When this happens, it doesn't ask me if it should send a crash report.
With the previous and current (57787) First Look clients on Linux, every so often the thing freezes. When it freezes, the shell from which I ran the client has the following error messages:
2007-02-08T04:52:55Z INFO: Decoded 4 msgs this frame!
*** glibc detected *** double free or corruption (fasttop): 0x97e92830 ***
2007-02-08T04:52:55Z WARNING: *** Caught signal 6
2007-02-08T04:52:55Z INFO: remove_marker_file()
2007-02-08T04:52:55Z INFO: Opening stack trace file /home/rknop/.secondlife/logs
/stack_trace.log
2007-02-08T04:52:58Z INFO: Finished generating stack trace.
The stack trace file has:
0: ELF(do_elfio_glibc_backtrace()+0x200) [0x97193c0]
1: ELF(viewer_crash_callback()+0x15f) [0x971fdef]
2: ELF(signal_handlers(int)+0x1f2) [0x970c972]
3: [0xb7f12420]
4: [0xb7f12410]
5: /lib/tls/i686/cmov/libc.so.6(abort+0x109) [0xb74affb9]
6: /lib/tls/i686/cmov/libc.so.6 [0xb74e3c8a]
7: /lib/tls/i686/cmov/libc.so.6 [0xb74eb51f]
8: /lib/tls/i686/cmov/libc.so.6(__libc_free+0x82) [0xb74eb5c2]
9: /usr/local/SecondLife_FirstLook/lib/libstdc++.so.6(_ZdlPv+0x21) [0xb768f
8b1]
10: /usr/local/SecondLife_FirstLook/lib/libstdc++.so.6(_ZNSs4_Rep10_M_destro
yERKSaIcE+0x1d) [0xb766e8f3]
11: /usr/local/SecondLife_FirstLook/lib/libstdc++.so.6(_ZNSs6assignERKSs+0xa
3) [0xb766ff13]
12: ELF(LLImageBase::allocateData(int)+0x55) [0x9820655]
13: ELF(LLImageRaw::allocateData(int)+0x14) [0x98212e4]
14: ELF(LLImageRaw::LLImageRaw(unsigned short, unsigned short, signed char)+
0x4a) [0x981b03a]
15: ELF(LLSurface::generateWaterTexture(float, float, float, float)+0xc7) [0
x8fa3c27]
16: ELF(LLSurfacePatch::updateTexture()+0x2d7) [0x8fbc5e7]
17: ELF(LLSurface::idleUpdate(float)+0xaa) [0x8fa0aba]
18: ELF(LLViewerRegion::idleUpdate(float)+0x1b) [0x9409aab]
19: ELF(LLWorld::updateRegions(float)+0x6b) [0x9669e7b]
20: ELF(idle()+0x16dd) [0x971449d]
21: ELF(main_loop()+0x31c) [0x9720dec]
22: ELF(main+0x2e3e) [0x9728bbe]
23: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xc

24: ELF(__gxx_personality_v0@@CXXABI_1.3+0x1c1) [0x8056c41]
Hope this helps!