[Bug 1745188] Re: gnome-calculator crashed with SIGABRT in mpfr_assert_fail → mpfr_init2 → mpc_init3 → mpc_pow_usi_naive → mpc_pow_usi (regression with mpclib3 1.1.0-1)

[Jean-Baptiste Lallement]

This is because the precision is set to 1 in libmpfr 4.0.0 (in bionic-
proposed) and 2 in libmpfr 3.1.6

mpfr4-4.0.0/src/mpfr.h:#define MPFR_PREC_MIN 1
mpfr4-3.1.6/src/mpfr.h:#define MPFR_PREC_MIN 2

Please downgrade to the versions in bionic until the publication of all
the dependent packages in proposed is done.

** Summary changed:

- gnome-calculator crashed with SIGABRT in mpfr_assert_fail → mpfr_init2 → mpc_init3 → mpc_pow_usi_naive → mpc_pow_usi (regression with mpclib3 1.1.0-1)
+ gnome-calculator crashed with SIGABRT in mpfr_assert_fail → mpfr_init2 → mpc_init3 → mpc_pow_usi_naive → mpc_pow_usi

** Changed in: mpclib3 (Ubuntu)
   Importance: High => Medium

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https://bugs.launchpad.net/bugs/1745188

Title:
  gnome-calculator crashed with SIGABRT in mpfr_assert_fail → mpfr_init2
  → mpc_init3 → mpc_pow_usi_naive → mpc_pow_usi

Status in gnome-calculator package in Ubuntu:
  Triaged
Status in mpclib3 package in Ubuntu:
  Triaged

Bug description:
  I cannot launch gnome-calculator because of the following:

  ```
  ../../src/init2.c:52: MPFR assertion failed: p >= 2 && p <= ((mpfr_prec_t)((mpfr_uprec_t)(~(mpfr_uprec_t)0)>>1))
  Aborted (core dumped)
  ```

  errors.u.c:
  https://errors.ubuntu.com/problem/40a6712b7f663d518c85d34a30891ff7629f9041

  
  ProblemType: Crash
  DistroRelease: Ubuntu 18.04
  Package: gnome-calculator 1:3.26.0-0ubuntu1
  ProcVersionSignature: Ubuntu 4.14.0-13.15-generic 4.14.7
  Uname: Linux 4.14.0-13-generic x86_64
  ApportVersion: 2.20.8-0ubuntu6
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Wed Jan 24 19:13:49 2018
  ExecutablePath: /usr/bin/gnome-calculator
  InstallationDate: Installed on 2017-08-21 (156 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170820)
  ProcCmdline: gnome-calculator
  Signal: 6
  SourcePackage: gnome-calculator
  StacktraceTop:
   mpfr_assert_fail () at /usr/lib/x86_64-linux-gnu/libmpfr.so.4
   mpfr_init2 () at /usr/lib/x86_64-linux-gnu/libmpfr.so.4
   () at /usr/lib/x86_64-linux-gnu/libmpc.so.3
   mpc_pow_usi () at /usr/lib/x86_64-linux-gnu/libmpc.so.3
   number_xpowy_integer () at /usr/lib/x86_64-linux-gnu/gnome-calculator/libcalculator.so
  Title: gnome-calculator crashed with SIGABRT in mpfr_assert_fail()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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