The counters are incremented when a thread goes to sleep and decremented
either when a thread is woken up by another thread or when the sleep
times out. There existed a race where the sleep count could be decremented
twice resulting in an eventual underflow.
Move the decrementing of the "counters" to the thread initiating the sleep
and thus remedy the problem.
appropriate function, rather than doing a horse-and-buggy
acquire. They now take the mutex type as an arg and can be
used with sleep as well as spin mutexes.
clients have been fixed. (So far as I can tell, all of the user-land
clients of <sys/select.h> do so vacuously, in the expectation that select()
might be declared there.)
SIGXCPU signal, and killing of processes that exceed their allowed run
time until they can play nice with sched_lock. Right now they are just
potentital panics waiting to happen. The printf() has bitten several
people.
not hold sched_lock while calling ttyprintf(). If we are on a serial
console, then ttyprintf() will end up getting the sio lock, resulting in
a lock order violation.
Noticed by: des
o 1.111 imp Sync with FreeBSD.
o 1.110 nonaka Add Roland SCP-55
o 1.109 ichiro add NANOSPEED ROOT-RZ2000 WLAN Card
o 1.108 ichiro add EMTAC A2424i 11Mbps WLAN Card
o 1.107 haya Add IO Data CBIDE2 ata interface card.
o 1.106 jhawk s/NULL}/NULL }/
o 1.105 thorpej " " -> "&sp" in two entries, per Rafal Boni.
o 1.104 thorpej Add SMC 2632W. From Rafal Boni, kern/11775.
o 1.103 drochner add IBM microdrive
o 1.102 soren Typo.
o 1.101 hubertf Add ELSA WaveLAN card & a noname clone(?)
o 1.100 toddpw Socket Comm. PC Card Ethernet, and tidy up naming.
o 1.99 msaitoh MELCO LPC2-TX, Telecom Device TCD-HPC100,
MACNICA ME1-JEIDA
o 1.98 imp Sort BAY into numerical order. (already in FreeBSD)
if_vr: handle the case where vr_encap() returns failure: bust out of the
packet sending loop instead of panicking. Also add some missing
newlines to some printf()s.
if_dc: The miibus_read and miibus_write methods keep swapping in and
out of MII mode by fiddling with CSR6 for cards with MII PHYs.
This is a hack to support the original Macronix 98713 card which
has built-in NWAY that uses an MII-like management interface
even though it uses serial transceivers. Conditionalize this
so that we only do this on 98713 chips, since it does bad things
to genuine tulip chips (and maybe other clones).
{kernel,modules}-reinstall.debug rather than {kernel,modules}-reinstall.
Otherwise, the '.debug' portion of the target is lost, and you end up
reinstalling the non debug version instead of the debug version.
as a replacement for the evil #define NFOO. If 'device npx' is in the
static kernel, a synthetic option '#define DEV_NPX 1' will be available
to stick in an opt_xxx.h file. "#if NNPX > 0" can be replaced with
"#ifdef DEV_NPX" and we can get rid of the overloaded meaning of the
device count mechanism.
