Add an SDT provider for "vnet"s along with probes for vnet_alloc
and vnet_destroy.
Use the line number rather than NULL as dummy argument.
Note: the fbt provider does not reliably provide :return probes
(depending on optimization levels used at compile time) making
it unusable for scripts to generate complete call-traces with
well defined boundaries over allocations or destructions of
virtual network stacks.
Properly free resources when destroying the TCP hostcache while
tearing down a network stack (in the VIMAGE jail+vnet case).
For that break out the logic from tcp_hc_purge() into an internal
function we can call from both, the sysctl handler and the
tcp_hc_destroy().
Reviewed by: silby, lstewart
Provide default implementation for VOP_ACCESS(9), so that filesystems which
want to provide VOP_ACCESSX(9) don't have to implement both. Note that
this commit makes implementation of either of these two mandatory.
Reviewed by: kib
To avoid hardcoding further kernel configuration names for
make universe, split the logic into two parts:
- 1st to build worlds and generate kernel configs like LINT.
- 2nd to build kernels for a given TARGET architecture correctly
finding all newly generated configs, not knowing anything about
LINT anymore.
MFC rr201960:
Use uname -m [1] and rename BUILD_ARCH to XMACHINE[2].
Submitted by: nyan[1], imp[2]
MFC r202095:
Rather than using an extra variable, only call uname if really needed and
then directly assign the result.
Submitted by: jmallett
Generate a second LINT configuration for i386 and amd64 in
sys/conf/makeLINT.mk, which includes LINT and sets options VIMAGE
so that we will have VIMAGE LINT builds. For now only do it for
those two architectures to avoid massive universe times for archs,
where people will less likely use VIMAGE or not at all.
In sys/<arch>/conf/Makefile set TARGET to <arch>. That allows
sys/conf/makeLINT.mk to only do certain things for certain
architectures.
Note that neither arm nor mips have the Makefile there, thus
essentially not (yet) supporting LINT. This would enable them
do add special treatment to sys/conf/makeLINT.mk as well chosing
one of the many configurations as LINT.
Change DDB show prison:
- name some columns more closely to the user space variables,
as we do for host.* or allow.* (in the listing) already.
- print pr_childmax (children.max).
- prefix hex values with 0x.
Fix array overflow. This routine is only called from procfs,
which is not mounted by default, and I've been unable to trigger
a panic without this fix applied anyway.
Reviewed by: kib, cperciva
Use the same policy for rejecting / not-reject ACPI tables with incorrect
checksums as the base acpi(4) driver. This fixes a problem where the MADT
parser would reject the MADT table during early boot causing the MP Table
to be, but then the acpi(4) driver would attach and use non-SMP interrupt
routing.
- Extend the machine check record structure to include several fields useful
for parsing model-specific and other fields in machine check events
including the global machine check capabilities and status registers,
CPU identification, and the FreeBSD CPU ID.
- Report these added fields in the console log of a machine check so that
a record structure can be reconstituted from the console messages.
- Parse new architectural errors including memory controller errors.
The rmt client in GNU cpio could have a heap overflow when a malicious
remote tape service returns deliberately crafted packets containing
more data than requested.
Fix this by checking the returned amount of data and bail out when it
is more than what we requested.
PR: gnu/145010
Submitted by: naddy
Reviewed by: imp
Security: CVE-2010-0624
Print out the family and model from the cpu_id. This is especially useful
given the advent of the extended family and extended model fields. The
values are printed in hex to match their common usage in documentation.
Add a "-x" option to chown(8)/chgrp(1) similar to the same option in
du(1), cp(1) etc, to prevent the crossing of mountpoints whilst using the
commands recursively.
PR: bin/130855
Submitted by: keramida
Make script(1) a little less broken.
Close the file descriptor to the TTY. There is no reason why the parent
process should keep track of the descriptor. This ensures that the
application inside properly drains the TTY during exit(2).
Reported by: alfred
It seems PCI_OUR_REG_[1-5] registers are not mapped on PCI
configuration space on Yukon Ultra(88E8056) such that accesses to
these registers were NOPs which in turn make msk(4) instable on
this controller. Use indirect access method to access
PCI_OUR_REG_[1-5] registers. This should fix a long standing
instability bug which prevented msk(4) working on Yukon Ultra.
Special thanks to koitsu who gave me remote access to his system.
PR: kern/114631, kern/116853
r204975:
Enable hardware fixes for BCM5704 B0 as recommended by data sheet.
r204978:
Set maximum read byte count to 2048 for PCI-X BCM5703/5704 devices.
Also disable relaxed ordering as recommended by data sheet for
PCI-X devices. For PCI-X BCM5704, set maximum outstanding split
transactions to 0 as indicated by data sheet.
For BCM5703 in PCI-X mode, DMA read watermark should be less than
or equal to maximum read byte count configuration. Enforce this
limitation in DMA read watermark configuration.
r204979:
Fix typo in r204975.
r204981:
Fix typo in r204978.
Remove taskqueue based interrupt handling. After r204541 msk(4)
does not generate excessive interrupts any more so we don't need
to have two copies of interrupt handler.
While I'm here remove two STAT_PUT_IDX register accesses in LE
status event handler. After r204539 msk(4) always sync status LEs
so there is no need to resort to reading STAT_PUT_IDX register to
know the end of status LE processing. Just trust status LE's
ownership bit.
Implement rudimentary interrupt moderation with programmable
countdown timer register. The timer resolution may vary among
controllers but the value would be represented by core clock
cycles. msk(4) will automatically computes number of required clock
cycles from given micro-seconds unit.
The default interrupt holdoff timer value is 100us which will
ensure less than 10k interrupts under load. The timer value can be
changed with dev.mskc.0.int_holdoff sysctl node.
Note, the interrupt moderation is shared resource on dual-port
controllers so you can't use separate interrupt moderation value
for each port. This means we can't stop interrupt moderation in
driver stop routine. Also have msk_tick() reclaim transmitted Tx
buffers as safety belt. With this change there is no need to check
missing Tx completion interrupt in watchdog handler, so remove it.
Honor ip.fw.one_pass when a packet comes out of a pipe without being delayed.
I forgot to handle this case when i did the mtag cleanup three months ago.
I am merging immediately because this bugfix is important for
people using RELENG_8.
PR: 145004
Fix the race between dotdot lookup and forced unmount, by using
msdosfs-specific variant of vn_vget_ino(), msdosfs_deget_dotdot().
As was done for UFS, relookup the dotdot denode after the call to
msdosfs_deget_dotdot(), because vnode lock is dropped and directory
might be moved.
MFC r204675:
When returning error from msdosfs_lookup(), make sure that *vpp is NULL.
