Launchpad has imported 1 comments from the remote bug at https://bugzilla.kernel.org/show_bug.cgi?id=201741.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2018-11-20T21:53:54+00:00 hjl.tools wrote: Created attachment 279555 A testcase commit 379d98ddf41344273d9718556f761420f4dc80b3 Author: Alistair Strachan <astrac...@google.com> Date: Fri Aug 3 10:39:31 2018 -0700 x86: vdso: Use $LD instead of $CC to link The vdso{32,64}.so can fail to link with CC=clang when clang tries to find a suitable GCC toolchain to link these libraries with. /usr/bin/ld: arch/x86/entry/vdso/vclock_gettime.o: access beyond end of merged section (782) breaks i386 vDSO with incorrect unwind info. The testcase here should report: [hjl@gnu-hsw-1 tmp]$ gcc -g -O2 -funwind-tables -m32 foo.c [hjl@gnu-hsw-1 tmp]$ ./a.out Obtained backtrace with 7 functions Function 0: ./a.out() [0x8049272] Function 1: linux-gate.so.1(__kernel_sigreturn+0) [0xf7f990b0] Function 2: linux-gate.so.1(__kernel_vsyscall+0x9) [0xf7f99099] Function 3: /lib/libc.so.6(__read+0x2b) [0xf7ea72ab] Function 4: ./a.out() [0x80493a9] Function 5: ./a.out() [0x80493f3] Function 6: ./a.out() [0x80493f3] [hjl@gnu-hsw-1 tmp]$ But kernel 4.19 got [hjl@gnu-cfl-1 tmp]$ ./a.out Obtained backtrace with 4 functions Failure on line 67 [hjl@gnu-cfl-1 tmp]$ Revert the commit fixes i386 vDSO. Reply at: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1805154/comments/0 ** Changed in: linux Status: Unknown => Confirmed ** Changed in: linux Importance: Unknown => Medium ** Changed in: fedora Status: Unknown => Confirmed ** Changed in: fedora Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1805154 Title: glibc 2.28-0ubuntu1 ADT test failure with linux 4.19.0-5.6 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1805154/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
