[Xen-devel] pvgrub crashing after selecting kernel to boot

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

I've also started seeing crashes on 64-bit pvgrub after selecting the 
kernel to boot:
Thread "kbdfront close": pointer: 0x2020004580, stack: 0xcf0000
close fb: backend at /local/domain/0/backend/vfb/1/0
close kbd: backend at /local/domain/0/backend/vkbd/1/0
shutdown_kbdfront: error changing state to 5: ENOENT
Thread "kbdfront close" exited.
Page fault at linear address 0x100953340, rip 0x4b768, regs 0xcdfa68, sp 
0xcdfb18, our_sp 0xcdfa20, code 2
Thread: main
RIP: e030:[<000000000004b768>]
RSP: e02b:0000000000cdfb18  EFLAGS: 00010293
RAX: 0000000000e2e000 RBX: 0000000000cdfb98 RCX: 0000000100953338
RDX: 0000000000000001 RSI: 0000000000953188 RDI: 0000000000000000
RBP: 0000000000cdfb28 R08: 0000000100953338 R09: 0000000000e2c000
R10: 00000000deadbeef R11: 0000000000200030 R12: 0000000000000003
R13: 0000002020305018 R14: 0000000000000000 R15: 0000000000002000
base is 0xcdfb28 caller is 0x57cbd
base is 0xcdfb88 caller is 0x3067
base is 0xcdfc88 caller is 0x5c1b3
base is 0xcdfcd8 caller is 0x5be0a
base is 0xcdfcf8 caller is 0x3db6
base is 0xcdfd38 caller is 0x402e
base is 0xcdfd58 caller is 0x8341
base is 0xcdfd98 caller is 0xaa2f
base is 0xcdfdd8 caller is 0x108ca
base is 0xcdfe88 caller is 0x10f62
base is 0xcdff48 caller is 0x4343
base is 0xcdff58 caller is 0x4b48a
base is 0xcdffe8 caller is 0x33da

cdfb00: 18 fb cd 00 00 00 00 00 2b e0 00 00 00 00 00 00
cdfb10: 20 18 5a bb 00 00 00 00 25 40 98 33 01 00 00 00
cdfb20: 98 fb cd 00 00 00 00 00 88 fb cd 00 00 00 00 00
cdfb30: bd 7c 05 00 00 00 00 00 25 40 98 33 01 00 00 00

cdfb10: 20 18 5a bb 00 00 00 00 25 40 98 33 01 00 00 00
cdfb20: 98 fb cd 00 00 00 00 00 88 fb cd 00 00 00 00 00
cdfb30: bd 7c 05 00 00 00 00 00 25 40 98 33 01 00 00 00
cdfb40: 38 18 5a bb 00 00 00 00 03 00 00 00 01 00 00 00

4b750: f2 b9 80 31 95 00 48 8b 04 f1 4c 8b 00 4c 89 04
4b760: f1 48 8b 08 48 8b 70 08 48 89 71 08 39 d7 74 49
4b770: be 01 00 00 00 41 b8 80 31 95 00 83 ea 01 8d 4a
4b780: 0c 48 89 f3 48 d3 e3 4c 8d 0c 18 41 89 51 10 4c
Pagetable walk from virt 100953340, base a9c000:
 L4 = 00000000bf570067 (0xa9d000)  [offset = 0]
  L3 = 0000000000000000 (0xfffffffffffff000)  [offset = 4]
Page fault in pagetable walk (access to invalid memory?).



It was working until a week or two ago, but I'm not sure what has caused 
the regression.
    J

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel