Added references to related man pages that should be under the
"See Also" section. The related PR mentions some missing man pages
that Jason has added to his to do list.
I discussed this with Jason Evans and he's put these on his to-do list.
PR: 16537
Submitted by: AnarCat <beaupran@iro.umontreal.ca>
Approved by: jasone
accept a new command; in high load cases it may be too busy for the old
value.
This loop needs something to tie it to real time, rather than just the CPU's
ability to fetch from the L1 data cache, but this hack works for now.
Approved by: jkh
firmware prompt. Several sleepy folk mistook the '>>>' for the SRM
prompt, which was never the desired idea.
Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
Approved by: jkh
fixes some namespace pollution in general and breakage of modules that
aren't in the sys tree in particular (<machine/ipl.h> includes further
headers that aren't installed under /usr/include).
Reimplemented SPLASSERT() so that it is more machine independent and
less bloated and doesn't require the <machine/ipl.h> include spam.
In particular, don't assume that `cpl' can be printed using %08x
format. The alpha arch doesn't even have `cpl'. SPLASSERT() was
harmless on alphas because it isn't actually used.
a distribution, recognize it and treat as fatal media error. This
happens in the case of a timeout on FTP installations where the
user chooses not to select another FTP site, and resulted in
segmentation fault.
Approved by: jkh
action when denying access to a service. Unfortunately, this also makes
a dandy denial-of-service attack possible. Change to just log the event
and shoot a "go away" response back down the socket.
The description of -X option in csh(1) manpage uses a wording
that references the descriptions of -x, -v and -V. This might
be a little confusing. Changed this to a complete description
that does not reference other paragraphs.
PR: 16762
Submitted: Giorgos Keramidas <keramida@ceid.upatras.gr>
The first paragraph of "Argument list processing" says that an
argument of - will make csh be a login shell. However, running
csh with only a - as an argument fails with the error message.
csh(1) corrected to reflect this.
PR: 16754
Submitted by: Giorgos Keramidas <keramida@ceid.upatras.gr>
Three minor changes to the manpage of chmod(1).
1. At the description of -H option, I added that symlinks are
not followed _by default_ to show that links can be followed,
but the default chmod behavior is not to do so.
2. Moved a misplaced .Va file command up to the place it belongs.
3. Simplified the grammar that describes symbolic modes.
PR: 16749
Submitted by: Giorgos Keramidas <keramida@ceid.upatras.gr>
run out of KVM through a mmap()/fork() bomb that allocates hundreds
of thousands of vm_map_entry structures.
Add panic to make null-pointer dereference crash a little more verbose.
Add a new sysctl, vm.max_proc_mmap, which specifies the maximum number
of mmap()'d spaces (discrete vm_map_entry's in the process). The value
defaults to around 9000 for a 128MB machine. The test is scaled for the
number of processes sharing a vmspace (aka linux threads). Setting
the value to 0 disables the feature.
PR: kern/16573
Approved by: jkh
returning the error directly.
For sem_post(), make sure that the correct thread is woken up. This has
unfortunate performance implications, but is necessary for POSIX compliance.
Approved by: jkh
1) Fix a bug in the int15 function 87 emulation where we only copied half
of what the BIOS asked for. This caused the Mylex RAID adapter to go
haywire and start trashing memory when you tried to boot from it.
2) Don't use interrupt 19 to reboot. Instead, set the reboot flag to a warm
boot and jump to the BIOS's reboot handler. int 19 doesn't clear memory
or restore the interrupt vector table, and thus really isn't safe. For
example, when booting off of PXE, the PXE BIOS eats up a chunk of memory
for its internal data and structures. Since we rebooted via int 19,
using the 'reboot' command in the loader resulted in that memory not
being reclaimed by the BIOS. Thus, after a few PXE boots, the system
was out of lower memory.
3) Catch any int 19 calls made by a BTX client or a user pressing
Ctrl-Alt-Delete and shutdown BTX and reboot the machine cleanly. This
fixes Ctrl-Alt-Delete in the loader and in boot2 instead of presenting
the user with a BTX fault.
Approved by: jkh
Found by: 1) by msmith
fit in the static buffer. This fix causes it to look like there is no
data available, which is also wrong but is better than dumping core.
PR: bin/10344
Reviewed by: billf
Approved by: jkh
This unspams the boot messages, concentrating on the drivers that have
actually been probed.
This basically resurrects revision 1.106 from old /sys/i386/isa/isa.c.
Reviewed by: jkh, dfr
