Package: procps
Version: 1:3.2.8-9squeeze1
Severity: normal
Tags: upstream patch
With kernel 3.4.2, vmstat crashes with SIGFPE. The crash happens very often
so that it is reproducible.
On other computer (running with older kernel) I observed unreproducible
vmstat SIGFPE crash in kvm virtualized environment.
I provide this source code patch for vmstat.
--- vmstat.c_ 2012-06-17 19:21:33.000000000 +0200
+++ vmstat.c 2012-06-17 19:22:09.000000000 +0200
@@ -203,6 +203,7 @@
diow= *cpu_iow;
dstl= *cpu_zzz;
Div= duse+dsys+didl+diow+dstl;
+ if (!Div) Div = 1, didl = 1;
divo2= Div/2UL;
printf(format,
running, blocked,
@@ -252,6 +253,7 @@
}
Div= duse+dsys+didl+diow+dstl;
+ if (!Div) Div = 1, didl = 1;
divo2= Div/2UL;
printf(format,
running, blocked,
-- System Information:
Debian Release: 6.0.5
APT prefers stable
APT policy: (500, 'stable')
Architecture: i386 (i686)
Kernel: Linux 3.4.2 (PREEMPT)
Locale: LANG=cs_CZ, LC_CTYPE=cs_CZ (charmap=ISO-8859-2)
Shell: /bin/sh linked to /bin/dash
Versions of packages procps depends on:
ii initscripts 2.88dsf-13.1+squeeze1 scripts for initializing and shutt
ii libc6 2.11.3-3 Embedded GNU C Library: Shared lib
ii libncurses5 5.7+20100313-5 shared libraries for terminal hand
ii libncursesw5 5.7+20100313-5 shared libraries for terminal hand
ii lsb-base 3.2-23.2squeeze1 Linux Standard Base 3.2 init scrip
Versions of packages procps recommends:
ii psmisc 22.11-1 utilities that use the proc file s
procps suggests no packages.
-- no debconf information
--- vmstat.c_ 2012-06-17 19:21:33.000000000 +0200
+++ vmstat.c 2012-06-17 19:22:09.000000000 +0200
@@ -203,6 +203,7 @@
diow= *cpu_iow;
dstl= *cpu_zzz;
Div= duse+dsys+didl+diow+dstl;
+ if (!Div) Div = 1, didl = 1;
divo2= Div/2UL;
printf(format,
running, blocked,
@@ -252,6 +253,7 @@
}
Div= duse+dsys+didl+diow+dstl;
+ if (!Div) Div = 1, didl = 1;
divo2= Div/2UL;
printf(format,
running, blocked,
--- vmstat.c_ 2012-06-17 19:21:33.000000000 +0200
+++ vmstat.c 2012-06-17 19:22:09.000000000 +0200
@@ -203,6 +203,7 @@
diow= *cpu_iow;
dstl= *cpu_zzz;
Div= duse+dsys+didl+diow+dstl;
+ if (!Div) Div = 1, didl = 1;
divo2= Div/2UL;
printf(format,
running, blocked,
@@ -252,6 +253,7 @@
}
Div= duse+dsys+didl+diow+dstl;
+ if (!Div) Div = 1, didl = 1;
divo2= Div/2UL;
printf(format,
running, blocked,
--- vmstat.c_ 2012-06-17 19:21:33.000000000 +0200
+++ vmstat.c 2012-06-17 19:22:09.000000000 +0200
@@ -203,6 +203,7 @@
diow= *cpu_iow;
dstl= *cpu_zzz;
Div= duse+dsys+didl+diow+dstl;
+ if (!Div) Div = 1, didl = 1;
divo2= Div/2UL;
printf(format,
running, blocked,
@@ -252,6 +253,7 @@
}
Div= duse+dsys+didl+diow+dstl;
+ if (!Div) Div = 1, didl = 1;
divo2= Div/2UL;
printf(format,
running, blocked,
--- vmstat.c_ 2012-06-17 19:21:33.000000000 +0200
+++ vmstat.c 2012-06-17 19:22:09.000000000 +0200
@@ -203,6 +203,7 @@
diow= *cpu_iow;
dstl= *cpu_zzz;
Div= duse+dsys+didl+diow+dstl;
+ if (!Div) Div = 1, didl = 1;
divo2= Div/2UL;
printf(format,
running, blocked,
@@ -252,6 +253,7 @@
}
Div= duse+dsys+didl+diow+dstl;
+ if (!Div) Div = 1, didl = 1;
divo2= Div/2UL;
printf(format,
running, blocked,
