Date: Wed, 16 Apr 2014 09:40:01 GMT From: =?koi8-r?B?4sXMwdvP1yDhzsTSxcog98nL1M/Sz9fJ3g==?= <Andrey.Belashov@center.rt.ru> To: freebsd-i386@FreeBSD.org Subject: i386/188388: panic: double fault / syscall sys_sys_exit Message-ID: <201404160940.s3G9e1WX093357@freefall.freebsd.org>
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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
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