Package: libev4
Version: 1:4.22-1
Severity: normal

valgrind does this on i386:
      #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("lock; orb $0, 
-1(%%esp)" : : : "memory")

This triggers a warning whenever it is executed under valgrind:
whatever is below the stack pointer is undefined memory by definition.

I have no idea what that fence is supposed to accomplish but it needs to
access a legitimate memory location instead.

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (700, 'testing'), (650, 'unstable'), (600, 'stable'), (550, 
'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386, armhf

Kernel: Linux 4.9.0-rc5-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages libev4 depends on:
ii  libc6  2.24-7

libev4 recommends no packages.

libev4 suggests no packages.

-- no debconf information

Reply via email to