Keep following access permissions:
APX AP Kernel User
1 01 R N
1 10 R R
0 01 R/W N
0 11 R/W R/W
Avoid using reserved in ARMv6 APX|AP settings:
- In case of unprivileged (user) access without permission to write,
the access permission bits were being set to reserved for ARMv6
(but valid for ARMv7) value of APX|AP = 111.
Fix-up faulting userland accesses properly:
- Wrong condition statement in pmap_fault_fixup() caused that
any genuine, unprivileged access was being fixed-up instead of
just skip doing anything and return. Staring from now we ensure
proper reaction for illicit user accesses.
L2_S_PROT_R and L2_S_PROT_U names might be misleading as they do not
reflect real permission levels. It will be clarified in following
patches (switch to AP[2:1] permissions model).
Obtained from: Semihalf
- On ARMADAXP B0 (GP development board) we are not able to use PCI due to
whole 32-bit address space used by 4GB of RAM memory.
- Change is required to destroy unnecessary window to free address space
for PCI and other devices
- Fix offset value for SDRAM decoding windows
Obtained from: Semihalf
to driver specific files.
- window initialization is done during device attach
- CESA TDMA decoding windows values are set based on DTS,
not copied from CPU registers
- remove unnecessary virtual mapping
- update dts file
Obtained from: Semihalf
- Allow DMA addresses anywhere in the lower 4GB; Envy24HT has a 32-bit DMA
engine, not 28-bit like Envy24.
- Mark interrupt handler as MPSAFE, seems to be correctly synchronized.
PR: kern/152378
Submitted by: Jason Harmening <jason.harmening@gmail.com>
MFC after: 1 month
used previously caused probe failure on platforms where char is unsigned
(e.g. ARM), as mftrecsz can be negative.
Submitted by: Ilya Bakulin <ilya@bakulin.de>
MFC after: 2 weeks
change the way that these functions ascend the tree when the search for a
matching leaf fails at an interior node. Rather than returning to the root
of the tree and repeating the lookup with an updated key, maintain a stack
of interior nodes that were visited during the descent and use that stack
to resume the lookup at the closest ancestor that might have a matching
descendant.
Sponsored by: EMC / Isilon Storage Division
Reviewed by: attilio
Tested by: pho
fork_trampoline (thread entry point) assembler routines, because it's
not possible to unwind beyond those points.
Also insert STOP_UNWINDING in the exception_exit routine, to prevent an
unwind-loop at that point. This is just a stopgap until we get around
to instrumenting all assembler functions with proper unwind metadata.
exit the loop until after printing info about the current frame. Also,
if executing the unwind function for a frame doesn't change the values of
any registers, log that and exit the loop rather than looping endlessly.
Address. Although KAME implementation used FF02:0:0:0:0:2::/96 based on
older versions of draft-ietf-ipngwg-icmp-name-lookup, it has been changed
in RFC 4620.
The kernel always joins the /104-prefixed address, and additionally does
/96-prefixed one only when net.inet6.icmp6.nodeinfo_oldmcprefix=1.
The default value of the sysctl is 1.
ping6(8) -N flag now uses /104-prefixed one. When this flag is specified
twice, it uses /96-prefixed one instead.
Reviewed by: ume
Based on work by: Thomas Scheffler
PR: conf/174957
MFC after: 2 weeks
- Use the absolute pathname for ip6addrctl.
- Use "install" instead of "add" to reduce the number of invocations.
Reported by: Tatsuki Makino [*]
PR: conf/175006 [*]
MFC after: 1 week
to cdevpriv(9). This commit changes the semantic of mount_smbfs
in userland as well, which now passes file descriptor in order to
to mount a specific filesystem istance.
Reviewed by: attilio, ed
Tested by: martymac
just "when the queue is busy."
After talking with the MAC team, it turns out that the linked list
implementation sometimes will not accept a TxDP update and will
instead re-read the link pointer. So even if the hardware has
finished transmitting a chain and has hit EOL/VEOL, it may still
re-read the link pointer to begin transmitting again.
So, always set ATH_BUF_BUSY on the last buffer in the chain (to
mark the last descriptor as the holding descriptor) and never
blank the axq_link pointer.
Tested:
* AR5416, STA mode
TODO:
* much more thorough testing with the pre-11n NICs, just to verify
that they behave the same way.
* test TDMA on the 11n and non-11n hardware.
kernel-based POSIX semaphore descriptors to userland via procstat(1) and
fstat(1):
- Change sem file descriptors to track the pathname they are associated
with and add a ksem_info() method to copy the path out to a
caller-supplied buffer.
- Use the fo_stat() method of shared memory objects and ksem_info() to
export the path, mode, and value of a semaphore via struct kinfo_file.
- Add a struct semstat to the libprocstat(3) interface along with a
procstat_get_sem_info() to export the mode and value of a semaphore.
- Teach fstat about semaphores and to display their path, mode, and value.
MFC after: 2 weeks
This test case sometimes fails because of an EINTR-related race condition.
Fixing this race condition likely requires an extra system call per byte,
which would make the read builtin even slower than it already is, or very
complicated trickery. Therefore, remove the test case for now.
