i386/188388: panic: double fault / syscall sys_sys_exit
Белашов Андрей Викторович
Andrey.Belashov at center.rt.ru
Wed Apr 16 09:40:02 UTC 2014
The following reply was made to PR i386/188388; it has been noted by GNATS.
From: =?koi8-r?B?4sXMwdvP1yDhzsTSxcog98nL1M/Sz9fJ3g==?=
<Andrey.Belashov at center.rt.ru>
To: "FreeBSD-gnats-submit at FreeBSD.org" <FreeBSD-gnats-submit at FreeBSD.org>
Cc:
Subject: i386/188388: panic: double fault / syscall sys_sys_exit
Date: Wed, 16 Apr 2014 09:35:24 +0000
Additional debug information. This is strange recursive Page Fault exceptio=
n. This is CPU bug?
The stack is flooded by Page Fault recursion (0xc0f65d4c - Is the address o=
f first instruction of Page Fault handler):
(kgdb) x/64w 0xf66b6000
0xf66b6000: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6010: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6020: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6030: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6040: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6050: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6060: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6070: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6080: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6090: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b60a0: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b60b0: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b60c0: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b60d0: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b60e0: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b60f0: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
[160 similar lines skipped]
(kgdb)
0xf66b6b00: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6b10: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6b20: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6b30: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6b40: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6b50: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6b60: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6b70: 0x00000000 0xc0f65d4c 0x00000020 0x00010006
0xf66b6b80: 0x00000002 0xc0f731d5 0x00000020 0x00010206
0xf66b6b90: 0xc83b6048 0xc989c2f0 0xf66b6ba4 0xc425cff0
0xf66b6ba0: 0xc83b60b0 0xf66b6bd4 0xc0f748dd 0xf5eb7000
0xf66b6bb0: 0x00000001 0xc83b6000 0xf66b6bd4 0xc0d967fb
0xf66b6bc0: 0xc83b6000 0x00000000 0xc83b60b0 0xc83b6000
0xf66b6bd0: 0xc9528000 0xf66b6bf4 0xc0d99eeb 0xc83b60b0
0xf66b6be0: 0x00001000 0xbfc00000 0xc989c2f0 0x00000000
0xf66b6bf0: 0xc9528000 0xf66b6c38 0xc0ab2b5a 0xc989c2f0
(kgdb) info symbol 0xc0f65d4c
Xpage in section .text
Xpage in section .text
(kgdb) x/3i Xpage
0xc0f65d4c <Xpage>: push $0xc
0xc0f65d4e <Xpage+2>: jmp 0xc0f65d90 <alltraps>
0xc0f65d53 <Xpage+7>: nop
With best regards,
Andrew Belashov
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