[Xen-devel] pv_ops - 2.6.24.4: invalid opcode: 0000 [#1] SMP

["Christopher S. Aker" <caker@xxxxxxxxxxxx>]

Xen: 3.2.1-rc1 (or there abouts) 64bit
dom0: 2.6.16.33 PAE
domU: 2.6.24.4 pv_ops (PAE)

------------[ cut here ]------------
Kernel BUG at c01678a5 [verbose debug info unavailable]
invalid opcode: 0000 [#1] SMP
Modules linked in:

Pid: 11372, comm: runscript.sh Not tainted (2.6.24.4-linode8 #1)
EIP: 0061:[<c01678a5>] EFLAGS: 00010046 CPU: 3
EIP is at kfree+0x95/0xb0
EAX: 00000400 EBX: e0deccc0 ECX: 00000000 EDX: c100c780
ESI: c063c640 EDI: 00000200 EBP: c068cf40 ESP: dbb21e3c
 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0069
Process runscript.sh (pid: 11372, ti=dbb20000 task=db82b000 
task.ti=dbb20000)
Stack: e0deccc0 c145df80 00000001 c013041e c145dfbc 00000000 c068cf18 
c0130597
       c0123cae 00000001 c062eb28 c068fa80 c0123e68 0000000a 00000003 
00000000
       00000009 00000480 c062f280 c0123f55 00000000 c01096c0 514eb045 
00000002
Call Trace:
 [<c013041e>] __rcu_process_callbacks+0x7e/0x1e0
 [<c0130597>] rcu_process_callbacks+0x17/0x30
 [<c0123cae>] tasklet_action+0x4e/0xc0
 [<c0123e68>] __do_softirq+0x88/0x120
 [<c0123f55>] do_softirq+0x55/0x60
 [<c01096c0>] do_IRQ+0x40/0x80
 [<c0102fb8>] xen_evtchn_do_upcall+0xa8/0xe0
 [<c0107690>] xen_hypervisor_callback+0x3c/0x44
 [<c011d8f4>] copy_process+0x794/0x1070
 [<c0167d73>] kmem_cache_alloc+0x53/0xb0
 [<c011e214>] do_fork+0x44/0x210
 [<c012a190>] sigprocmask+0x80/0xf0
 [<c01049b2>] sys_clone+0x32/0x40
 [<c0106a76>] syscall_call+0x7/0xb
 =======================
Code: 89 74 83 14 40 89 03 89 f8 51 52 ff 15 48 50 60 c0 5a 59 5b 5e 5f 
c3 8b 52 0c 8b 0a eb bb 89 c8 89 da e8 8f fe ff ff 8b 03 eb d5 <0f> 0b 
eb fe 8d b4 26 00 00 00 00 8b 52 0c eb ac 8d 74
 26 00 8d
EIP: [<c01678a5>] kfree+0x95/0xb0 SS:ESP 0069:dbb21e3c
Kernel panic - not syncing: Fatal exception in interrupt
WARNING: at arch/x86/xen/smp.c:389 xen_smp_call_function_mask()
Pid: 11372, comm: runscript.sh Tainted: G      D 2.6.24.4-linode8 #1
 [<c0104580>] stop_self+0x0/0x30
 [<c01047cb>] xen_smp_call_function_mask+0x17b/0x180
 [<c011751e>] __wake_up+0x3e/0x60
 [<c0104580>] stop_self+0x0/0x30
 [<c010f2ec>] smp_call_function+0x1c/0x20
 [<c01045c8>] xen_smp_send_stop+0x18/0x20
 [<c011e82e>] panic+0x4e/0x110
 [<c0108210>] die+0x230/0x240
 [<c01089c0>] do_invalid_op+0x0/0x90
 [<c0108a43>] do_invalid_op+0x83/0x90
 [<c01678a5>] kfree+0x95/0xb0
 [<c013c18f>] tick_program_event+0x3f/0x70
 [<c0135e54>] hrtimer_interrupt+0xc4/0x1e0
 [<c0103876>] get_runstate_snapshot+0x46/0x60
 [<c0518ef2>] error_code+0x72/0x78
 [<c01678a5>] kfree+0x95/0xb0
 [<c013041e>] __rcu_process_callbacks+0x7e/0x1e0
 [<c0130597>] rcu_process_callbacks+0x17/0x30
 [<c0123cae>] tasklet_action+0x4e/0xc0
 [<c0123e68>] __do_softirq+0x88/0x120
 [<c0123f55>] do_softirq+0x55/0x60
 [<c01096c0>] do_IRQ+0x40/0x80
 [<c0102fb8>] xen_evtchn_do_upcall+0xa8/0xe0
 [<c0107690>] xen_hypervisor_callback+0x3c/0x44
 [<c011d8f4>] copy_process+0x794/0x1070
 [<c0167d73>] kmem_cache_alloc+0x53/0xb0
 [<c011e214>] do_fork+0x44/0x210
 [<c012a190>] sigprocmask+0x80/0xf0
 [<c01049b2>] sys_clone+0x32/0x40
 [<c0106a76>] syscall_call+0x7/0xb
 =======================

-Chris

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