At work, where we use use KVM+QEMU, we notice that pxeboot is pratically
impossible because of network timeouts. This is due to the fact that the
RTC code makes aggressive jumps.
Two RTC reads does not seem to be sufficient. Change the code to check
for 8 identical RTC values.
Sponsored by: Kumina bv
as it gets the following warning:
sys/dev/asr/asr.c:1836:29: warning: array index of '58' indexes past the end of an array (that contains 1 element) [-Warray-bounds]
while ((len > 0) && (sg < &((PPRIVATE_SCSI_SCB_EXECUTE_MESSAGE)
^
sys/dev/asr/i2omsg.h:934:8: note: array 'Simple' declared here
I2O_SGE_SIMPLE_ELEMENT Simple[1];
^
This is a false positive, since I2O_SG_ELEMENT::Simple is not declared
as a C99 flexible array member, but in the old (but more portable) way.
At run-time, the proper number of array elements will hopefully have
been allocated.
MFC after: 1 week
from the gcc 4.2 branch.
The libraries in the gcc-4_2-branch remained under the LGPLv2.
The changes can be reproduced with the following command:
svn diff svn://gcc.gnu.org/svn/gcc/branches/gcc-4_2-branch/libstdc++-v3
-r 127959:135556
Reviewed by: mm
Approved by: jhb (mentor)
MFC after: 2 weeks
there are some places in the kernel where fixing them is too disruptive,
or where there is a false positive.
In this case, disable -Wconstant-conversion for two aic7xxx-related
files, as they get the following warning on i386 (and possibly on other
32-bit arches):
sys/dev/aic7xxx/ahc_pci.c:112:10: warning: implicit conversion from 'long long' to 'bus_addr_t' (aka 'unsigned int') changes value from 549755813887 to 4294967295 [-Wconstant-conversion]
? 0x7FFFFFFFFFLL
~~^~~~~~~~~~~~~~
This is a false positive, since the code only passes the 0x7FFFFFFFFFLL
argument, if sizeof(bus_addr_t) is larger than 4 (e.g. on 64 bit arches,
or when PAE is enabled on i386). The code could be refactored to do
compile-time checks, but that is more disruptive.
MFC after: 1 week
r204111 (uqs):
Fix common misspelling of hierarchy
r211054 (kientzle);
Fix -R when used with -p. Previously, the
uname and gname weren't overwritten, so the
disk restore would use those to lookup the
original uid/gid again. Clearing the uname
and gname prevents this.
r212263 (gjb):
Fix typo in bsdcpio manual:
s/libarchive_formats/libarchive-formats
MFC after: 2 weeks
r204111 (uqs):
Fix common misspelling of hierarchy
r207786 (kientzle):
Various manpage updates, including many long-option synonyms that were
previously undocumented.
r208028 (uqs):
mdoc: move remaining sections into consistent order
This pertains mostly to FILES, HISTORY, EXIT STATUS and AUTHORS sections.
r209152 (kientzle):
If the compressed data is larger than the uncompressed,
report the compression ratio as 0% instead of displaying
nonsense triggered by numeric overflow. This is common
when dealing with uncompressed files when the I/O blocking
causes there to be small transient differences in the
accounting.
r210720 (joel):
Fix typos.
r223541 (kientzle):
If there is a read error reading Y/N confirmation from the keyboard,
exit immediately with an error.
If there is an error opening or reading a file to put into the archive,
set the return value for a deferred error exit.
r223573 (kientzle):
The --newer-than test should descend into old
directories to look for new files.
r226636 (kientzle):
Typo from previous commit. Urgh.
r224153 (mm, partial):
Update bsdtar.1 manpage
MFC after: 2 weeks
r204111 (uqs):
Fix common misspelling of hierarchy
r208027 (uqs):
mdoc: move CAVEATS, BUGS and SECURITY CONSIDERATIONS sections to the
bottom of the manpages and order them consistently.
GNU groff doesn't care about the ordering, and doesn't even mention
CAVEATS and SECURITY CONSIDERATIONS as common sections and where to put
them.
r208291 (uqs):
mdoc: consistently spell our email addresses <foo@FreeBSD.org>
r209031 (uqs):
mdoc nitpicking: the title argument shall be uppercase
r214822 (kientzle):
Clarify the naming: Methods that free an object should
be called "free". Retain the old "finish" names to preserve
source compatibility for now.
r214905 (kientzle):
If the Zip reader doesn't see a PK signature block
because there's inter-entry garbage, just scan forward
to find the next one. This allows us to handle a lot
of Zip archives that have been modified in-place.
Thanks to: Gleb Kurtsou for sending me a sample archive
r216258 (kientzle):
Don't write data into an empty "file."
In particular, this check avoids a warning when
extracting directory entries from certain GNU tar
archives that store directory contents.
r225525 (kientzle):
Fix cpio on ARM.
MFC after: 2 weeks
Add compatibility for ISO images created with unfixed makefs that
violated ECMA-119 (ISO9660): allow reserved4 to be 0x20 in PVD.
This allows tar to read FreeBSD distribution ISO images created
with makefs prior to NetBSD bin/45217 bugfix (up to 9.0-BETA1).
MFC after: 2 weeks
In the future we may want to perform the switch even if the console is
currently in the graphics mode by trying to reset the video adapter first
(e.g. by executing vesa/vga bios post). That would probably require
some sort of a one-way flag as returning the control of the console back
to the interrupted application most likely would result in a mess.
Reviewed by: emaste
MFC after: 2 months
This change is designed to let USB keyboard work in the panic context
with stop_scheduler_on_panic=1. Most of change consists of removing
mtx_owned() checks where they can be easily avoided. Some additional
lock cleanup is performed along the way.
A list of the smaller changes:
- newbus methods should be executed with Giant already held, just assert
this
- kbd methods called in the non-polling context should be executed with
Giant already held, just assert this
- Giant is recursive, so we should just take it where we must have it,
without redundant checks if we already have it
- thanks to recent syscons changes we don't need to go through the hoops
to detect if kernel is going to poll us; polling mode is now clearly
separated from non-polling mode
- at present the polling mode can be entered by only one thread
- document special cases in greater detail
Please note that the ukbd code and underlying USB code still lve
dangerously in the kdb context by trying to obtain various locks
including the Giant. If any of those locks are already held by the
stopped threads, then the things would blow up.
Another limitation of the ukbd driver is that it is detached before a
system enters the halt state.
With this commit we can enable kern.stop_scheduler_on_panic by default,
that should not introduce any regressions.
Reviewed by: hselasky
MFC after: 3 months
X-MFC after: r228424, r228760
When SCHEDULER_STOPPED() is true the mtx_owned() call may return
an unexpected and thus meaningless result.
So, in the code paths that can be reached when SCHEDULER_STOPPED() is true
we need to protect the mtx_owned() calls with the SCHEDULER_STOPPED()
checks and ensure that an appropriate branch is taken in each case.
Reviewed by: hselasky
MFC after: 3 months
X-MFC after: r228424
get a reply of EEXIST from an NFS server when a Mkdir RPC was retried,
for an NFS over UDP mount.
Upon investigation, it was found that the client was retransmitting
the Mkdir RPC request over UDP, but with a different xid. As such,
the retransmitted message would miss the Duplicate Request Cache
in the server, causing it to reply EEXIST. The kernel client side
UDP rpc code has two timers. The first one causes a retransmit using
the same xid and socket and was set to a fixed value of 3seconds.
(The default can be overridden via CLSET_RETRY_TIMEOUT.)
The second one creates a new socket and xid and should be larger
than the first. However, both NFS clients were setting the second
timer to nm_timeo ("timeout=<value>" mount argument), which defaulted to
1second, so the first timer would never time out.
This patch fixes both NFS clients so that they set the first timer
using nm_timeo and makes the second timer larger than the first one.
Reported by: jwd
Tested by: jwd
Reviewed by: jhb
MFC after: 2 weeks
Backported from the gcc-4_3-branch, revision 118001,
under the GPLv2.
This issue was also fixed in Apple's gcc.
PR: 157025
Reviewed by: mm
Approved by: jhb (mentor)
MFC: 2 weeks
3730:
Fix issue 174 (Windows path names, not relevant for FreeBSD)
3734:
Merge r1989: archive_clear_error should set errno to 0.
3735:
Merge r3247 from trunk: Clear errors before returning
from archive_read_support_format_all()
3799:
Check the position before dereferencing the pointer.
This avoids dereferencing one byte past the end of a string
3824:
Merge r3823 from trunk for issue 199 (hang in iso9660 reading)
Obtained from: http://code.google.com/p/libarchive
MFC after: 2 weeks
initializing structures, like the pv table, that are only used to
implement superpages. In fact, some of the unnecessary code in
pmap_init() was actually doing harm. It was preventing the kernel from
booting on virtual machines with more than 768 MB of memory.
Tested by: sbruno
The following additional vendor revisions are applied:
Revision 3740:
Use archive_clear_error() to clear the error markers.
Obtained from: http://code.google.com/p/libarchive
MFC after: 2 weeks
Fixes extraction of Zip entries that use length-at-end without specifying
either the compressed or uncompressed length. In particular, fixes bsdtar
extraction of such files.
Obtained from: http://code.google.com/p/libarchive
Reported by: Patrick Lamaiziere <patfbsd@davenulle.org> (freebsd-stable@)
MFC after: 1 week
Remove C99 initializers: they don't help in this case.
Set errno to 0 before strtoll() (from NetBSD).
PR: 151850
Suggested by: bde
Approved by: jhb (Mentor)
MFC after: 2 weeks
- Fix boot0 to check for PXE when using the pre-set setting for the
preferred slice.
- Update boot0cfg to use slice 6 to select PXE. Accept a 'pxe' argument
instead of a number for the 's' option as a way to select PXE as well.
Submitted by: Andrew Boyer aboyer averesystems
MFC after: 2 weeks
7.x, 8.x and 9.x with pf(4) imports: pfsync(4) should suppress CARP
preemption, while it is running its bulk update.
However, reimplement the feature in more elegant manner, that is
partially inspired by newer OpenBSD:
- Rename term "suppression" to "demotion", to match with OpenBSD.
- Keep a global demotion factor, that can be raised by several
conditions, for now these are:
- interface goes down
- carp(4) has problems with ip_output() or ip6_output()
- pfsync performs bulk update
- Unlike in OpenBSD the demotion factor isn't a counter, but
is actual value added to advskew. The adjustment values for
particular error conditions are also configurable, and their
defaults are maximum advskew value, so a single failure bumps
demotion to maximum. This is for POLA compatibility, and should
satisfy most users.
- Demotion factor is a writable sysctl, so user can do
foot shooting, if he desires to.
- Let panic() use _Noreturn and __printflike() instead of GCC-specific
attributes.
- Remove prototype from ffs_subr.c and let it include ffs_extern.h.
- Forward declare struct inode to make ffs_extern.h not depend on it.
