#16736: Kernel Panic on user_unblock_thread Syscall
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Reporter: thosewhowork | Owner: nobody
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: System/Kernel | Version: R1/beta2
Keywords: | Blocked By:
Blocking: | Platform: All
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Hello,
I've noticed that invoking the user_unblock_thread syscall (via
_kern_unblock_thread in libroot.so) can cause a kernel panic for certain
thread_id and status values.
In this specific case, it happened when invoking it for a thread_id
belonging to the launch daemon. The status passed was non-zero and matched
the thread_id. It is also reproducible for other daemons.
After looking at the disassembly of the kernel, it looks like the exact
source line that it's happening on is here:
https://github.com/haiku/haiku/blob/r1beta2/src/system/kernel/thread.cpp#L2984
System Details
Haiku Version: Haiku R1/Beta2
Guest Machine: VMWare Fusion 8.5.3
Host Machine: Mac OS Mojave
I've attached the backtrace and thread details from the kernel debugger.
Thank you for your hard work and please let me know if I can provide any
other details.
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Ticket URL: <https://dev.haiku-os.org/ticket/16736>
Haiku <https://dev.haiku-os.org>
The Haiku operating system.
