to invalidate memory chunk that starts or ends in the middle of
cache line.
This was responsible for one half of the problem preventing umass
to work reliably on some MIPS32 platforms. USBng needs to stop
sharing cache lines between DMA-able memory and other structures
to cure the other half.
Discussed with: imp, gonzo
format is higher than 6-bit instead of relying VGA compatibility flag.
This fixes palette problem of NVIDIA GeForce 6600. Reduce code differences
between palette load/save functions while we are here.
Tested by: danfe
Without this patch it was possible for a different thread that calls
nfs_asyncio() to snitch a newly created nfsiod thread that was
intended for another caller of nfs_asyncio(), because the nfs_iod_mtx
mutex was unlocked while the new nfsiod thread was created. This patch
labels the newly created nfsiod, so that it is not taken by another
caller of nfs_asyncio(). This is believed to fix the problem reported
on the freebsd-stable email list under the subject:
FreeBSD NFS client/Linux NFS server issue.
Tested by: to DOT my DOT trociny AT gmail DOT com
Reviewed by: jhb
MFC after: 2 weeks
Also, account for a quirk of AMD/ATI HPET which reports number of timers
instead of id of the last timer as manadated by the specification.
Currently this has no effect on functionality but in the future we may
make actual use of the HPET timers, not only of its timecounter.
MFC after: 2 weeks
igb now has a queue notion that has a single interrupt
with an RX/TX pair, this will reduce the total interrupts
seen on a system. Both em and igb have a new watchdog
method. igb has fixes from Pyun Yong-Hyeon that have
improved stability, thank you :)
I wish to MFC this for 7.3 asap, please test if able.
Limit early revisions from 6Gb/s to 3Gb/s by default, or they negotiate
only 1.5Gbps, when 3Gb/s devices connected.
Add dummy driver for PATA part of these controllers, preventing generic
driver attach them. It causes system freeze when SATA controller used after
PATA was touched.
locks up in make buildworld.
You need to follow the mips wiki for building
the nfs partition and setup things to mount there
(in the conf and in your bootp setup).
the intention of having two ttys pointing to the same cfe console device was.
Also we were not initializing the output[] array passed in as input to
tty_makedev() so one name of the ttys was garbage.
Fix the code that calls cfe_write() to deal with the case where only a partial
buffer is written out.
cfe_cngetc() needs to return if there is no character available as input.
If we don't do this then the cfe_timeout() function will spin forever
because cfe_cngetc() will only ever return if there is valid input.
Approved by: imp (mentor)
This is a workaround for the fact that the CFE is compiled as a 64-bit
application and therefore sets the SR_KX bit every time we call into
it (for e.g. console).
A TLB miss for any address above 0xc0000000 with the SR_KX bit set will
end up at the XTLB exception vector. We workaround this by copying the
standard TLB handler at the XTLB exception vector.
Approved by: imp (mentor)
through fork_trampoline.
This was caused because we were clearing the SR_INT_IE and setting
SR_EXL bits of the status register at the same time. This meant
that if an interrupt happened while this MTC0 was making its way
through the pipeline the exception processing would see the
status register with SR_EXL bit set. This in turn would mean that
the COP_0_EXC_PC would not be updated so the return from exception
would be to an incorrect address.
It is easy to verify this fix by a program that forks in a loop
and the child just exits:
while (1) {
pid_t pid = vfork();
if (pid == 0)
_exit(0);
if (pid != -1)
waitpid(pid, NULL, 0);
}
Also remove two instances where we set SR_EXL bit gratuitously in exception.S.
Approved by: imp (mentor)
obio. Take advantage of the fact that obio only really supports uart
at the moment to use the uart bus tag always for IOPORT allocations.
# this needs to be redone to conform to FreeBSD standards and allow for
# additional drivers for SoC hardware to attach
in the pcb at the td_lock offset, rather than in the struct thread at
the td_lock offset. And we were storing a pointer to the old thread
rather than to the mutex. Why this didn't always kill us, I'll never
know.
Fix an obsolete comment and update the prototype in the comments.
Also note what variables are in what registers since this function is
a little complex...
neel@ found this problem and proposed this fix. This cures a number
of different problem reports out there, and gets us booting octeon to
the login prompt...
Submitted by: neel@
Reviewed by: rrs@, gonzo@
where the type is 32-bit. ZFS can handle 64-bit timestamp internally
but zfs_setattr() would check if the time value can fit, we change the
checking macros to match 64-bit timestamp if the platform supports it.
This change has some downsides like, while you can import zfs on 32-bit
platforms, the timestamp would overflow if they are out of the range.
This fixes the Y2.038K issue on platforms using 64-bit timestamps.
Reviewed by: pjd
MFC after: 1 month
symbols resolving in DDB
- When zeroing .bss/.sbss do not round end address to page boundary,
it's not neccessary and might destroy data pased by trampoline or
boot loader
ifmultiaddr structures' reference to the parent interface, unless the parent
interface is really detaching. While here, program only link layer multicast
filters to a wlan's hardware parent interface.
PR: kern/142391, kern/142392
Reviewed by: sam, rpaolo, bms
MFC after: 1 week
