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ok tedu@
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- file descriptor table becomes the owner of the lock instead of the proc.
- When grabbing the lock, we check if the fd hasn't changed under our
feet, this is more or less impossible to solve without a hack like
this. I've banged my head against the wall, I figured out a solution,
but implementing it correctly would cost me 12 gray hairs. Screw it,
this is ugly, but it works.
- Wait until usecount drains before releasing the posix lock in closef.
- Add missing FREF/FRELE to sys_flock
- keep the pid in the flock struct instead of abusing the fact that we
used to use the proc as the lock owner.
Pointed out by and discussed with Al Viro, big thanks.
miod@ ok
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of that for shell scripts to cover the #!, an optional space following
it and a newline at the end. feedback and ok miod@
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ok miod@
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ok cluadio@ henning@
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Really just the low-hanging fruit of (hopefully) forthcoming timeout
conversions.
ok art@, krw@
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process sleeping on a unique address (wakeup -> wakeup_one)
ok guenther@, tedu@, art@
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use the constant for IPL_SCHED, and not splsched(), which doesn't do what
we want.
ok art@. Tested by Paul de Weerd.
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correct address to write the passed label. Don't spoof partitions
while looking for the address, as this could result in an invalid
label being written out.
"That looks right" deraadt@ "Looks good to me" miod@
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ok marco@ deraadt@
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used once -- in m_free(). Removed so that people don't get stupid ideas.
OK thib@
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512) bytes; ffs is inextricably tied to using b_blkno and disklabel
always uses sectorsize units.
Thus use DEV_BSIZE units for all fields describing ffs filesystems
and convert to/from sectors where required. This enables the creation
and use of ffs filesystems on non-512 byte sectorsize devices.
This diff allows i386 and sgi (the two test platforms) to find
disklabels that are not on a sectorsize boundary. Same change to
further archs coming.
This is a no-op on 512-byte sectorsize devices.
This work triggered by jsing@'s need to create ffs filesystems on
sgi cdroms so we can create cdrom install media for sgi.
sgi testing by jsing@
ok jsing@ pedro@ "looks sane" beck@ weingart@
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softupdates are reported too statfs via other means. missed this block
in in rev1.148 where the same block was removed from sys_statfs().
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free the mbuf before bailing out.
ok claudio@
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error handler that was never used before. this fixes a bug that a
userland process might hang if the system ran out of mbuf clusters or
even other unexpected behaviour in the network drivers.
this bug is very old - it is also found in rev 1.1/stevens v2/44lite2/...
discussed with many
ok markus@ thib@ dlg@
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bread_cluster() leaks mappings which causes grief on VAC architectures.
Fixes bsd.rd on hppa and armish.
ok art@, beck@
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softupdates are reported too statfs via the mount point flags
or the mount_info part of statfs;
ok pedro@
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Right now when mi_switch picks up the same proc, we didn't clear the
flag which would mean that every time we service an AST we would attempt
a context switch. For some architectures, amd64 being probably the
most extreme, that meant attempting to context switch for every
trap and interrupt.
Now we clear_resched explicitly after every context switch, even if it
didn't do anything. Which also allows us to remove some more code
in cpu_switchto (not done yet).
miod@ ok
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independent executables using the uvm_map_pie() function to
randomize the load address. okay miod@, kettenis@, drahn@
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All cpus are stopped and this cpu blocks all interrupts. It doesn't make
sense to grab locks that ddb can then jump past with longjmp.
Noticed by Pierre Riteau. I just forgot about the bug until reminded
today.
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in something other than clock ticks. From art@'s punchlist and (for
the time being) not yet used.
"you're doing it wrong" art@,ray@,otto@,tedu@
ok art@
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ok art@
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only when they are needed. Makes locations like -123d45m,-123d45m fit.
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discussed with otto, sthen, ckuethe. ok otto
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ok art@
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as dumpsys() will now clear the sensitive information.
ok djm@ (and dumpsys changes too)
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Not sure what's more surprising: how long it took for NetBSD to
catch up to the rest of the BSDs (including UCB), or the amount of
code that NetBSD has claimed for itself without attributing to the
actual authors.
OK deraadt@
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extended DOS partition. the concept of extended partitions is very
simple, it is just another mbr at the partition offset (well, the
standard "EBR" is a linked list with a few limitations, but this diff
works with both variants).
this diff has been in the snapshots for a while.
with input from weingart@ and krw@
ok deraadt@
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conversions that should shave a few bytes off the kernel.
ok henning, krw, jsing, oga, miod, and thib (``even though i usually prefer
FOO|BAR''; thanks for looking.
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In brelse, if we end up in the B_INVAL case without mappings, check
for B_WANTED and wake up the sleeper if there's one before freeing the
buffer. This shouldn't happen, but it looks like there might actually
be some dodgy corner cases in nfs where this could just happen if the
phase of the moon is right and the wind is blowing from the right
direction.
thib@ ok
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with biomem and art has no idea how it got there.
ok art@ thib@
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Ok reyk@, "kill kill kill" thib@
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ok blambert@
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marker; found the hard way by sturm@
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ok art
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ok thib beck art
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end. Makes static linux binaries run again.
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with sensors with the same name. The sensor name is now ever increasing
unless the reference count drops to zero, in which case the naming restarts
at zero as well.
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file copies to nfsv2 causes the system to eventually peg the console.
On the console ^T indicates that the load is increasing rapidly, ddb
indicates many calls to getbuf, there is some very slow nfs traffic
making none (or extremely slow) progress. Eventually some machines
seize up entirely.
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header inbound. on the outbound side, we take that and look for the key
that is the exact opposite, and store that mapping in the state key. on
subsequent packets we don't have to do the lookup on outbound any more.
almost unable to get real benchmarks going here, we know for sure this
gives a more than 5% increase in forwarding performance.
many thanks to ckuethe for stress- and performance-testing.
ok ryan theo
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I hate it, art@
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biowait() reads that do *not* come from the buffer cache - we use the
B_RAW flag to identify these at art's suggestion - since it makes sense
and the flag was not being used. this just flags all these buffers with
B_RAW - biodone already ignores returned buffers marked B_RAW.
ok art@
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