Package: ghc Version: 8.8.4-1 Severity: serious User: ubuntu-de...@lists.ubuntu.com Usertags: origin-ubuntu hirsute
Dear maintainers, We have started doing mass-rebuilds of the haskell stack in Ubuntu for ghc 8.8.4-1 and have found a pattern of failures on ppc64el where in some cases the build fails because the doctest runs the just-built binary, and the just-built binary triggers a stack overflow due to an infinitely recursive call of some sort. https://people.canonical.com/~ubuntu-archive/transitions/html/ghc.html I have reproduced this on plummer with haskell-network-byte-order, so it is not an Ubuntu-specific issue. gdb output looks like: $ gdb ./dist-ghc/build/doctest/doctest [...] Reading symbols from ./dist-ghc/build/doctest/doctest... (No debugging symbols found in ./dist-ghc/build/doctest/doctest) (gdb) run Starting program: /tmp/haskell-network-byte-order-0.1.5/dist-ghc/build/doctest/doctest [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/powerpc64le-linux-gnu/libthread_db.so.1". Program received signal SIGSEGV, Segmentation fault. 0x0000000014dc8acc in __libc_csu_init () (gdb) bt #0 0x0000000014dc8acc in __libc_csu_init () #1 0x0000000014dc8b0c in __libc_csu_init () #2 0x0000000014dc8b0c in __libc_csu_init () #3 0x0000000014dc8b0c in __libc_csu_init () #4 0x0000000014dc8b0c in __libc_csu_init () #5 0x0000000014dc8b0c in __libc_csu_init () #6 0x0000000014dc8b0c in __libc_csu_init () #7 0x0000000014dc8b0c in __libc_csu_init () #8 0x0000000014dc8b0c in __libc_csu_init () #9 0x0000000014dc8b0c in __libc_csu_init () #10 0x0000000014dc8b0c in __libc_csu_init () #11 0x0000000014dc8b0c in __libc_csu_init () #12 0x0000000014dc8b0c in __libc_csu_init () #13 0x0000000014dc8b0c in __libc_csu_init () #14 0x0000000014dc8b0c in __libc_csu_init () #15 0x0000000014dc8b0c in __libc_csu_init () #16 0x0000000014dc8b0c in __libc_csu_init () #17 0x0000000014dc8b0c in __libc_csu_init () #18 0x0000000014dc8b0c in __libc_csu_init () #19 0x0000000014dc8b0c in __libc_csu_init () #20 0x0000000014dc8b0c in __libc_csu_init () #21 0x0000000014dc8b0c in __libc_csu_init () #22 0x0000000014dc8b0c in __libc_csu_init () --Type <RET> for more, q to quit, c to continue without paging-- [...] #93284 0x0000000014dc8b0c in __libc_csu_init () #93285 0x0000000014dc8b0c in __libc_csu_init () #93286 0x0000000014dc8b0c in __libc_csu_init () #93287 0x0000000014dc8b0c in __libc_csu_init () #93288 0x0000000014dc8b0c in __libc_csu_init () #93289 0x0000000014dc8b0c in __libc_csu_init () #93290 0x0000000014dc8b0c in __libc_csu_init () #93291 0x0000000014dc8b0c in __libc_csu_init () #93292 0x0000000014dc8b0c in __libc_csu_init () #93293 0x0000000014dc8b0c in __libc_csu_init () #93294 0x0000000014dc8b0c in __libc_csu_init () #93295 0x0000000014dc8b0c in __libc_csu_init () Killed $ valgrind shows nothing interesting prior to hitting the stack overflow. -- Steve Langasek Give me a lever long enough and a Free OS Debian Developer to set it on, and I can move the world. Ubuntu Developer https://www.debian.org/ slanga...@ubuntu.com vor...@debian.org
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