This allows us to:
- perform scatter gather operations without using temporary files,
- create non-linear pipelines, and
- implement file views using symbolic links.
File view idea by: Vassilios Karakoidas
Portalfs pointer by: John Ioannidis
MFC after: 1 month
cojunction with -C and is used by /etc/rc.d/newsyslog.
I forgot that this was in my perforce tree and not my running system and
thus committed a non-working newsyslog script.
Reported by: des
Pointy hat: brooks
with EBUSY and a cdrom is not mounted at /cdrom, sysinstall fails to
treat it as an error and thinks that the disk mounted ok. However, it
doesn't find a cdrom.inf file so it complains. Later when it tries to
unmount the disk due to a mediaClose() umount(2) returns an error, and it
never clears its internal mounted flag. The fix here is to properly
handle EBUSY as an error if there isn't a CD already mounted at /cdrom.
- Add a new CDROMInitQuiet variable that can be used to shut up the dialog
box about the mount(2) system call failing when trying to mount a CD-ROM.
This is used by the feature described below.
- When using a fixit CD, first try to see if we can mount the disc in the
drive now and use it as a fixit CD. If not, then prompt the user to
insert the disc and try again. If we do succeed on the first "silent"
probe then we don't ask the user to eject the disk after leaving fixit
mode.
- Add a simple file existence test to make sure that the disc that we mount
really is a livefs disc.
- Explicitly switch back to ttyv0 when using the standard console after
the fixit shell dies. Previously this behavior worked accidentally
because all the fixit modes popped up a dialog box which contained a
hidden switch to ttyv0.
MFC after: 1 day
While version 4 entries are architecture-independent, we
also store old (version 3) entries in native byte order.
Also, the hash itself is created in a native byte order.
With this change, pwd_mkdb(8) can be used to cross-build
*pwd.db files for another architecture.
Tested on: i386, amd64, alpha, sparc64
with moderate IO going on, system usage can hover around 65-77% even
though it would benefit from higher performance. Typically, only truly
idle systems pass the 90% mark so only demote then.
Also, add conditional code to allow different invokations for objcopy
depending on whether we're compiled on an i386 arch or amd64 arch, so
that we can produce x86-64 object files on amd64.
Ville-Pertti Keinonen (will at exomi dot comohmygodnospampleasekthx)
deserves a big thanks for submitting initial patches to make it
work. I have mangled his contributions appropriately.
The main gotcha with Windows/x86-64 is that Microsoft uses a different
calling convention than everyone else. The standard ABI requires using
6 registers for argument passing, with other arguments on the stack.
Microsoft uses only 4 registers, and requires the caller to leave room
on the stack for the register arguments incase the callee needs to
spill them. Unlike x86, where Microsoft uses a mix of _cdecl, _stdcall
and _fastcall, all routines on Windows/x86-64 uses the same convention.
This unfortunately means that all the functions we export to the
driver require an intermediate translation wrapper. Similarly, we have
to wrap all calls back into the driver binary itself.
The original patches provided macros to wrap every single routine at
compile time, providing a secondary jump table with a customized
wrapper for each exported routine. I decided to use a different approach:
the call wrapper for each function is created from a template at
runtime, and the routine to jump to is patched into the wrapper as
it is created. The subr_pe module has been modified to patch in the
wrapped function instead of the original. (On x86, the wrapping
routine is a no-op.)
There are some minor API differences that had to be accounted for:
- KeAcquireSpinLock() is a real function on amd64, not a macro wrapper
around KfAcquireSpinLock()
- NdisFreeBuffer() is actually IoFreeMdl(). I had to change the whole
NDIS_BUFFER API a bit to accomodate this.
Bugs fixed along the way:
- IoAllocateMdl() always returned NULL
- kern_windrv.c:windrv_unload() wasn't releasing private driver object
extensions correctly (found thanks to memguard)
This has only been tested with the driver for the Broadcom 802.11g
chipset, which was the only Windows/x86-64 driver I could find.
properly initialized, that happens when lpc is called from a tty.
Without this change, it's possible to get SIGSEGV simply doing:
echo "..:" | lpc
Reported by: Wojciech A. Koszek <dunstan at freebsd czest pl>
PR: 77462 (patch rewritten by myself)
MFC After: 1 week
entry having stepping value of zero can cause crontab to hang there,
and if the main crontab is being changed in this way, then cron(8)
will keep spining.
Obtained from: OpenBSD [src/usr.sbin/cron/entry.c,v 1.17]
PR: 68683 (my own, but forgot to commit it...)
MFC After: 1 week
o Use SYSCTL_IN() macro instead of direct call of copyin(9).
Submitted by: ume
o Move sysctl_drop() implementation to sys/netinet/tcp_subr.c where
most of tcp sysctls live.
o There are net.inet[6].tcp[6].getcred sysctls already, no needs in
a separate struct tcp_ident_mapping.
Suggested by: ume
