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From: =?koi8-r?B?4sXMwdvP1yDhzsTSxcog98nL1M/Sz9fJ3g==?=
 <Andrey.Belashov@center.rt.ru>
Subject: i386/188388: panic: double fault / syscall sys_sys_exit
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The following reply was made to PR i386/188388; it has been noted by GNATS.

From: =?koi8-r?B?4sXMwdvP1yDhzsTSxcog98nL1M/Sz9fJ3g==?=
	<Andrey.Belashov@center.rt.ru>
To: "FreeBSD-gnats-submit@FreeBSD.org" <FreeBSD-gnats-submit@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