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FWK process might crash when running the 'cpstop -fwflag -driver' command
Symptoms
  • FWK process might crash when running the 'cpstop -fwflag -driver' command (e.g., when following kernel memory leak procedure sk35496).

  • After enabling the generation of core dump files per sk92764, core dump files are generated for FWK process in the /var/log/dump/usermode directory when running the above command.

  • FWK core dump files contain the following stack:

    Core was generated by `fwk       '. 
    Program terminated with signal 11, Segmentation fault. 
    #0  0x... in kiss_stat_server_free_data_buffer (...) at kiss_stat_server.c 
    PID     kiss_stat_server.c: No such file or directory. 
            in kiss_stat_server.c 
    (gdb) bt 
    #0  0x... in kiss_stat_server_free_data_buffer (...) at kiss_stat_server.c 
    #1  0x... in kiss_fini () at kiss_module.c 
    #2  0x... in fw_drv_fini () at fwdrv.c 
    #3  0x... in fwdrv_do_fini () at fwlinux.c
    #4  0x... in fw_userspace_fini () at /local_ckp/xm/cpshared/geyser/B990180009/include/cpuserdrv.c 
    #5  0x... in ?? () 
    #6  0x... in fwk_cleanup () 
    #7  0x... in fwk_dev_fini () 
    #8  0x... in ?? () 
    #9  0x... in ?? () from /opt/CPshrd-R77/lib/libComUtils.so 
    #10 0x... in T_event_mainloop_iter () from /opt/CPshrd-R77/lib/libComUtils.so 
    #11 0x... in T_event_mainloop_e () from /opt/CPshrd-R77/lib/libComUtils.so 
    #12 0x... in fwk_dev_thread_run () 
    #13 0x... in ?? () 
    #14 0x... in main () 
    (gdb)
    
Solution
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