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key exchange with git@github.com fails as they appear to try to
negotiate a mac algorithm even tho we use an AEAD cipher which
does not use a mac algorithm.
the work around is to supply a dummy mac algorithm that they
can negotiate to make them happy.
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to reproduce:
gs <<.
null [[][][][][][][][][][][][][][][]] .type
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(thanks joe9)
if the server responds without a window scale option in
its syn-ack, disable window scaling alltogether as both
sides need to understand the option.
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The alarm note is not handled by upas/fs, so if and when it did fire,
the pop3 client process would terminate rendering the entire fs
unresponsive.
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always clean AND invalidate caches before dma read,
never just invalidate as the buffer might not be
aligned to cache lines...
we have to invalidate caches again *AFTER* the dma
read has completed. the processor can bring in data
speculatively into the cache while the dma in in
flight.
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Amavect wrote:
> mkone and mkmany have backwards targets for installing man pages.
> This patch makes 'mk man' actually work for mkfiles that include mkone.
> mkmany is not easily fixed without breaking changes.
> It may go without saying that external repos should write their own mkfiles.
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make user page table list heads arrays so we can
index into the right level avoiding the special
cases for differen PTLEVELS.
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parsing cmdline
we override atag memory on reboot, so preserve
the memsize learned from atag as *maxmem plan9
variable. the global memsize variable is not
needed anymore.
avoid trashing the following atag when zero
terminating the cmdline string.
zero memory after plan9.ini variables.
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the Ipselftab is designed to not require locking on read
operation. locking the selftab in ipselftabread() risks
deadlock when accessing the user buffer creates a fault.
remove unused fields from the Ipself struct.
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check, consistent error strings
initialize the rate limits when the device gets
bound, not when it is created. so that the
rate limtis get reset to default when the ifc
is reused.
adjust the burst delay when the mtu is changed.
this is to make sure that we allow at least one
full sized packet burst.
make a local copy of ifc->m before doing nil
check as it can change under us when we do
not have the ifc locked.
specify Ebound[] and Eunbound[] error strings
and use them consistently.
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ipifcregisterproxy()
remove references to the unused Conv.car qlock.
ipifcregisterproxy() is called with the proxy
ifc wlock'd, which means we cannot acquire the
rwlock of the interfaces that will proxy for us
because it is allowed to rlock() multiple ifc's
in any order. to get arround this, we use canrlock()
and skip the interface when we cannot acquire the
lock.
the ifc should get wlock'd only when we are about
to modify the ifc or its lifc chain. that is when
adding or removing addresses. wlock is not required
when we addresses to the selfcache, which has its
own qlock.
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mark reader process pointers with (void*)-1 to mean
not started yet. this avoids the race condition when
media unbind happens before the kproc has set its
Proc* pointer. then we would not post the note and
the reader would continue running after unbind.
etherbind can be simplified by reading the #lX/addr
file to get the mac address, avoiding the temporary
buffer.
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when the exclusive monitor is cleared, a event is generated
which we can use to wake up idlehands. that way we do not
need to wait for the next timer interrupt until a cpu takes
work from the run queue.
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just a first approximation, uses unaligned 8 byte loads and stores.
MOVP not yet implemented by the linker. no ZVA cache magic yet.
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control transfer reads
there appear to be devices out there such as Realtek RTL2838UHIDIR
SDR that do not process control transfers correctly, ignoring the
high byte of the wLength field. to work around this, we specify an
odd number of bytes for read sizes >= 256 which keeps the low byte
0xFF.
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Now, you can safely use them in unbraced if statements, and
with char*s.
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