disk is first probed. dagetcapacity is called whenever the disk is opened from
geom via d_open(), a zero sector size will cause geom to panic later on.
- New region: Asia/Novokuznetsk
- Kemerovo oblast' (Kemerovo region) in Russia will change current
time zone on 29 March 2010
- Add historical data for Hongkong 1941 - 1980
- Syria will go to winter time in the last weekend of October 2009.
MFC after: 2 days
Most of the pieces came from Marius- correct settings for channels
and resource management. The one piece missing was that you cannot
for SBus cards replace 32 bit operations with A64 operations- not
supported.
Submitted by: marius
MFC after: 3 days
reacquiring driver lock in Rx handler. re(4) drops a driver lock
before passing received frame to upper stack and reacquire the
lock. During the time window ioctl calls could be executed and if
the ioctl was interface down request, driver will stop the
controller and free allocated mbufs. After that when driver comes
back to Rx handler again it does not know what was happend so it
could access free mbufs which in turn cause panic.
Reported by: Norbert Papke < npapk <> acm dot org >
Tested by: Norbert Papke < npapk <> acm dot org >
from tuning(7). One of the descriptions references tuning(7) because
it is too complex to adequatly describe here (it is not a simple
boolean sysctl) and users should be warned to that.
Reviewed by: alc, kib
Approved by: gnn (mentor)
This will prevent that the script hangs during startup, which
could cause annoying effects after rebooting for example.
PR: kern/139422
Submitted by: Andrey Groshev <greenx at yartv dot ru>
Approved by: imp (mentor, implicit)
MFC after: 3 days
Facilitated by: Snow B.V.
- Don't write actual length if the actual length pointer is NULL [2]
- correct Linux Compatibility error codes for short isochronous IN transfers
and make status field signed.
Submitted by: Leunam Elebek [1], Manuel Gebele [2]
Fix reference counting bug, when device unreferenced before then
invalidated. To do it, do not handle validity flag as another
reference, but explicitly modify reference count each time flag is
modified.
Discovered by: thompsa
files search path and thus -isystem is sufficient. -iprefix is
meant to do something entirely different.
Approved by: ed (mentor)
OKed by: ru, kan
Tested by: make universe
o Move all code into a single file for easier maintenance.
o Use a single global lock to avoid having to handle either
multiple locks or race conditions.
o Make sure to disable the high FP registers after saving
or dropping them.
o use msleep() to wait for the other CPU to save the high
FP registers.
This change fixes the high FP inconsistency panics.
A single global lock typically serializes too much, which may
be noticable when a lot of threads use the high FP registers,
but in that case it's probably better to switch the high FP
context synchronuously. Put differently: cpu_switch() should
switch the high FP registers if the incoming and outgoing
threads both use the high FP registers.
the current value of its argument before atomically replacing it, which
could occasionally return the wrong value on an SMP system. This resulted
in user mutex operations hanging when using threaded applications.
version of this file. When a process forks, any wired pages are immediately
copied because copy-on-write is not supported for wired pages. In other
words, the child process is given its own private copy of each wired page
from its parent's address space. Unfortunately, to date, these copied pages
have been mapped into the child's address space with the wrong permissions,
typically VM_PROT_ALL. This change corrects the permissions.
Reviewed by: kib
do support 64bit addresses, the current SCRIPTS code supports only 32bit
addresses causing data corruption for buffer addresses >4GB. This problem
affects 64bit machines with more than 4GB RAM or amd64 with 4GB and
memory hole remapping.
Work-around this problem with a bus_dma tag that requests bounce-buffers
for addresses >4GB. This causes some overhead, but given the maximum SCSI
bus speed of 160MB/s compared, the effect should hardly be noticeable.
The problem was reported by Mike Watters (mike at mwatters net) who also
verified that this fix cures the problem.
Since this change is a NOOP on systems with less than 4GB RAM and fixes
data corruption (in RAM and on disk) on systems with more than 4GB, I hope
that this change is accepted for 8.0.
MFC after: 3 days (pending approval)
- Remove most of direct relations between ATA(4) peripherial and controller
levels. It makes logic more transparent and is a mandatory step to wrap
ATA(4) controller level into ATA-native CAM SIM.
- Tune AHCI and SATA2 SiI drivers memory allocation a bit to allow bigger
I/O transaction sizes without additional cost.
- Reduce code duplication in ATA XPT and PMP driver.
- Move PIO size setting from ada driver to ATA XPT. It is XPT business
to negotiate transfer details. ada driver is now stateless.
- Report PIO size to SIM. It is required for correct PATA SIM operation.
- Tune PMP scan timings. It workarounds some problems with SiI.
- If reset hapens during PMP initialization - restart it.
- Introduce early-initialized periph drivers, which are used during initial
scan process. Use it for xpt, probe, aprobe and pmp. It gives pmp chance
to finish scan before mountroot and numerate devices in right order.
There is no need to use the lower 4 bits of the unit number to store the
device type number. Just use 0 and 1 to distinguish them. devfs also
guarantees that there can never be an open call on a device that has a
unit number different to 0 and 1, so there is no need to check for this
in open().
d_uid, d_gid and d_mode are unused, because permissions are stored in
cdevpriv nowadays. d_kind doesn't seem to be used at all. We no longer
keep a list of cdevsw's, so d_list is also unused.
uid_t and gid_t are 32 bits, but mode_t is 16 bits, Because of alignment
constraints of d_kind, we can safely turn it into three 32-bit integers.
d_kind and d_list is equal in size to three pointers.
Discussed with: kib
Ensure target/lun passed from user-level supported on this bus.
Scanning unsupported IDs causes different issues from duplicate
devices to system crash.
zfs_access() instead of vaccess() in this case as well.
- If VADMIN is specified with another V* flag (unlikely) call both
zfs_access() and vaccess() after spliting V* flags.
This fixes "dirtying snapshot!" panic.
PR: kern/139806
Reported by: Carl Chave <carl@chave.us>
In co-operation with: jh
MFC after: 3 days
input to be in non-buffering mode so that input lines are logged
as they occur rather than being saved up until a buffer's worth of
input has been logged.
- Don't bother to assign vb until we know we have enough space
- Add variables for sx2, sy2, dx2, dy2 so that these aren't
calculated over and over, also reduce chance of errors.
- Use switch to assign color/format
MFC after: 3 days
