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Re: Process hangs system on exit

Subject: Re: Process hangs system on exit
From: "Ivan Shcheklein" <email@hidden>
Date: Wed, 12 Mar 2008 14:13:38 +0300
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Some more details.

Below is the result of sampling of "everything" (I can't sample one process since Shark stops sampling before "exit" call):
Note that "hw_rem_map" takes apprx. 2 seconds during which system absolutely hangs.

99.6% 99.6% mach_kernel ----- hw_rem_map
0.0% 99.6% mach_kernel ------- mapping_remove
0.0% 99.6% mach_kernel --------- pmap_remove
0.0% 99.6% mach_kernel ----------- vm_map_submap_pmap_clean
0.0% 99.6% mach_kernel ------------- vm_map_remove
0.0% 99.6% mach_kernel --------------- task_terminate_internal
0.0% 99.6% mach_kernel ----------------- exit1
0.0% 99.6% mach_kernel ------------------- exit
0.0% 99.6% mach_kernel --------------------- unix_syscall
0.0% 99.6% mach_kernel ----------------------- shandler
0.0% 0.0% mach_kernel mapping_remove
0.0% 0.0% mach_kernel pmap_remove
0.0% 0.0% mach_kernel vm_map_submap_pmap_clean

So, can it be a bug in "hw_rem_map" or something else?

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