Re: [Xen-devel] kernel BUG at arch/x86/xen/mmu.c:1860!

[Teck Choon Giam <giamteckchoon@xxxxxxxxx>]

My latest test crash with a little different result:

Jan 15 04:27:16 xen06 kernel: last sysfs file: /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map

Normally is related to LVM/DM but now it is related to shared_cpu_map cache?

Jan 15 04:27:16 xen06 kernel: ------------[ cut here ]------------
Jan 15 04:27:16 xen06 kernel: kernel BUG at arch/x86/xen/mmu.c:1860!
Jan 15 04:27:16 xen06 kernel: invalid opcode: 0000 [#1] SMP 
Jan 15 04:27:16 xen06 kernel: last sysfs file: /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map << SEE THIS?
Jan 15 04:27:16 xen06 kernel: CPU 1 
Jan 15 04:27:16 xen06 kernel: Modules linked in: dm_snapshot ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp gfs2 dlm configfs xt_physdev iptable_filter ip_tables x_tables bridge stp be2iscsi iscsi_tcp bnx2i cnic uio ipv6 cxgb3i cxgb3 mdio libiscsi_tcp libiscsi scsi_transport_iscsi dm_mirror dm_multipath scsi_dh video backlight output sbs sbshc power_meter hwmon battery acpi_memhotplug xen_acpi_memhotplug ac parport_pc lp parport sg tg3 libphy ide_cd_mod cdrom serio_raw button tpm_tis tpm tpm_bios i2c_i801 pcspkr i2c_core shpchp iTCO_wdt dm_region_hash dm_log dm_mod ata_piix libata sd_mod scsi_mod raid1 ext3 jbd uhci_hcd ohci_hcd ehci_hcd [last unloaded: microcode]
Jan 15 04:27:16 xen06 kernel: Pid: 26392, comm: mpath_wait Not tainted 2.6.32.27-0.xen.pvops.choon.centos5 #1 PowerEdge 860
Jan 15 04:27:16 xen06 kernel: RIP: e030:[<ffffffff8100cb5b>]  [<ffffffff8100cb5b>] pin_pagetable_pfn+0x53/0x59
Jan 15 04:27:16 xen06 kernel: RSP: e02b:ffff88001aae5dc8  EFLAGS: 00010282
Jan 15 04:27:16 xen06 kernel: RAX: 00000000ffffffea RBX: 000000000003cf04 RCX: 00000000000001e7
Jan 15 04:27:16 xen06 kernel: RDX: 00000000deadbeef RSI: 00000000deadbeef RDI: 00000000deadbeef
Jan 15 04:27:16 xen06 kernel: RBP: ffff88001aae5de8 R08: 0000000000000820 R09: ffff880000000000
Jan 15 04:27:16 xen06 kernel: R10: 00000000deadbeef R11: 0000000000000246 R12: 0000000000000003
Jan 15 04:27:16 xen06 kernel: R13: 000000000003cf04 R14: ffff88001aa6a7c0 R15: 00000033e1a9a4d5
Jan 15 04:27:16 xen06 kernel: FS:  00007f9b8dbdf6e0(0000) GS:ffff88002806c000(0000) knlGS:0000000000000000
Jan 15 04:27:16 xen06 kernel: CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
Jan 15 04:27:16 xen06 kernel: CR2: 00000033e1a9a4d5 CR3: 000000001ab61000 CR4: 0000000000002660
Jan 15 04:27:16 xen06 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jan 15 04:27:16 xen06 kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jan 15 04:27:16 xen06 kernel: Process mpath_wait (pid: 26392, threadinfo ffff88001aae4000, task ffff88001aa6a7c0)
Jan 15 04:27:16 xen06 kernel: Stack:
Jan 15 04:27:16 xen06 kernel:  0000000000000000 000000000020f3d2 000000013e64d518 000000000003cf04
Jan 15 04:27:16 xen06 kernel: <0> ffff88001aae5e08 ffffffff8100e07c ffff880025db0040 ffff880025fda868
Jan 15 04:27:16 xen06 kernel: <0> ffff88001aae5e18 ffffffff8100e0af ffff88001aae5e58 ffffffff810a402f
Jan 15 04:27:16 xen06 kernel: Call Trace:
Jan 15 04:27:16 xen06 kernel:  [<ffffffff8100e07c>] xen_alloc_ptpage+0x64/0x69
Jan 15 04:27:16 xen06 kernel:  [<ffffffff8100e0af>] xen_alloc_pte+0xe/0x10
Jan 15 04:27:16 xen06 kernel:  [<ffffffff810a402f>] __pte_alloc+0x70/0xce
Jan 15 04:27:16 xen06 kernel:  [<ffffffff810a41cd>] handle_mm_fault+0x140/0x8b9
Jan 15 04:27:16 xen06 kernel:  [<ffffffff81319dd5>] ? page_fault+0x25/0x30
Jan 15 04:27:16 xen06 kernel:  [<ffffffff8131be4d>] do_page_fault+0x252/0x2e2
Jan 15 04:27:16 xen06 kernel:  [<ffffffff8116dd7d>] ? __put_user_4+0x1d/0x30
Jan 15 04:27:16 xen06 kernel:  [<ffffffff81319dd5>] page_fault+0x25/0x30
Jan 15 04:27:16 xen06 kernel: Code: 48 b8 ff ff ff ff ff ff ff 7f 48 21 c2 48 89 55 e8 48 8d 7d e0 be 01 00 00 00 31 d2 41 ba f0 7f 00 00 e8 e9 c7 ff ff 85 c0 74 04 <0f> 0b eb fe c9 c3 55 40 f6 c7 01 48 89 e5 53 48 89 fb 74 5b 48 
Jan 15 04:27:16 xen06 kernel: RIP  [<ffffffff8100cb5b>] pin_pagetable_pfn+0x53/0x59
Jan 15 04:27:16 xen06 kernel:  RSP <ffff88001aae5dc8>
Jan 15 04:27:16 xen06 kernel: ---[ end trace 865f1d440d090f4f ]---

Sorry, this server doesn't have serial console though :(

Thanks.

Kindest regards,
Giam Teck Choon

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