On Wed, Jan 25, 2023 at 10:40 PM Alexey Tikhonov <[email protected]> wrote:
> > > On Wed, Jan 25, 2023 at 5:34 PM Prentice Bisbal <[email protected]> wrote: > >> (difficult to confirm without coredump/backtraces). >> >> Would a stack trace of automount or the sssd daemon be sufficient? >> > No, I meant backtrace from a coredump. Maybe `ltrace` can help also, but I > doubt `strace` is handy here. > >> >> I tried to compile the trivial reproducer from the GitHub Issue you >> linked to, but I'm getting an error when I try to compile it: >> >> # gcc sssd_tester.c -o sssd_tester -lsss_nss_idmap -lpthread -ldl >> sssd_tester.c: In function ‘thread’: >> sssd_tester.c:12:5: warning: implicit declaration of function >> ‘sss_getpwnam’; did you mean ‘getpwnam’? [-Wimplicit-function-declaration] >> 12 | sss_getpwnam("test", &res, buff, sizeof(buff), &errnop); >> | ^~~~~~~~~~~~ >> | getpwnam >> >> It looks like sss_getpwnam isn't defined in any of the header files in >> /usr/include, or I just can't find what package provides it. >> > Link against `/lib64/libnss_sss.so.2`: > Sorry, no need, of course: sss_getpwnam = dlsym(h, "_nss_sss_getpwnam_r"); I just accidentally cut off a few beginning lines of a reproducer, while pasting to github: includes and `sss_getpwnam` variable (pointer to function) declaration. Something like: ``` typedef int (*fp)(const char *name, struct passwd *result, char *buffer, size_t buflen, int *errnop); fp sss_getpwnam; ``` > ``` > $ nm -D /lib64/libnss_sss.so.2 | grep sss_getpwnam > 0000000000005f10 T _nss_sss_getpwnam_r@@EXPORTED > ``` > (no need to link against `sss_nss_idmap`) > > But why? It won't help to assure you face the same issue. > > > > > >
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