Re: mc swapping at startup since 4.8.9


On Sun, 18 Aug 2013 10:23:17 +0200 wwp <subscript free fr> wrote:

Hello there,

I've given mc 4.8.9 a try, compiled from the sources on a 64-bit
CentOS6: it eats memory and CPU at start-up, until it got killed
by either me or kernel. Same with 4.8.10. Back to 4.8.8 and it's fine. 

I tried w/ a brand new user (no ~/.mc or ~/.config/mc), same issue.

Any idea what could be wrong either in mc or here?



  Source code location:       .
  Compiler:                   gcc -std=gnu99
  Compiler flags:              -fdiagnostics-show-option -Wcomment -Wdeclaration-after-statement 
-Wfloat-equal -Wformat -Wformat-security -Wimplicit -Wignored-qualifiers -Wmissing-braces 
-Wmissing-declarations -Wmissing-parameter-type -Wmissing-prototypes -Wnested-externs -Wno-long-long 
-Wno-unreachable-code -Wparentheses -Wpointer-sign -Wreturn-type -Wsequence-point -Wshadow -Wsign-compare 
-Wswitch -Wtype-limits -Wuninitialized -Wunused-but-set-variable -Wunused-function -Wunused-label 
-Wunused-parameter -Wunused-value -Wunused-variable -Wwrite-strings  -O2 -g
  File system:                Midnight Commander Virtual Filesystem
                              cpio, tar, sfs, extfs, ftp, fish, smb
  Screen library:
  Mouse support:              gpm and xterm
  X11 events support:         yes
  With subshell support:      yes
  With background operations: yes
  Internal editor:            yes
  Diff viewer:                yes
  Support for charset:        yes
  Search type:                glib-regexp

CentOS 6 up-to-date:
 kernel 2.6.32-358.14.1.el6.x86_64

Hm, a bit of investigation and it appears that breaking mc from within
gdb gives:

(gdb) bt
#0  0x000000319cf34c84 in __strncpy_ssse3 () from /lib64/
#1  0x000000319e65a9ba in g_strndup () from /lib64/
#2  0x000000319e65abe6 in g_ascii_strup () from /lib64/
#3  0x00000000004509bf in str_detect_termencoding () at strutil.c:331
#4  0x0000000000450b4d in str_init_strings (termenc=0x0) at strutil.c:378
#5  0x000000000040e806 in main (argc=1, argv=0x7fffffffe358) at main.c:255

Another interesting point is that compiling mc 4.8.8 from the sources
shows the *exact same problem*. It only works when I get the mc binary
back from a backup. So it's not mc being broken since 4.8.9, but my
system being broken meanwhile?



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