issue reproduces on pvops =
2.6.31 and 2.6.32 trees under Xen 3.3 as well as 3.4.1 (in the process =
of trying out 3.4.2 but I'm not holding my breath). Is there anything we =
can do be more helpful towards solving this issue?

 BUG: soft lockup - CPU#0 stuck for 561s! [swapper:0]
 Modules linked in:
 CPU 0:
 Modules linked in:
 Pid: 0, comm: swapper Not tainted 2.6.32.9xls-domU #2=20
 RIP: e030:[<ffffffff810093aa>]  [<ffffffff810093aa>] =
hypercall_page+0x3aa/0x1001
 RSP: e02b:ffffffff81691f70  EFLAGS: 00000246
 RAX: 0000000000000000 RBX: ffffffff81690000 RCX: ffffffff810093aa
 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
 RBP: ffffffff81896d30 R08: 0000000000000000 R09: ffffffff8100e3b2
 R10: 0000000000000001 R11: 0000000000000246 R12: ffffffffffffffff
 R13: ffffffff818ebf20 R14: ffffffff818eec70 R15: 0000000000000000
 FS:  00007f8ac7a9c6e0(0000) GS:ffff8800022ac000(0000) =
knlGS:0000000000000000
 CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
 CR2: 00007f291b4c9000 CR3: 000000007d8c1000 CR4: 0000000000002660
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
 Call Trace:
  [<ffffffff8100ddb7>] ? xen_safe_halt+0xc/0x15
  [<ffffffff8100bdcf>] ? xen_idle+0x37/0x40
  [<ffffffff8100fe2e>] ? cpu_idle+0x4f/0x82
  [<ffffffff818b6c42>] ? start_kernel+0x353/0x35f

Kind regards,
Pim van Riezen