read_initial_length detects pointer size by checking first
4 bytes of .debug_line and stores it in struct comp_unit_head *
passed to it as second argument. By passing NULL to a
read_initial_length we ignore actual pointer size (8 bytes) and
use default (4 bytes) which results in wrong offsets of header fields.
to amd64, i386, and pc98. The headers are installed to /usr/include/x86
during an installworld, and an 'x86' symlink is created for kernel builds
similar to 'machine' so that the headers can be included as <x86/foo.h>.
Reviewed by: imp
and not something out of the early 1980s. Make sure all error
messages go to stderr, not stdout. Since there's error-handling code
to handle empty SEARCHPATHS and FILESYSTEMS, use the initialization
form that allows this error to be diagnosed. (hat tip: jilles@)
made it impossible to override PRUNEDIRS to make it empty. Use the
non-colon form to only set PRUNEDIRS if it is completely unset. (For
parallelism, the other configuration defaults here could be done the
same way, but that could be more obviously accomplished by disabling
updatedb in periodic.conf, so leave them alone for now.)
about but otherwise ignored. When allowing the master to be set manually via
ifconfig(8) by adding the former to IFM_SUBTYPE_ETHERNET_OPTION_DESCRIPTIONS
(as it should be) it seems to be unfavorable that a machine can be made to
panic with a simple ifconfig(8) invocation.
are in the filesystem from the locate database. By default, exclude
".zfs" directories, as users who who have set snapdir=visible and are
taking frequent snapshots most likely do not want the snapshots
included in the locate database.
concurrency bug. Since all SLB/SR entries were invalidated during an
exception, a decrementer exception could cause the user segment to be
invalidated during a copyin()/copyout() without a thread switch that
would cause it to be restored from the PCB, potentially causing the
operation to continue on invalid memory. This is now handled by explicit
restoration of segment 12 from the PCB on 32-bit systems and a check in
the Data Segment Exception handler on 64-bit.
While here, cause copyin()/copyout() to check whether the requested
user segment is already installed, saving some pipeline flushes, and
fix the synchronization primitives around the mtsr and slbmte
instructions to prevent accessing stale segments.
MFC after: 2 weeks
feature_present(3) checks.
This will help to run-time detect and conditionally handle specific
optionas of either feature in user space (i.e. in libipsec).
Descriptions read by: rwatson
MFC after: 2 weeks
not able to trigger the issue with sample boards, some users seems
to suffer from freeze/lockup when system is booted without UTP cable
plugged in. I'm not sure whether this is BIOS issue or controller
bug. This change fixes AR8132 lockup issue seen on EEE PC.
Reported by: kmoore
Tested by: kmoore
