[Bug 1877963] Re: Valgrind throws warnings at some time related glibc 2.31 calls

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: valgrind (Ubuntu)
       Status: New => Confirmed

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Title:
  Valgrind throws warnings at some time related glibc 2.31 calls

Status in valgrind package in Ubuntu:
  Confirmed

Bug description:
  On 20.04 amd64 valgrind 3.15 using glibc 2.31 throws warnings while on
  some time related systemcalls, spamming the output and making it
  unreadable and unusable large. This happens when running on x86
  binaries

  e.g.
  --7970-- WARNING: unhandled x86-linux syscall: 407
  ==7970==    at 0x45765ED: __GI___clock_nanosleep_time64 (clock_nanosleep.c:52)
  ==7970==    by 0x45766D1: clock_nanosleep@@GLIBC_2.17 (clock_nanosleep.c:92)
  ==7970==    by 0x457D153: nanosleep (nanosleep.c:27)
  ==7970==    by 0x45B12B4: usleep (usleep.c:32)
  ...
  --7970-- You may be able to write your own handler.
  --7970-- Read the file README_MISSING_SYSCALL_OR_IOCTL.
  --7970-- Nevertheless we consider this a bug.  Please report
  --7970-- it at http://valgrind.org/support/bug_reports.html.

  at every call of usleep.

  There already is a fix at valgrind git at trunk.
  Related Bugreport there: https://bugs.kde.org/show_bug.cgi?id=416753
  Bugfix commit: https://sourceware.org/git/?p=valgrind.git;a=commit;h=3d6a8157d52f18261f2c1a0888c2cfd3289b371e

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