On Wed, Jan 12, 2005 at 10:13:50AM -0500, Stephen Frost wrote: > * [EMAIL PROTECTED] ([EMAIL PROTECTED]) wrote: > > You're welcome. Can you strace the grub process and see what's wrong > > with it ? > > For my installation, grub is pretty useless since I'm full LVM/DM. > > Not sure how useful this is, but... > > From dmesg: > grub[15266]: segfault at 00000000555bcb30 rip 00000000555bcb30 rsp > 00000000555bc9fc error 15 > > Attached is the strace output, I didn't see anything obvious in it.
I had the exact same problem (on Ubuntu rather than Debian, but hey). Debugging-by-printf revealed that grub segfaulted after calling stage2/builtins.c:disk_read_savesect_func() through the disk_read_func pointer in stage2/disk_io.c:rawread(); output from a printf before that call was printed, while output from a printf at the beginning of the disk_read_savesect_func() call was not printed. It *looks* like the text of that function is corrupt in memory, although I'm not wholly convinced that my debugging techniques were sound there because I'm having trouble debugging a 32-bit binary. disk_read_savesect_func() is a static nested function, which are rare in C code (and a gcc extension). Perhaps that provides a clue? Cheers, -- Colin Watson [EMAIL PROTECTED] -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
