[Xen-devel] A shadow bug?

["Li, Xin B" <xin.b.li@xxxxxxxxx>]

Hi Tim,
I'm running OLTP on x86_64 SMP FC5 HVM guest, but I saw this messages on
guest console:

mysqld: Corrupted page table at address 2aaaae717000
PGD 33ae0067 PUD 33ae1067 PMD 2ea4c067 PTE 0
Bad pagetable: 000f [1] SMP
last sysfs file: /block/hdc/size
CPU 1
Modules linked in: ipv6 autofs4 hidp l2cap bluetooth sunrpc dm_mirror
dm_mod video button battery ac lp parport_pc parport floppy nvram 8139cp
8139too mii ext3 jbd
Pid: 1966, comm: mysqld Not tainted 2.6.15-1.2054_FC5 #1
RIP: 0033:[<000000000081d76c>] [<000000000081d76c>]
RSP: 002b:0000000045108cb0  EFLAGS: 00010206
RAX: 0000000000000020 RBX: 0000000000000078 RCX: 000000000154d529
RDX: 0000000000000014 RSI: 0000000000000078 RDI: 0000000000b7ce40
RBP: 00000000013e0580 R08: 0000000000000078 R09: 00002aaaae717000
R10: 0000000005991432 R11: 000000000081d730 R12: 00002aaaae716fed
R13: 0000000000002061 R14: 0000000001605540 R15: 00000000000f424b
FS:  000000004510b950(0063) GS:ffff8100021f60c0(0000)
knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00002aaaae717000 CR3: 0000000034f8b000 CR4: 00000000000006e0
Process mysqld (pid: 1966, threadinfo ffff81002c464000, task
ffff81003263b100)

RIP [<000000000081d76c>] RSP <0000000045108cb0>

Not sure if it's really a shadow bug, but it's not hard to reproduce:
1) install FC5 with all package, so mysql will be installed;
2) download and install sysbench 0.4.8;
3) run the script attached to start oltp.

After some while, you may saw the warning, if you can not reproduce it,
pls tell me.
Thanks
-Xin

Attachment: oltp.sh
Description: oltp.sh

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