In its stead use the Solaris / illumos approach of emulating '-' (dash)
in probe names with '__' (two consecutive underscores).
Reviewed by: markj
MFC after: 3 weeks
Table is 22 bits, with the bit 31 being the interrupt-on-completion
bit.
OpenBSD and UEFI set this bit, resulting in large block i/o lengths
being sent to bhyve and coredumping the process. Fix by masking off
the relevant 22 bits when using the DBC field as a length.
Reviewed by: Zhixiang Yu
Discussed with: Tycho Nightingale (tycho.nightingale@pluribusnetworks.com)
MFC after: 10.0
callable from the kernel.
Right now vn_sendfile() can't be called from anything other than
a syscall handler _and_ return the number of bytes queued.
This simply moves the copyout() to do_sendfile() so that any kernel
code can initiate vn_sendfile() outside of a syscall context.
Tested:
* tiny little sendfile program spitting things out a tcp socket
Sponsored by: Netflix, Inc.
actual value read by the guest from the device. The IOAPIC ID is now set to
zero in both MPtable/ACPI tables as well as in the ioapic device emulation.
Pointed out by: grehan@
This lock gets deleted in sys/netpfil/ipfw/ip_fw2.c:vnet_ipfw_uninit().
Therefore, vnet_ipfw_nat_uninit() *must* be called before vnet_ipfw_uninit(),
but this doesn't always happen, because the VNET_SYSINIT order is the same for both functions.
In sys/net/netpfil/ipfw/ip_fw2.c and sys/net/netpfil/ipfw/ip_fw_nat.c,
IPFW_SI_SUB_FIREWALL == IPFW_NAT_SI_SUB_FIREWALL == SI_SUB_PROTO_IFATTACHDOMAIN
and
IPFW_MODULE_ORDER == IPFW_NAT_MODULE_ORDER
Consequently, if VIMAGE is enabled, and jails are created and destroyed,
the system sometimes crashes, because we are trying to use a deleted lock.
To reproduce the problem:
(1) Take a GENERIC kernel config, and add options for: VIMAGE, WITNESS,
INVARIANTS.
(2) Run this command in a loop:
jail -l -u root -c path=/ name=foo persist vnet && jexec foo ifconfig lo0 127.0.0.1/8 && jail -r foo
(see http://lists.freebsd.org/pipermail/freebsd-current/2010-November/021280.html )
Fix the problem by increasing the value of IPFW_NAT_SI_SUB_FIREWALL,
so that vnet_ipfw_nat_uninit() runs after vnet_ipfw_uninit().
it is all in the one place again. Rename libc/iconv/iconv.c to
bsd_iconv.c. Compile the wrappers into libc.a so that WITHOUT_DYNAMICROOT
works again.
Discussed with: kib (and partly stolen from his patch)
3-clause BSD license as specified by Oracle America, Inc. in 2010.
This license change was approved by Wim Coekaerts, Senior Vice
President, Linux and Virtualization at Oracle Corporation.
bhyve supports a single timer block with 8 timers. The timers are all 32-bit
and capable of being operated in periodic mode. All timers support interrupt
delivery using MSI. Timers 0 and 1 also support legacy interrupt routing.
At the moment the timers are not connected to any ioapic pins but that will
be addressed in a subsequent commit.
This change is based on a patch from Tycho Nightingale (tycho.nightingale@pluribusnetworks.com).
In r208160, sctp_it_ctl was made a global variable, across all VNETs.
However, sctp_init() is called for every VNET that is created. This results
in the same global mutexes which are part of sctp_it_ctl being initialized. This can result
in crashes if many jails are created.
To reproduce the problem:
(1) Take a GENERIC kernel config, and add options for: VIMAGE, WITNESS,
INVARIANTS.
(2) Run this command in a loop:
jail -l -u root -c path=/ name=foo persist vnet && jexec foo ifconfig lo0 127.0.0.1/8 && jail -r foo
(see http://lists.freebsd.org/pipermail/freebsd-current/2010-November/021280.html )
Witness will warn about the same mutex being initialized.
Fix the problem by only initializing these mutexes in the default VNET.
commit 772d6fbcf592209aa1ab1b61714e8ae72a5b1698
Author: Dmitrij Tejblum <tejblum@yandex-team.ru>
Date: Sun Jun 2 13:48:44 2013 +0400
Convert some versions of EXTRACT_{16,32,64}BITS() to inline functions.
It removes the vast majority of strict-aliasing warnings from GCC.
The code was easier to read without __DECONST and clang didn't report
any error. I thought the cast was enough...
MFC after: 3 days
X-MFC-With: r258549
Instead of assuming that plain sh test programs exist in the source
tree in their final form and are marked as executable, generate them
from a list of sources.
By default, just assume that the source file for a program P is P.sh
but allow the caller to customize the inputs. Similarly, also allow
the caller to apply sed(1) replacements on the output. These will
both be useful in hooking existing test code from tools/regression/
into the test suite.
Approved by: rpaulo (mentor)
This was missed when this file was first imported. Its atf.test.mk
counterpart is already being installed and these are necessary if we
want "make" within the source tree (not via "buildworld") to work.
Approved by: rpaulo (mentor)
drm_le_cmp() (qsort_r()'s callback) receives pointers to elements in the
array passed to qsort_r(), not the elements themselves.
Before this fix, the use of qsort_r() shuffled the array, not sorted it,
because the compare callback accessed random memory locations, not the
expected elements.
This bug triggered an infinite loop in KDE/xserver:
1. KDE has a kded module called "randrmonitor" which queries xserver
for current monitors at startup and then listens to RandR
notifications from xserver.
2. xserver handles the query from "randrmonitor" by polling the
video device using the "drm_mode_getconnector()" ioctl. This
ioctl returns a list of connectors and, for those with a
connected monitor, the available modes. Each modes list is sorted
by the kernel before returning. When xserver gets the connectors
list, it sorts the modes lists again.
In the case of this bug, when two modes are equal (in xserver's
compare function PoV), their order is kept stable (ie. the
kernel order is kept for those two modes). And because the list
was shuffled by the kernel, the order of two equal modes was
frequently changed in the final modes list in xserver.
3. xserver compares the returned connectors list with the list
obtained earlier. In particular, it compares the sorted
modes lists for each connector. If a property of a connector
changes (eg. modes), xserver sends a "RRNotify_OutputChange"
notification.
Because of the change of order between equal modes, xserver sent
a notification after each polling of the connectors.
4. "randrmonitor" receives a notification, triggered by its query. The
notification doesn't contain the new connectors list, therefore, it
asks for the new list using the same function: go back to step #2.
MFC after: 3 days
option, unbreak the lock tracing release semantic by embedding
calls to LOCKSTAT_PROFILE_RELEASE_LOCK() direclty in the inlined
version of the releasing functions for mutex, rwlock and sxlock.
Failing to do so skips the lockstat_probe_func invokation for
unlocking.
- As part of the LOCKSTAT support is inlined in mutex operation, for
kernel compiled without lock debugging options, potentially every
consumer must be compiled including opt_kdtrace.h.
Fix this by moving KDTRACE_HOOKS into opt_global.h and remove the
dependency by opt_kdtrace.h for all files, as now only KDTRACE_FRAMES
is linked there and it is only used as a compile-time stub [0].
[0] immediately shows some new bug as DTRACE-derived support for debug
in sfxge is broken and it was never really tested. As it was not
including correctly opt_kdtrace.h before it was never enabled so it
was kept broken for a while. Fix this by using a protection stub,
leaving sfxge driver authors the responsibility for fixing it
appropriately [1].
Sponsored by: EMC / Isilon storage division
Discussed with: rstone
[0] Reported by: rstone
[1] Discussed with: philip
when there is an invalid character in the output codeset while it is
valid in the input. However, POSIX requires iconv() to perform an
implementation-defined conversion on the character. So, Citrus iconv converts
such a character to a special character which means it is invalid in the
output codeset.
This is not a problem in most cases but some software like libxml2 depends
on GNU's behavior to determine if a character is output as-is or another form
such as a character entity (&#NNN;).
Although <&0 does nothing, it is a redirection affecting standard input and
should therefore disable the </dev/null redirection implicit in a background
command.
