On Sat, May 02, 2009 at 06:34:59PM -0400, John David Anglin wrote: > Hi Kyle, > > > On Sun, Apr 06, 2008 at 07:09:59PM -0400, John David Anglin wrote: > > > > If you strace it, what syscall returns -EOPNOTSUPP? > > > > > > strace is broken and quits before the relevant syscall. Think I > > > mentioned this before is a different context. > > > > > > > Fixed & updated strace available at > > http://people.debian.org/~kyle/strace/ > > strace is either broken again or debian didn't pick up your fix. The link > to your updated version is broken. > > This happens when tracing sshd during a connection attempt with -f option: > > strace -f -p 2390 > Process 2390 attached - interrupt to quit > _newselect(7, [3 4], NULL, NULL, NULL > ... > [pid 5627] open("/etc/selinux/config", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory) > upeek: ptrace(PTRACE_PEEKUSER,5627,4294967292,0): Input/output error > Process 5627 detached > <... _newselect resumed> ) = 1 (in [6]) > Hmm, I'm seeing strace (4.5.18-1) segfault on sys_rt_sigaction. Rather confused as to why though, (gdb) #0 0x0002b3ec in __canonicalize_funcptr_for_compare () #1 0x00026010 in sys_rt_sigaction (tcp=0x4e060) at ../signal.c:1886 #2 0x00017b10 in trace_syscall (tcp=0x4e060) at ../syscall.c:2553 #3 0x00016c98 in main (argc=<value optimized out>, argv=0xbff8202c) at ../strace.c:2475 which is: if (sa.__sigaction_handler.__sa_handler == SIG_ERR) tprintf("{SIG_ERR, "); where: struct new_sigaction { union { __sighandler_t __sa_handler; void (*__sa_sigaction) (int, siginfo_t *, void *); } __sigaction_handler; which isn't materially different from upstream (just the union...) regards, Kyle -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
