Re: Heads up - exmh doesn't play nice with Fedora Rawhide glibc updat e

The precise version/patchlevel of Tcl will be important when reporting
this.  In tclsh check the value of tcl_patchLevel

>>>[email protected] said:
 
 > I'm seeing crashes inside TCL when starting exmh on a FC6-ish
 > system after upgrading to glibc-2.4.90-23, I'm suspecting this:
 > 
 > * Tue Aug 22 2006 Jakub Jelinek <[email protected]> 2.4.90-23
 > - malloc fixes, especially for 32-bit arches (#202309)
 > 
 > 2.4.90-21 was running OK.  Temporary workaround:
 > 
 > MALLOC_CHECK_=1 /usr/local/bin/exmh &
 > 
 > Running wish under valgrind finds a *lot* of 4-byte overlays - I suspect
 > the malloc tweaking has tightened up some allocation slack that is now
 > becoming an issue.  I'll probably report this as a Tcl/Tk bug when I have
 > something narrowed down enough.
 > 
 > (The crash message, for any who care:
 > 
 > *** glibc detected *** /usr/local/bin/wish: corrupted double-linked 
list: 0x
     085e4460 ***
 > ======= Backtrace: =========
 > /lib/libc.so.6[0xb7ad75cb]
 > /lib/libc.so.6[0xb7ad8f0e]
 > /lib/libc.so.6(cfree+0x90)[0xb7ad9360]
 > /usr/local/lib/libtcl8.5.so(TclpFree+0x22)[0xb7e10608]
 > /usr/local/lib/libtcl8.5.so(Tcl_Free+0x22)[0xb7e169ca]
 > /usr/local/lib/libtcl8.5.so[0xb7e551fa]
 > /usr/local/lib/libtcl8.5.so(TclFreeObj+0x93)[0xb7e5e6b2]
 > /usr/local/lib/libtcl8.5.so(TclDeleteCompiledLocalVars+0x10e)[0xb7e7a92f]
 > /usr/local/lib/libtcl8.5.so(Tcl_PopCallFrame+0x5b)[0xb7e5ac3b]
 > /usr/local/lib/libtcl8.5.so[0xb7e6a06d]
 > /usr/local/lib/libtcl8.5.so(TclEvalObjvInternal+0x2f8)[0xb7e117d6]
 > /usr/local/lib/libtcl8.5.so[0xb7e38cde]
 > /usr/local/lib/libtcl8.5.so(TclCompEvalObj+0xf2)[0xb7e3fa89]
 > /usr/local/lib/libtcl8.5.so[0xb7e69fbd]
 > /usr/local/lib/libtcl8.5.so(TclEvalObjvInternal+0x2f8)[0xb7e117d6]
 > /usr/local/lib/libtcl8.5.so[0xb7e38cde]
 > (and lots more TclEval recursing)

--
Brent Welch
Software Architect, Panasas Inc
Accelerating Time to Results(tm) with Clustered Storage

www.panasas.com
[email protected]