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kern/55354: TSAN reportedly crashes the kernel

>Number:         55354
>Category:       kern
>Synopsis:       TSAN reportedly crashes the kernel
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jun 06 23:05:00 +0000 2020
>Originator:     Andrew Doran
>Release:        NetBSD-current
	According to Kamil tsan can crash the kernel.
 ./ -j8 -N0 -U -u -V MAKECONF=/dev/null -V MKCOMPAT=no -V                                                                                                                                                                
MKDEBUGLIB=yes -V MKDEBUG=yes -V MKSANITIZER=yes -V USE_SANITIZER=thread                                                                                                                                                         
-V MKLLVM=yes -V MKGCC=no -V HAVE_LLVM=yes -O /public/netbsd.fuzzer                                                                                                                                                              
Null mount /dev /dev/pts /tmp and chroot into it.                                                                                                                                                                                
Try to run some basic applications and see creation unkillable                                                                                                                                                                   
processes. Unless that was fixed by an accident/indirectly, you will                                                                                                                                                             
quickly reproduce it.     

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