#14355: Unloading/reloading an atheroswifi device ends in vm_page_fault KDL
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Reporter: v.vill | Owner: waddlesplash
Type: bug | Status: new
Priority: normal | Milestone: Unscheduled
Component: Drivers/Network/atheroswifi | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking: 14411
Has a Patch: 0 | Platform: All
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Comment (by waddlesplash):
OK, so, [http://xref.plausible.coop/source/xref/haiku/src/add-
ons/kernel/drivers/network/wlan/atheroswifi/dev/ath/if_ath.c#2740
ath_reset_grablock] just calls "pause", which is defined as a macro
[http://xref.plausible.coop/source/xref/haiku/src/libs/compat/freebsd11_network/compat/sys/systm.h#96
here].
[http://xref.plausible.coop/source/xref/haiku/src/libs/compat/freebsd11_network/synch.c#42
_pause] then calls
[http://xref.plausible.coop/source/xref/haiku/src/libs/compat/freebsd11_network/compat/sys/systm.h#97
tsleep], also a macro, which calls msleep but with a NULL mutex.
[http://xref.plausible.coop/source/xref/haiku/src/libs/compat/freebsd11_network/synch.c#16
msleep] apparently tries to unconditionally lock or unlock the mutex,
which seems pretty strange. I need to look at what FreeBSD does here.
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Ticket URL: <https://dev.haiku-os.org/ticket/14355#comment:7>
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