[Mono-bugs] [Bug 384176] New: SIGSEGV while executing mod_mono_server2.exe

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Sun Apr 27 07:07:35 EDT 2008


           Summary: SIGSEGV while executing mod_mono_server2.exe
           Product: Mono: Runtime
           Version: 1.9.0
          Platform: i686
        OS/Version: openSUSE 10.3
            Status: NEW
          Severity: Major
          Priority: P5 - None
         Component: GC
        AssignedTo: lupus at novell.com
        ReportedBy: rook at roo.k.pl
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---

I get random SIGSEGV while executing mod_mono_server2.exe under heavier load.

I used gdb to gather some information:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb5280b90 (LWP 31208)]
0x08139d72 in return_freelists (fl=0x47d020, gfl=0x8221488) at
229                 for (; (word)q >= HBLKSIZE; qptr = &(obj_link(q)), q =

#0  0x08139d72 in return_freelists (fl=0x47d020, gfl=0x8221488) at
#1  0x08139db7 in GC_destroy_thread_local (p=0x47d000) at pthread_support.c:308
#2  0x0813a0de in GC_thread_deregister_foreign (data=0x47d000) at
#3  0xb7ec0dd3 in __nptl_deallocate_tsd () from /lib/libpthread.so.0
#4  0xb7ec11a0 in start_thread () from /lib/libpthread.so.0
#5  0xb7e2702e in clone () from /lib/libc.so.6

I have a vanilla openSUSE 10.3 with mono 1.9.1
The system is Dell PowerEdge Intel Dual Core Xeon 3040

I have the same app/configuration running on two other older systems (FC4 and
openSUSE 10.0) without problems. My *UNEDUCATED* guess would be it has
something to do with glibc version: glibc 2.6.1-18.3 on the problematic
machine, glibc-2.3.5-40 and glibc-2.3.6-3 on the stable two.

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