On Wed, Mar 27, 2019 at 01:55:44PM +0000, Zbigniew Jędrzejewski-Szmek wrote: > Hi, > > I'm trying to compile systemd in koji and mock, and I'm getting suspicious > crashes... > > $ valgrind x86_64-redhat-linux-gnu/test-terminal-util > /* test_default_term_for_tty */ > ... > /* test_read_one_char */ > ==21== Invalid read of size 4 > ==21== at 0x48C09EC: fputs (in /usr/lib64/libc-2.29.9000.so) > ==21== by 0x109301: UnknownInlinedFun (test-terminal-util.c:43) > ==21== by 0x109301: main (test-terminal-util.c:80) > ==21== Address 0x0 is not stack'd, malloc'd or (recently) free'd > ==21== > ==21== > ==21== Process terminating with default action of signal 11 (SIGSEGV) > > The problem is at this line, there is just a call to (a function which > transitively calls) mkostemp(). It seems like the inlining is somehow > going wrong.
It turns out that our test case was wrong. I was confused because the inlining causes the backtrace to report an unrelated spot. > Strangely, gdb also crashes: > $ gdb x86_64-redhat-linux-gnu/test-terminal-util > GNU gdb (GDB) Fedora 8.3.50.20190321-3.fc31 > ... > Reading symbols from x86_64-redhat-linux-gnu/test-terminal-util... > (gdb) r > Starting program: > /builddir/build/BUILD/systemd-49bd196d693efe0acfc8d56c4e3d8f7ba9f91b5d/x86_64-redhat-linux-gnu/test-terminal-util > > Missing separate debuginfos, use: dnf debuginfo-install > glibc-2.29.9000-8.fc31.x86_64 > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/lib64/libthread_db.so.1". > /* test_default_term_for_tty */ > ... > /* test_read_one_char */ > > Program received signal SIGSEGV, Segmentation fault. > 0x00007ffff7e759ec in fputs () from /lib64/libc.so.6 > Segmentation fault (core dumped) This is still a problem. gdb crashes on any program in rawhide mock for me right now. But gcc seems to be fine. Zbyszek _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
