[Xen-users] [3.4.2 Dom0 crash] (XEN) mm.c: Error getting mfn from L1 entry

[Christian Fischer <Christian.Fischer@xxxxxxxxxxxxxxxxxxx>]

Hi all,

I've dom0 crashes running 64bit windows.

system: HP ProLiant DL 380G6 2x X5550 20GB Ram
OS: gentoo amd64
kernel: gentoo xen-sources-2.6.29-r4
Xen: 3.4.2

This is not a PAE-Build of xen, but i must turn on pae for the hvm guest to 
run, that's a bit confusing for me, I thought it is for 32bit highmem 
support.

Please can you help me to track down the problem?

Christian


brlan: port 6(vif4.0) entering forwarding state
(XEN) mm.c:806:d0 Error getting mfn a6ad (pfn 3c3c4) from L1 entry 
801000000a6adc07 for l1e_owner=0, pg_owner=0
(XEN) mm.c:4203:d0 ptwr_emulate: could not get_page_from_l1e()
BUG: unable to handle kernel paging request at ffff8804e4f94013
IP: [<ffffffff803ca88b>] swiotlb_bounce+0x35/0x3a
PGD 916067 PUD 5674067 PMD 579c067 PTE 80100004e4f94065
Oops: 0003 [#1] SMP
last sysfs file: /sys/devices/xen-backend/vbd-4-768/statistics/wr_sect
CPU 0
Pid: 0, comm: swapper Not tainted 2.6.29-xen-r400 #5 ProLiant DL380 G6
RIP: e030:[<ffffffff803ca88b>]  [<ffffffff803ca88b>] swiotlb_bounce+0x35/0x3a
RSP: e02b:ffffffff8085dec0  EFLAGS: 00010202
RAX: 0000000000001000 RBX: 0000000000000058 RCX: 0000000000000fed
RDX: 0000000000001000 RSI: ffff88001a27f013 RDI: ffff8804e4f94013
RBP: 0000000000000058 R08: ffff88001a27f000 R09: 00000004e4f94000
R10: 00001c1c00001000 R11: 0000000000000002 R12: 0000000000001000
R13: 0000000000000002 R14: ffff8804e7200000 R15: ffff8804e587ef70
FS:  00007f8431b556f0(0000) GS:ffffffff8085f040(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff8804e4f94013 CR3: 00000001de97d000 CR4: 0000000000002660
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper (pid: 0, threadinfo ffffffff80802000, task ffffffff8076d320)
Stack:
 0000000000001000 ffffffff803cad5a ffff8804e7fa0000 ffff8804e7200020
 0000000000000002 ffffffff80479f2a 0000000000000002 ffffffff8085df30
 0000000000000020 0000000000000001 ffffffff80856ab0 000000000000000a
Call Trace:
 <IRQ> <0> [<ffffffff803cad5a>] ? unmap_single+0x40/0xd2
 [<ffffffff80479f2a>] ? cciss_softirq_done+0x87/0x1b4
 [<ffffffff803b2034>] ? blk_done_softirq+0x9c/0xae
 [<ffffffff80230bf1>] ? __do_softirq+0xa0/0x153
 [<ffffffff8020b3ec>] ? call_softirq+0x1c/0x28
 [<ffffffff8020c907>] ? do_softirq+0x4b/0xce
 [<ffffffff8020ae5e>] ? do_hypervisor_callback+0x1e/0x30
 <EOI> <0> [<ffffffff8020d226>] ? xen_safe_halt+0xa2/0xb7
 [<ffffffff802105c3>] ? xen_idle+0x2e/0x67
 [<ffffffff80209a06>] ? cpu_idle+0x57/0x93
Code: 48 89 d0 ff c9 75 13 48 be 00 00 00 00 00 88 ff ff 48 8d 34 37 4c 89 c7 
eb 0e 48 bf 00 00 00 00 00 88 ff ff 49 8d 3c 39 48 89 c1 <f3> a4 41 58 c3 49 
89 d0 48 89 f0 48 8b 15 63 5b 4f 00 48 2b 05
RIP  [<ffffffff803ca88b>] swiotlb_bounce+0x35/0x3a
 RSP <ffffffff8085dec0>
CR2: ffff8804e4f94013
---[ end trace 0787a6f026a147e9 ]---
Kernel panic - not syncing: Fatal exception in interrupt
------------[ cut here ]------------
WARNING: at kernel/smp.c:329 smp_call_function_many+0x4c/0x1f3()
Hardware name: ProLiant DL380 G6
Pid: 0, comm: swapper Tainted: G      D    2.6.29-xen-r400 #5
Call Trace:
 <IRQ>  [<ffffffff8022b854>] warn_slowpath+0xd3/0x10d
 [<ffffffff8022bfbd>] release_console_sem+0x1e9/0x21b
 [<ffffffff8022c49f>] vprintk+0x2be/0x319
 [<ffffffff8063498d>] printk+0x4e/0x56
 [<ffffffff8022bfbd>] release_console_sem+0x1e9/0x21b
 [<ffffffff8024834f>] smp_call_function_many+0x4c/0x1f3
 [<ffffffff80210558>] stop_this_cpu+0x0/0x3d
 [<ffffffff80248516>] smp_call_function+0x20/0x25
 [<ffffffff80215249>] xen_smp_send_stop+0x11/0x7b
 [<ffffffff80634884>] panic+0x8d/0x148
 [<ffffffff80241180>] up+0xe/0x36
 [<ffffffff8022bfbd>] release_console_sem+0x1e9/0x21b
 [<ffffffff8020e78d>] oops_end+0xc2/0xcf
 [<ffffffff80218283>] do_page_fault+0xed7/0xf6c
 [<ffffffff802251a4>] enqueue_task_fair+0xb1/0x148
 [<ffffffff803baaaa>] cpumask_next_and+0x2a/0x3a
 [<ffffffff80223bba>] find_busiest_group+0x302/0x6ac
 [<ffffffff804b853f>] evtchn_get_xen_pirq+0x46/0x66
 [<ffffffff804b8639>] pirq_unmask_and_notify+0xda/0xe4
 [<ffffffff80637678>] page_fault+0x28/0x30
 [<ffffffff803ca88b>] swiotlb_bounce+0x35/0x3a
 [<ffffffff803cad5a>] unmap_single+0x40/0xd2
 [<ffffffff80479f2a>] cciss_softirq_done+0x87/0x1b4
 [<ffffffff803b2034>] blk_done_softirq+0x9c/0xae
 [<ffffffff80230bf1>] __do_softirq+0xa0/0x153
 [<ffffffff8020b3ec>] call_softirq+0x1c/0x28
 [<ffffffff8020c907>] do_softirq+0x4b/0xce
 [<ffffffff8020ae5e>] do_hypervisor_callback+0x1e/0x30
 <EOI>  [<ffffffff8020d226>] xen_safe_halt+0xa2/0xb7
 [<ffffffff802105c3>] xen_idle+0x2e/0x67
 [<ffffffff80209a06>] cpu_idle+0x57/0x93
---[ end trace 0787a6f026a147ea ]---
------------[ cut here ]------------
WARNING: at kernel/smp.c:226 smp_call_function_single+0x48/0x15c()
Hardware name: ProLiant DL380 G6
Pid: 0, comm: swapper Tainted: G      D W  2.6.29-xen-r400 #5
Call Trace:
 <IRQ>  [<ffffffff8022b854>] warn_slowpath+0xd3/0x10d
 [<ffffffff8022bfbd>] release_console_sem+0x1e9/0x21b
 [<ffffffff8022c49f>] vprintk+0x2be/0x319
 [<ffffffff8063498d>] printk+0x4e/0x56
 [<ffffffff8022bfbd>] release_console_sem+0x1e9/0x21b
 [<ffffffff802481ef>] smp_call_function_single+0x48/0x15c
 [<ffffffff8024839a>] smp_call_function_many+0x97/0x1f3
 [<ffffffff80210558>] stop_this_cpu+0x0/0x3d
 [<ffffffff80248516>] smp_call_function+0x20/0x25
 [<ffffffff80215249>] xen_smp_send_stop+0x11/0x7b
 [<ffffffff80634884>] panic+0x8d/0x148
 [<ffffffff80241180>] up+0xe/0x36
 [<ffffffff8022bfbd>] release_console_sem+0x1e9/0x21b
 [<ffffffff8020e78d>] oops_end+0xc2/0xcf
 [<ffffffff80218283>] do_page_fault+0xed7/0xf6c
 [<ffffffff802251a4>] enqueue_task_fair+0xb1/0x148
 [<ffffffff803baaaa>] cpumask_next_and+0x2a/0x3a
 [<ffffffff80223bba>] find_busiest_group+0x302/0x6ac
 [<ffffffff804b853f>] evtchn_get_xen_pirq+0x46/0x66
 [<ffffffff804b8639>] pirq_unmask_and_notify+0xda/0xe4
 [<ffffffff80637678>] page_fault+0x28/0x30
 [<ffffffff803ca88b>] swiotlb_bounce+0x35/0x3a
 [<ffffffff803cad5a>] unmap_single+0x40/0xd2
 [<ffffffff80479f2a>] cciss_softirq_done+0x87/0x1b4
 [<ffffffff803b2034>] blk_done_softirq+0x9c/0xae
 [<ffffffff80230bf1>] __do_softirq+0xa0/0x153
 [<ffffffff8020b3ec>] call_softirq+0x1c/0x28
 [<ffffffff8020c907>] do_softirq+0x4b/0xce
 [<ffffffff8020ae5e>] do_hypervisor_callback+0x1e/0x30
 <EOI>  [<ffffffff8020d226>] xen_safe_halt+0xa2/0xb7
 [<ffffffff802105c3>] xen_idle+0x2e/0x67
 [<ffffffff80209a06>] cpu_idle+0x57/0x93
---[ end trace 0787a6f026a147eb ]---




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