[Xen-devel] 2.6.27-rc1 crashing under Xen 3.1.2, 3.1.3

["Carl Jones" <carl.jones@xxxxxxxxx>]

Hi,

I'm testing 2.6.27-rc1 and it appears to crash when booting under
3.1.2 and 3.1.3.

Host is 2x Xeon 5410/32GB, 3.1.2 on x86_64 (from source).

I see the same issue using 2.6.26. The same kernel will boot fine
under 3.2.x, and 3.1.4 (just not 3.1.2 or 3.1.3). Older kernels e.g.
2.6.24 boot fine.

domU has 256MB memory, 1 VCPU.

dmesg output is below.
Kernel config: http://radium.outervoid.net/~carl/2.6.27-rc1

Regards,
Carl

Reserving virtual address space above 0xf57fe000
Linux version 2.6.27-rc1-xenU (root@x) (gcc version 4.1.2 20071124
(Red Hat 4.1.2-42)) #4 SMP Mon Aug 4 20:52:48 EDT 2008
------------[ cut here ]------------
WARNING: at arch/x86/mm/ioremap.c:469 early_ioremap_init+0x126/0x210()
Pid: 0, comm: swapper Not tainted 2.6.27-rc1-xenU #4
 [<c012365a>] warn_on_slowpath+0x5a/0xa0
 [<c0103a94>] xen_mc_flush+0xc4/0x190
 [<c0104b02>] xen_set_pmd_hyper+0x72/0x90
 [<c03095c6>] early_ioremap_init+0x126/0x210
 [<c02ffc99>] setup_arch+0x29/0x5d0
 [<c02fbb41>] start_kernel+0x61/0x2a0
 [<c02ff16a>] xen_start_kernel+0x58a/0x650
 =======================
---[ end trace 4eaa2a86a8e2da22 ]---
pmd c033cd50 != c033cd58
fix_to_virt(FIX_BTMAP_BEGIN): f55fe000
fix_to_virt(FIX_BTMAP_END):   f56fd000
FIX_BTMAP_END:       256
FIX_BTMAP_BEGIN:     511
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 00000000000a0000 (usable)
 Xen: 00000000000a0000 - 0000000000100000 (reserved)
 Xen: 0000000000100000 - 0000000000366000 (usable)
 Xen: 0000000000366000 - 00000000003a9000 (reserved)
 Xen: 00000000003a9000 - 0000000010000000 (usable)
last_pfn = 0x10000 max_arch_pfn = 0x1000000
NX (Execute Disable) protection: active
DMI not present or invalid.
0MB HIGHMEM available.
256MB LOWMEM available.
  mapped low ram: 0 - 10000000
  low ram: 00000000 - 10000000
  bootmap 00002000 - 00004000
(7 early reservations) ==> bootmem [0000000000 - 0010000000]
  #0 [0000000000 - 0000001000]   BIOS data page ==> [0000000000 - 0000001000]
  #1 [0000001000 - 0000002000]    EX TRAMPOLINE ==> [0000001000 - 0000002000]
  #2 [0000006000 - 0000007000]       TRAMPOLINE ==> [0000006000 - 0000007000]
  #3 [0000100000 - 00003656f0]    TEXT DATA BSS ==> [0000100000 - 00003656f0]
  #4 [00003a9000 - 00003af000]    INIT_PG_TABLE ==> [00003a9000 - 00003af000]
  #5 [0000007000 - 0000081000]          PGTABLE ==> [0000007000 - 0000081000]
  #6 [0000002000 - 0000004000]          BOOTMAP ==> [0000002000 - 0000004000]
Zone PFN ranges:
  DMA      0x00000000 -> 0x00001000
  Normal   0x00001000 -> 0x00010000
  HighMem  0x00010000 -> 0x00010000
Movable zone start PFN for each node
early_node_map[3] active PFN ranges
    0: 0x00000000 -> 0x000000a0
    0: 0x00000100 -> 0x00000366
    0: 0x000003a9 -> 0x00010000
Local APIC disabled by BIOS -- you can enable it with "lapic"
Allocating PCI resources starting at 20000000 (gap: 10000000:f0000000)
PERCPU: Allocating 32180 bytes of per cpu data
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 64861
Kernel command line: root=/dev/xvda1 ro console=hvc
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Initializing CPU#0
PID hash table entries: 1024 (order: 10, 4096 bytes)
Detected 1600.003 MHz processor.
Console: colour dummy device 80x25
console [tty0] enabled
console [hvc0] enabled
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 256076k/262144k available (1505k kernel code, 5272k reserved,
495k data, 232k init, 0k highmem)
virtual kernel memory layout:
    fixmap  : 0xf574f000 - 0xf57fd000   ( 696 kB)
    pkmap   : 0xf5200000 - 0xf5400000   (2048 kB)
    vmalloc : 0xd0800000 - 0xf51fe000   ( 585 MB)
    lowmem  : 0xc0000000 - 0xd0000000   ( 256 MB)
      .init : 0xc02fb000 - 0xc0335000   ( 232 kB)
      .data : 0xc027840f - 0xc02f4218   ( 495 kB)
      .text : 0xc0100000 - 0xc027840f   (1505 kB)
Checking if this processor honours the WP bit even in supervisor mode...Ok.
1 multicall(s) failed: cpu 0
Pid: 0, comm: swapper Tainted: G        W 2.6.27-rc1-xenU #4
 [<c0103afa>] xen_mc_flush+0x12a/0x190
 [<c0104a3d>] xen_set_pud_hyper+0x8d/0x90
 [<c0115965>] zap_low_mappings+0x55/0x80
 [<c02fbcb4>] start_kernel+0x1d4/0x2a0
 [<c02fb670>] unknown_bootoption+0x0/0x1f0
 [<c02ff16a>] xen_start_kernel+0x58a/0x650
 =======================
  call  1/1: op=1 arg=[c1203860] result=-22
------------[ cut here ]------------
kernel BUG at arch/x86/xen/multicalls.c:104!
invalid opcode: 0000 [#1] SMP

Pid: 0, comm: swapper Tainted: G        W (2.6.27-rc1-xenU #4)
EIP: e019:[<c0103b50>] EFLAGS: 00010002 CPU: 0
EIP is at xen_mc_flush+0x180/0x190
EAX: 00000000 EBX: c1203080 ECX: 00000000 EDX: 00000001
ESI: 00000001 EDI: 00000001 EBP: c1203060 ESP: c02f7f2c
 DS: e021 ES: e021 FS: 00d8 GS: 0000 SS: e021
Process swapper (pid: 0, ti=c02f6000 task=c02cd340 task.ti=c02f6000)
Stack: c02ae578 00000001 00000001 00000001 c1203860 ffffffea 00000000 00ed6000
       1a8e2001 00000005 c02df000 c0104a3d 1a93a000 00000005 1a8e2001 00000005
       1a8e2001 00000005 00000005 c02df000 c0115965 1a8e2001 00000005 00337001
Call Trace:
 [<c0104a3d>] xen_set_pud_hyper+0x8d/0x90
 [<c0115965>] zap_low_mappings+0x55/0x80
 [<c02fbcb4>] start_kernel+0x1d4/0x2a0
 [<c02fb670>] unknown_bootoption+0x0/0x1f0
 [<c02ff16a>] xen_start_kernel+0x58a/0x650
 =======================
Code: 00 83 c3 20 89 54 24 08 89 74 24 04 c7 04 24 78 e5 2a c0 89 44
24 0c e8 2f 06 02 00 8b 95 00 0b 00 00 39 d6 72 c1 e9 12 ff ff ff <0f>
0b eb fe 0f 0b eb fe 90 8d b4 26 00 00 00 00 83 ec 0c 89 1c
EIP: [<c0103b50>] xen_mc_flush+0x180/0x190 SS:ESP e021:c02f7f2c
---[ end trace 4eaa2a86a8e2da22 ]---
Kernel panic - not syncing: Attempted to kill the idle task!
------------[ cut here ]------------
WARNING: at kernel/smp.c:290 smp_call_function_mask+0x153/0x160()
Pid: 0, comm: swapper Tainted: G      D W 2.6.27-rc1-xenU #4
 [<c012365a>] warn_on_slowpath+0x5a/0xa0
 [<c02065e1>] scrup+0xa1/0x110
 [<c01398b7>] atomic_notifier_call_chain+0x17/0x20
 [<c020666f>] notify_update+0x1f/0x30
 [<c02068db>] vt_console_print+0x1eb/0x2b0
 [<c0277452>] _spin_lock_irqsave+0x32/0x50
 [<c0277483>] _spin_unlock_irqrestore+0x13/0x20
 [<c0123c27>] release_console_sem+0x197/0x1d0
 [<c0123f98>] vprintk+0x158/0x330
 [<c0142bd3>] smp_call_function_mask+0x153/0x160
 [<c0105b10>] stop_self+0x0/0x30
 [<c0123c27>] release_console_sem+0x197/0x1d0
 [<c0123f98>] vprintk+0x158/0x330
 [<c0208486>] do_unblank_screen+0x16/0x130
 [<c0142bf4>] smp_call_function+0x14/0x20
 [<c012354e>] panic+0x4e/0x100
 [<c012676c>] do_exit+0x7dc/0x7e0
 [<c012418b>] printk+0x1b/0x20
 [<c012418b>] printk+0x1b/0x20
 [<c0108da8>] oops_end+0x98/0xa0
 [<c0109580>] do_invalid_op+0x0/0x90
 [<c0109601>] do_invalid_op+0x81/0x90
 [<c0103b50>] xen_mc_flush+0x180/0x190
 [<c0277483>] _spin_unlock_irqrestore+0x13/0x20
 [<c0123c27>] release_console_sem+0x197/0x1d0
 [<c0123f98>] vprintk+0x158/0x330
 [<c0133bc5>] __kernel_text_address+0x5/0x10
 [<c0108f45>] dump_trace+0xa5/0xf0
 [<c012418b>] printk+0x1b/0x20
 [<c027771a>] error_code+0x72/0x78
 [<c0103b50>] xen_mc_flush+0x180/0x190
 [<c0104a3d>] xen_set_pud_hyper+0x8d/0x90
 [<c0115965>] zap_low_mappings+0x55/0x80
 [<c02fbcb4>] start_kernel+0x1d4/0x2a0
 [<c02fb670>] unknown_bootoption+0x0/0x1f0
 [<c02ff16a>] xen_start_kernel+0x58a/0x650
 =======================
---[ end trace 4eaa2a86a8e2da22 ]---

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