might be enqueued on a sleep queue but not be asleep when the timeout fires
if it is blocked on a lock trying to check for pending signals before going
to sleep. In the case of fixing up the TDF_TIMEOUT race, however, the
thread must be marked asleep.
Reported by: kan (the bogus one)
mini-layer. I don't have time to bing it forward into the GEOM world, and
no one else has stepped forward to claim it. It'll be in the Attic for safe
keeping for now.
Use kern_open() to implement creat() rather than taking the long route
through open(). Mark creat as MPSAFE.
While I'm at it, mark nosys() (syscall 0) as MPSAFE, for all the
difference it will make.
set it to avoid the need for a bunch of code that tests whether or
not the lock member is set to REQ_WIRED in order to determine which
length member should be used.
Fix another bug in the oldlen return value code.
Fix a potential wired memory leak if a sysctl handler uses
sysctl_wire_old_buffer() and returns an EAGAIN error to trigger
a retry.
If vslock() returns ENOMEM, sysctl_wire_old_buffer() should set
wiredlen to zero and return zero (success) so that the handler will
operate according to sysctl(3):
The size of the buffer is given by the location specified by
oldlenp before the call, and that location gives the amount
of data copied after a successful call and after a call that
returns with the error code ENOMEM.
The handler will return an ENOMEM error because the zero length
buffer will overflow.
ptrace_set_pc(), and cpu_ptrace() so that those functions are free to
acquire Giant, sleep, etc. We already do a PHOLD/PRELE around them so
that it is safe to sleep inside of these routines if necessary. This
allows ptrace() to be marked MP safe again as it no longer triggers lock
order reversals on Alpha.
Tested by: wilko
snprintf() and vsnprintf() in FreeBSD kernel land).
This is needed by the Intel Centrino 2200BG driver. Unfortunately, this
driver still doesn't work right with Project Evil even with this tweak,
but I'm unable to diagnose the problem since I don't have access to a
sample card.
This adds support for cardbus ATA/SATA controllers. I get roughly the
same transfer speeds as on true PCI controllers. Nice to be able to add
a couble of "real" disks to a laptop :)
add tapmtx, which protects globale variables.
Notes:
- The EBUSY check in MOD_UNLOAD may be subject to a race. Moving the
event handler unregister inside the mutex grab may prevent that race.
- Locking of global variables safely is now possible because tapclones
is only modified when the module is loading or unloading, thanks to
phk's recent chang to clone_setup().
- softc locking to follow.
255; USB keychains exist that use 256 as the number of heads. This
check has also been removed in Darwin (along with most of the other
head/sector sanity checks).
Only cy, bs and wd in the tree still use it. I have a replacement for
cy that I need to test on ISA and PCI cards. bs and wd are pc98 only
drivers that appear to no longer be necessary. I'll be removing them
when I hear back from the pc98 people.
this driver is being retired. Remove it from the tree. If someone
wants to update it to the latest APIs and can test the hardware, it
can return to the tree.
