[pf4freebsd] if_fxp.c.patch
Dennis Berger
db at nipsi.de
Wed Sep 15 21:07:04 PDT 2004
Hi,
today I tried the fxp driver patch and run into a kernelpanic if altq is
enabled.
I guess it's something strange with the locking cause the debugger stops at
fxp_start_body();
this is exactly the point where a lock is needed, or whatever there
happens...
pyun discovered similar problems months ago, he fixed it by modifying
the LOCK macro.
to something like this
#define MY_LOCK do { \
if(!mtx_owned(&lock) \
mtx_lock(&lock); \
} while(0)
and
#define MY_UNLOCK do { \
if(mtx_owned(&lock)); \
mtx_unlock(&lock); \
} while(0)
I don't know why he have to check if the lock is held...
greets Dennis
More information about the freebsd-pf
mailing list