PT_SETKSTACK. These requests allow the tracing process to access the
dirty registers of the traced process that are on the kernel stack.
Note that there's currently no way to access the rnat register for
those dirty registers that are not (yet) covered by a nat collection
point. The interface for this is still being slept on.
Also note that implied by these requests is the division of work:
The tracing process has to keep track of where registers are spilled
and is responsible to figure out where the NaT bit of the stacked
registers are at any time during the execution of the traced process.
The kernel provides the interfaces but will not abstract the fact
that the register stack can be split. This model does not follow
the approach taken in Linux where PT_PEEK and PT_POKE deals with
this automagically.
check for permissions, do it for all requests, not the known requests.
Later when we actually service the request we deal with the invalid
requests we previously caught earlier.
This commit changes the behaviour of the ptrace(2) interface for
boundary cases such as an unknown request without proper permissions.
Previously we would return EINVAL. Now we return EBUSY or EPERM.
Platforms need to define __HAVE_PTRACE_MACHDEP when they have MD
requests. This makes the prototype of cpu_ptrace() visible and
introduces a call to this function for all requests greater or
equal to PT_FIRSTMACH.
Silence on: audit
Correctly handle additional disks without BIOS partition tables.
Previously, vinum_scandisk stopped scanning additional disks for
native partitions after any good partition was found. This applies
to all platforms, but was a particular problem on systems without
BIOS partition tables.
Submitted by: harti
the hardware mutex if it is held. Re-add calls to Enable/Clear fixed events.
This is not known to have caused problems. Bug symptoms might have included
instability after an aborted suspend attempt or power/sleep buttons not
being enabled.
kobj global method table; also kassert that the table has not overflowed
when defining a new method.
there are indications that the table is being overflowed in certain
situations as we gain more kobj consumers- this will allow us to check
whether kobj is at fault. symptoms would be incorrect methods being called.
Update ffsinfo(8) to use new UFS2 support in the growfs(8) debugging
functions. Largely consists of renaming fields and types to be aware
of the UFS1/UFS2 distinction, relying on libufs(3) to open and sanity
check the device/file/label accessed.
Since libufs(3) now handles label/UFS interactions, remove -L argument.
Note: when submitted, this patch had substantial style changes. I've
attempted to remove the restyling from the patch to separate the
functional and style changes.
Submitted by: Lukas Ertl <l.ertl@univie.ac.at>
PR: bin/53517
Notes. These duplicate information that ideally should live in the
manual pages for individual drivers, and can easily become
out-of-date. (This in fact is already the case.)
Hypertext versions of the hardware notes already contain links to
on-line versions of the manual pages.
The first two drivers to get this treatment are amr(4) and aac(4).
Discussed on: doc@
Add support for UFS2 to the UFS debugging routines in growfs; required
to update ffsinfo(8) for UFS2. A variety of types and fs variables are
renamed to reflect UFS1/2 structures. Also, the print routines for
inodes are now split into separate UFS1 and UFS2 versions. We now
define dbg_dump_csum_total(), but lose the printing of rotational
information since that's not present in UFS2. In the future, we may
want to re-add this functionality to print it solely for UFS1.
Submitted by: Lukas Ertl <l.ertl@univie.ac.at>
PR: bin/53517
use the atmconfig(8) utility instead of route(8) to install those routes.
For this we need a new rc.conf variable natm_static_routes that works
just like static_routes except that the referenced routes use the syntax
of atmconfig(8).
Okay'ed by: mtm
CP-168U board. It initializes and attaches in the same way as the
older (but higher performance) C168H. The only difference is the
board ID, which is 0x1681.
PR: kern/53548
Submitted by: regnauld@catpipe.net
MFC after: 1 week
files is usually the first direct block pointer. Since FreeBSD does
automatic block reallocation to reduce filesystem fragmentation, the
file being tailed can be relocated to different blocks 'on-the-fly',
making the check for st_rdev unreliable. The result of this bug is
tail -F pseudo-randomnly thinking the file was rotated when it wasn't,
and as a result, spews out the entire file trying to catch up.
MFC after: 3 days
the Palm device and the USB host controller deadlock. The USB host
controller is expecting an early-end-of-transmission packet with 0
data, and the Palm doesn't send one because it's already communicated
the amount of data it's going to send in a header (which ucom/uvisor
are oblivious to). This is the problem that has been known on the
pilot-link lists as the "[Free]BSD USB problem", but not understood.
Submitted by: Nathan J. Williams <nathanw@MIT.EDU>
multi-fragment transmission. I'm not sure if this is a bug or a requirement
that I overlooked with going through the documentation, but the sample
8169 NIC that I have seems to require it at least some of the time or
else it botches TCP checksums on segments that span multiple descriptors.
to override the method pointers for manipulating nodes; this fixes
a problem where the ic_bss node was not being created properly
for the ath driver causing the driver to scribble on random memory.
Noticed by: David Young <dyoung@pobox.com>
rate set element id from an AP. This allows stations to associate with
AP's that violate the 802.11 spec by sending >8 rates. This corrects a
recent regression; older code did likewise.
for partly-aligned operations through /dev/crypto (unlikely)
o add missing case in iov code that never showed up because of the above bug
Submitted by: "Jason L. Wright" <jason@thought.net>
MFC after: 3 days
