on "i386". Doing it in the compiler is deemed to be less fragile then
attempting to provide a default -march setting via bsd.cpu.mk. FreeBSD
itself has not supported plain 386 CPUs since 5.x.
Suggested by: kan
Requested by: rdivacky
MFC after: 1 month
the memory or D-cache, depending on the semantics of the platform.
vm_sync_icache() is basically a wrapper around pmap_sync_icache(),
that translates the vm_map_t argumument to pmap_t.
o Introduce pmap_sync_icache() to all PMAP implementation. For powerpc
it replaces the pmap_page_executable() function, added to solve
the I-cache problem in uiomove_fromphys().
o In proc_rwmem() call vm_sync_icache() when writing to a page that
has execute permissions. This assures that when breakpoints are
written, the I-cache will be coherent and the process will actually
hit the breakpoint.
o This also fixes the Book-E PMAP implementation that was missing
necessary locking while trying to deal with the I-cache coherency
in pmap_enter() (read: mmu_booke_enter_locked).
The key property of this change is that the I-cache is made coherent
*after* writes have been done. Doing it in the PMAP layer when adding
or changing a mapping means that the I-cache is made coherent *before*
any writes happen. The difference is key when the I-cache prefetches.
Don't clobber *p with '\0' when testing whether it has the value of 'F'.
Just use the semantics of strtof() properly. If it returns p, we know
that it parsed the string until it reached 'C' or 'F'.
The code has not changed since it has been imported (r161951, Sep 3,
2006).
Submitted by: Alexandre Perrin <kaworu@kaworu.ch>
MFC after: 1 week
Separate CAM_DEV_IDENTIFY_DATA_VALID flag from CAM_DEV_INQUIRY_DATA_VALID.
Add workaround for very old devices without support for mode setting.
Add some PATA bus scanning support.
Remove some SCSIsms.
Add support for PIO-only devices.
Fix maxio values and 256 sectors transactions for 28bits commands.
Implement periodic ordered commands insertion, sames as da driver does.
Remove some SCSIsms.
splitting in bce(4) instead of (ab)using ZERO_COPY_SOCKETS that was not
propagated into if_bce.c anyway. It is disabled by default.
Approved by: davidch
MFC after: 3 days
On error, freeze device queue, to allow periph driver to do proper recovery.
Freeze SIM queue only in some cases, when it is needed to protect SIM.
Implement better command timeout detection logic for non-queued commands.
This fixes false positives when command with short timeout waiting for the
long one. For example, when hald tastes CD during burning process.
Read and clear SERR register on interrupt.
instead of POSTREAD: the hardware do not touch this memory (CPU
updates it). It is already synchronized as PREWRITE after the
processing is done.
- Synchronize RX return ring memory in rx_eof. This is needed
as the deviced updates this memory when receives packets.
- Decouple the synchronization of BGE status block in the interrupt
service routine: perfrom PREREAD synchronization only all accesses
to this block are finished. This seems to be more natural.
Reviewed by: yongari, marius
MFC after: 2 weeks
has been yanked, this works around a cam recounting bug when
CAM_DEV_UNCONFIGURED is set late in the detach. In certain conditions the
reference to the XPT device would not be released which would cause the usb
explore thread to sleep forever on "simfree", preventing any new usb devices to
be found/ejected on the bus.
This is intended to be a quick workaround to the problem without touching CAM
so it can be merged to 8.0.
Suggested by: mav
MFC after: 3 days
during system initialization time. Since the flow-table is
designed to maintain per CPU flow cache, the existing code
did not check whether "smp_started" is true before calling
sched_bind() and sched_unbind(), which triggers a page fault.
Reviewed by: jeff
MFC after: immediately
by checking PCI config space when the NIC is not
transmitting. Previously, a h/w fault would not have been
detected if the NIC was down, or handling an RX only
workload.
is compared against the entry expiration time value (that was set based
on time_second) to check if the current time is larger than the set
expiration time. Due to the +/- timer granularity value, the comparison
returns false, causing the alternative code to be executed. The
alternative code path freed the memory without removing that entry
from the table list, causing a use-after-free bug.
Reviewed by: discussed with kmacy
MFC after: immediately
Verified by: rnoland, yongari
- Introduce new SI_SUB_RANDOM point in boot sequence to make it
clear from where one may start using random(9). It should be as
early as possible, so place it just after SI_SUB_CPU where we
have some randomness on most platforms via get_cyclecount().
- Move stack protector initialization to be after SI_SUB_RANDOM
as before this point we have no randomness at all. This fixes
stack protector to actually protect stack with some random guard
value instead of a well-known one.
Note that this patch doesn't try to address arc4random(9) issues.
With current code, it will be implicitly seeded by stack protector
and hence will get the same entropy as random(9). It will be
securely reseeded once /dev/random is feeded by some entropy from
userland.
Submitted by: Maxim Dounin <mdounin@mdounin.ru>
MFC after: 3 days
support unloading. It's not trivial to implement newnfslock unloading so
for now just admit that unloading is unsupported and refuse to attempt
unload in all nfscl module event handlers.
Reviewed by: rmacklem
Approved by: trasz (mentor)
be called after ncl_uninit() when unloading the nfscl module because
ncl_uninit() uses ncl_iod_mutex which is destroyed in nfscl_modevent().
Reviewed by: rmacklem
Approved by: trasz (mentor)
In r198272 I didn't notice that watchdog(8) and watchdogd(8)
are different things and instead of fixing watchdogd markup
I simply nuked the line.
Noticed by: emaste
Pointy hat to: avg
- Somoa has not moved to DST this year (comment only)
- Bangladesh stays on DST for now.
- Pakistan went back to standard time in 1 October 2009
MFC after: 1 week
the race where interrupt thread can complete the request for which
timeout has fired and while mpt_timeout has blocked on mpt_lock.
Do a best effort to keep 4.x ang Giant-locked configurartions
compiling still.
Reported by: ups
Reviewed by: scottl
