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when executing generated binaries and helper scripts,
always execute them as ./name instead of relying that
path contsins the dot.
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always explicitely execute installer modules with ./name instead
of relying that the path contians the dot.
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make closeproc() spawn more procs on demand insead of
doing it from closechanq(). this avoids the palloc lock
checks and simplifies the logic.
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the image cache has the property of keeping a channel
for the executable binary arround which prevents the
mountpoint from going away.
this can easily be reproduced by running:
@{rfork n; ramfs; cp /bin/echo /tmp; /tmp/echo}
observe how ramfs stays arround until the image is
reclaimed. the echo binary is also cached but is
unreachable from any namespace.
we now restrict the caching to mounts that use the client
cache (-C flag) only. this should always be the case
for /bin. places where this isnt the case might observe
a performance regression.
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closechanq() is unable to fork a new closeproc when palloc
is locked. so we spawn a closeproc early in chandevinit()
and make sure theres always one process arround to handle
the queue.
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(issue 189)
we'r getting a rectangle taller than a single line from
coladd() which causes textresize() to collapse the tag
text to zero height.
should probably fix coladd() instead.
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introduce kernel inspured Block structure with
read/write pointers to pass packets arround.
the intend is to avoid copying when adding/removing
frame headers and simplifying the drivers.
the driver now calls etheriq() directly allowing it to
queue multiple packets in one pass without having
to keep state.
transmit gets a buffer passed that has room for
frame headers and trailers so no copying is needed.
blocks are refcounted avoiding another copy when
passed to only one receive queue (common case).
receive queues are now limited to 100KB avoiding
buffer bloat.
Dq* a memory leak in destroyfid has been fixed.
lots of minor cleanups.
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erik quanstro
from: http://9fans.net/archive/2013/04/327
since <compose>x is not yet entrenched, i have a suggestion for ease of
input. suppose <compose>x were redefined so the syntax were
"<compose>x[0-9a-f]+;". in the case that 6 hex digits are entered, then
the ";" is not necessary.
not only would this allow for entering 21-bit runes, it would also allow for
short sequences to be entered more easily.
- erik
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using strlen() gives the number of bytes in the utf-8 string.
could use utflen() instead, but decided to just go in a loop
and get rid of the counters all together.
UTF-16 surrogates are not handled.
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big big change. requires rebuilding 8c first and then rebuild
everything.
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the process is *NOT* allowed to exit after a srvrelease() as
it still holds a reference (srv->rref) preventing the srv
from beging freed/ended (listensrv) before srvacquire().
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(thanks mischief!)
ethernet packets with sizes that where not multiples of 4 where
discarded because the check uses the smsc frame size instead of
the payload size. when a usb read returns just one packet, theres
no next frame header and the calculated frame size is bigger than
the usb read which caused the whole packet to be discarded as invalid.
thanks to mischief for testing and debugging!
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usb is bound after /dev, so a hanging usb device will hang
access to /dev. we avoid this by releasing the srv, which
allows the fs to still handle reads and walks of the
directories.
ios are serialized by a qlock in the Umsc structure.
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patch)
small little patch to help fdisk work properly on 64-bit machines.
sizeof(Table) is 4 bytes too big.
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bad:
term% echo 1 1 | aux/statusbar -t x
|###########################################################| 100% term%
vs.
good:
term% echo 1 1 | aux/statusbar -t x
|###########################################################| 100%
term%
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add checktag and nil checks in cfsdump() making sure to notice
when the roroot directory structures is corrupted.
cwrecur() used tag == Tsuper to indicate that this is the first
level recursive invocation. this is confusing as we really expect
Tdir tag in that case for the root directory. instead, we now
pass the correct tag (Tdir) and use cw->depth > 1 to see if we
are past the root.
the block tag was only checked when the block was not in
the memory cache. check the tag always!
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this should prevent accidential fiddeling with the kernels
mouse driver.
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