Martijn van Oosterhout wrote: > On Thu, May 04, 2006 at 12:22:01PM +0100, Gavin Hamill wrote: >> Hi, our 8.1.3 system on quad Xeon has been happily chugging away for >> weeks with no stability problems until yesterday: >> >> /var/log/syslog:May 4 11:57:17 cayenne kernel: postmaster[19291]: >> segfault at 0000000000000000 rip 00002aaaab5e8c00 rsp >> 00007fffffffd418 error 4 > > <snip> > >> I don't know what the rip + rsp values represent, but is it >> interesting that they are identical in all three cases? > > At a guess rip = return instruction pointer, rsp = return stack > point. The fact that they're all the same seems to rule out hardware. The R* registers in AMD64 are just the 64-bit extensions to the standard registers. They couldn't use EIP because that was taken in the expansion from 16-bit to 32-bit. So RIP is simply the 64-bit instruction pointer, RSP the 64-bit stack pointer. -- Guy Rouillier
