is a fatal fault if we are holding any non-sleepable locks. This should
cut down on the number of bogus LORs we currently get when the kernel
panics due to a NULL (or bogus) pointer dereference that goes wandering
off into the VM system which tries to acquire locks and then kicks off
the spurious LORs. This should probably be ported to all the archs at
some point.
Tested on: i386
The difference between WITNESS_CHECK() and WITNESS_WARN() is that
WITNESS_CHECK() should be used in the places that the return value of
witness_warn() is checked, whereas WITNESS_WARN() should be used in places
where the return value is ignored. Specifically, in a kernel without
WITNESS enabled, WITNESS_WARN() evaluates to an empty string where as
WITNESS_CHECK evaluates to 0. I also updated the one place that was
checking the return value of WITNESS_WARN() to use WITNESS_CHECK.
sysctl then it will clear the KTR buffer. Note that if you have active
KTR traces at the same time as a clear operation the behavior is undefined,
though it shouldn't panic.
they are. They should be NULL at this point, except if we're coming from
swapdev_strategy().
It should only affect the case where we're swapping directly on a file over
NFS.
For example, you can dynamically generate and load configuration file
depending on the hardware configuration with the following template:
mediaSetCDROM
mediaOpen
command='/dist/rescue/sh /dist/scripts/install.sh'
system
mediaClose
configFile=/tmp/generated.cfg
loadConfig
Now we have full access to files on the media before installation begins.
into the card's memory.
# this eliminates a more of the ifdef soup in if_ed and if_edvar
# I've fixed the cbus drivers, but can't test them all easily.
If I've broken anything, please let me know.
by NGM_PPPOE_SETMODE message. When D-Link compat mode is on, we will
broadcast PADI with empty Service-Name to all listening hooks.
o Rewrite the compatibility options. Before we had two modes - standard
and non-standard (aka 3Com). Now we have standard mode and two compat
flags, that can be combined.
o Be consistent and do s/STUPID/3COM/g. I don't say that 3Com mode isn't
stupid, just want to make code easier to read.
to properly configure the right interface to use.
Also call the mediachg function when we set flags UP and are already
running. If this were a pure ifmedia driver, we'd not need to do this
since we'd be ignoring the linkX flags.
This reduces the number of ifdefs to support sub-devices a little as a
nice side effect. It also reduces the number of hpp interfaces
exposed by 33%.
man page that the ifconfig option link2 is used to disable the AUI
transceiver on the 3com boards (should also say HP PC Lan+). This
makes the connection clearer.
Add a note about why we set this flag prior to attaching the device.
We never set or clear the flag later, only test it. There can be no
races here, but this might be asthetically displeasing to some. Also
note that we may no longer need to have this knob at all as we may be
able to do it with the more sophisticated rc.d scripts we have today I
think the only reason it is there is because we didn't used to allow
its proper setting when configured to get the IP address via DHCP.
I'll note that this would be better handled by using ifmedia for all
ed cards, not just those with a miibus...
This is important with MegaLib, when issuing a GET_REBUILD_PROG since
it returns an error if the drive is not in rebuild state.
This will be MFC'ed shortly.
Submitted by: ps
Reviewed by: scottl
Found by: ambrisko
and resume methods so these events propagate through the device driver
hierarchy.
- In dma(4) enable the chaining of the DMA engine interrupt handler for
the LANCE devices via a dma_setup_intr(). This was commented out before
as I was unsure whether I'd use it but this is probably cleaner than
fiddling with the DMA engine interrupt in the LANCE driver directly.
- In ebus_setup_dinfo() free 'intrs' instead of 'reg' twice in case
setting up a child fails due to routing one of its interrupts fails. [1]
Found by: Coverity Prevent [1]
MFC after: 3 days
/tmp may not be writeable yet when dhclient is first run via
/etc/rc.d/netif so using it may not work. Also, writing to a
predictable file in /tmp as root is a really bad idea since a malicious
user may be able to win a race and insert a symlink which will allow
them to cause any file to be overwritten. To solve these problems,
create the tempory file in /var/run which will exist this early and is
writable only by root.
Security: Local risk if users can cause dhclient to run on demand
(such as by unplugging and replugging the network cable).
expands to the GCC format_arg attribute if supported.
This fixes a syntax error in <nl_types.h> for compilers/tools not
implementing the GCC __attribute__ extensions.
