-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Ralf Baechle wrote: > On Fri, Jun 15, 2007 at 09:23:34PM +0530, Sadarul Firos wrote: > >> I am working with two MIPS based boards (one is MIPS and the other is >> MIPSEL) running linux-2.6.18/glibc-2.3.5. I am performing a consecutive >> reboot test on these boards. After some number of reboots (say 80) I am >> getting "segmentaion fault/illegal instruction" while running udevd and >> ntpd during bootup. Upon observing the core dump, it is noted that the >> segfault occured from the _init function of libnss_dns.so (in the case >> of ntpd) and libnss_compat.so (in the case of udevd). I assume that >> there might be a problem somewhere in the call_init function in >> glibc-2.3.5/elf/dl-init.c. After I put some printf statements for >> debugging in the call_init function, there is no segfault/illegal >> instruction in the reboot testing. I have also used gdb to debug the >> problem but the "segfault/illegal instruction" doesn't occur during the >> reboot test. Could anyone please help me to sort out this problem. The >> gdb output using coredump is attached. > > Normally the address space layout and most other variables during a > program load should be identical each time so userspace should behave > identical. So I sense the scent of a TLB or more likely cache managment > problem. > > What 2.6.18 variant exactly are you running, that is where & when did > download it, what CPU? > > Ralf > Seems to me like a timing issue if printf'ing helps. You should try invoking udevd by gdb (without the printf's). - -- _______________________________________ Mr Markus Gothe Software Engineer Phone: +46 (0)13 21 81 20 (ext. 1046) Fax: +46 (0)13 21 21 15 Mobile: +46 (0)73 718 72 80 Diskettgatan 11, SE-583 35 Linköping, Sweden www.27m.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFGeB3S6I0XmJx2NrwRCNxBAJ9vZb0+ngxP3nW02nXvKlEKY7DDQwCglXkW ntaDNcvzn2pNdYruCxyZqt8= =2MG9 -----END PGP SIGNATURE-----
