On Sun, Jun 09, 2024 at 08:44:19AM -0400, Mouse wrote: > Okay, this is strictly a debugging workaround: how about building a > kernel with code added so that, whenever a SIGSEGV is delivered, the > siginfo is printed on the console?
Latest SIGSEGV on nagios: 0xbb610570 <__gettimeofday50>: mov $0x1a2,%eax 0xbb610575 <__gettimeofday50+5>: int $0x80 0xbb610577 <__gettimeofday50+7>: jb 0xbb61057a <__gettimeofday50+10> 0xbb610579 <__gettimeofday50+9>: ret => 0xbb61057a <__gettimeofday50+10>: push %ebx I enabled TRAP_SIGDEBUG in src/sys/arch/i386/i386/trap.c and here is what it says: pid 853.853 (nagios): signal 11 code=1 (trap 6) @eip 0xbb61057a addr 0x7513f5a9 error=14 trapframe 0xdd351fa8 eip 0xbb61057a esp 0xbf7fdf34 efl 0x00010217 edi 0xb9a56b80 esi 0xb9be2380 edx 0x00000000 ecx 0xb9a56b8b ebp 0xbf7fdf50 ebx 0xbf7fdfa0 eax 0x00000000 cs 0x0017 ds 0x001f es 0x001f fs 0x00ab gs 0x00b3 ss 0x001f fsbase 0x00cff3000000ffff gsbase 0xbbcff36e89b4ffff Stack dump: 256 bytes @ 0xdd351fa8 b3 00 00 00 ab 00 00 00 1f 00 00 00 1f 00 7f bf | ................ 80 6b a5 b9 80 23 be b9 50 df 7f bf a0 df 7f bf | .k...#..P....... 00 00 00 00 8b 6b a5 b9 00 00 00 00 06 00 00 00 | .....k.......... 04 00 00 00 7a 05 61 bb 17 00 00 00 17 02 01 00 | ....z.a......... 34 df 7f bf 1f 00 00 00 00 00 00 00 00 00 00 00 | 4............... 00 00 00 00 00 00 00 00 f0 3f 35 dd b0 3c 35 dd | .........?5..<5. f4 3c 35 dd 00 00 00 00 f0 e9 c5 ba 00 20 a7 00 | .<5.......... .. 01 00 00 00 ff ff 00 00 00 f3 cf 00 ff ff b4 39 | ...............9 e6 f3 cf ba 00 00 00 00 00 00 00 00 00 00 00 00 | ................ 7f 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | ................ 00 00 00 00 00 00 00 00 7f 03 00 00 00 00 00 00 | ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 | ................ 80 1f 00 00 ff ff 00 00 00 00 00 00 00 00 00 00 | ................ -- Emmanuel Dreyfus m...@netbsd.org
