Package: ghc Version: 9.0.2-4 Severity: normal Tags: upstream X-Debbugs-Cc: [email protected]
Dear Maintainer, GHCi seems to segfault randomly every now and then, after seemingly failing to allocate memory for simple operations, e.g.: $ ghci GHCi, version 9.0.2: https://www.haskell.org/ghc/ :? for help ghci> 750+850 1600 ghc: mmap 4096 bytes at (nil): Cannot allocate memory ghc: Try specifying an address with +RTS -xm<addr> -RTS zsh: segmentation fault ghci Shortly afterwards, the same commands may work perfectly well. I've observed this happen on two completely different machines, but have been unable to consistently reproduce. Upstream describes the issue at https://discourse.haskell.org/t/facing-mmap-4096-bytes-at-nil-cannot-allocate-memory-youre-not-alone/6259 but it seems that the fix has not been backported to 9.0.x. I have no idea how hard it would be to do. Sorry for not catching this before Bookworm released. I do believe I saw the segfault once or twice before the release, but I must have chalked it up to a hardware fault or something :-/ -- System Information: Debian Release: 12.0 APT prefers stable-security APT policy: (500, 'stable-security'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.1.0-9-amd64 (SMP w/6 CPU threads; PREEMPT) Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages ghc depends on: ii dpkg 1.21.22 ii gcc 4:12.2.0-3 ii libbsd-dev 0.11.7-2 ii libc6 2.36-9 ii libc6-dev 2.36-9 ii libffi-dev 3.4.4-1 ii libffi8 3.4.4-1 ii libgmp-dev 2:6.2.1+dfsg1-1.1 ii libgmp10 2:6.2.1+dfsg1-1.1 ii libncurses-dev 6.4-4 ii libtinfo6 6.4-4 ghc recommends no packages. Versions of packages ghc suggests: pn ghc-doc <none> pn ghc-prof <none> pn haskell-doc <none> ii llvm-13 1:13.0.1-11+b2 ii perl 5.36.0-7 -- no debconf information
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