[Xen-bugs] [Bug 543] domU: BUG: soft lockup detected on CPU#1!

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=543





------- Additional Comments From dbarrera@xxxxxxxxxx  2006-03-23 16:18 -------
Saw the problem again while running LTP (ltp-full-20050804). 

BUG: soft lockup detected on CPU#1!

Pid: 7604, comm:       gettimeofday02
EIP: 0061:[<c0105014>] CPU: 1
EIP is at system_call+0x14/0x32
 EFLAGS: 00000292    Not tainted  (2.6.16-xenU #1)
EAX: 0000004e EBX: bff7de88 ECX: 00000000 EDX: 0000007b
ESI: b7f822e0 EDI: bff7dee4 EBP: bff7de98 DS: 007b ES: 007b
CR0: 8005003b CR2: bfebf000 CR3: 0ac3a000 CR4: 00000660
 [<c01054c1>] show_trace+0x21/0x30
 [<c0102fbf>] show_regs+0x1bf/0x1ec
 [<c013f861>] softlockup_tick+0x81/0x90
 [<c0129a65>] do_timer+0x45/0xe0
 [<c0108fd7>] timer_interrupt+0x1e7/0x640
 [<c013fb6c>] handle_IRQ_event+0x5c/0xc0
 [<c013fc59>] __do_IRQ+0x89/0x100
 [<c0106c00>] do_IRQ+0x20/0x30
 [<c0259c54>] evtchn_do_upcall+0x84/0x110
 [<c01051fc>] hypervisor_callback+0x2c/0x34


x335b:/tmp/xen-unstable.hg/tools/xentrace # ./xenctx -s
/boot/vmlinux-syms-2.6.16-xenU 1 0
eip: c01010c7
esp: c0365f98
eax: 00000000   ebx: 00000001   ecx: 00000000   edx: 000007af
esi: c0364000   edi: 00000001   ebp: c0365fac
 cs: 00000061    ds: 0000007b    fs: 00000000    gs: 00000000


x335b:/tmp/xen-unstable.hg/tools/xentrace # ./xenctx -s
/boot/vmlinux-syms-2.6.16-xenU 1 1
eip: c01010c7
esp: c03c3f84
eax: 00000000   ebx: 00000001   ecx: 00000000   edx: 000006e1
esi: c03c2000   edi: 00000001   ebp: c03c3f98
 cs: 00000061    ds: 0000007b    fs: 00000000    gs: 00000000

x335b:/tmp/xen-unstable.hg/tools/xentrace # ./xenctx -s
/boot/vmlinux-syms-2.6.16-xenU 1 2
eip: c01010c7
esp: c03c5f84
eax: 00000000   ebx: 00000001   ecx: 00000000   edx: 000007a4
esi: c03c4000   edi: 00000001   ebp: c03c5f98
 cs: 00000061    ds: 0000007b    fs: 00000000    gs: 00000000

x335b:/tmp/xen-unstable.hg/tools/xentrace # ./xenctx -s
/boot/vmlinux-syms-2.6.16-xenU 1 3
eip: c01010c7
esp: c03c7f84
eax: 00000000   ebx: 00000001   ecx: 00000000   edx: 000007aa
esi: c03c6000   edi: 00000001   ebp: c03c7f98
 cs: 00000061    ds: 0000007b    fs: 00000000    gs: 00000000


--------
Typically LTP is running on both dom0 and domU at the same time when this
situation happens.


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