Report errors indicated by the transport. If this is too chatty, I'll
throw it behind a debug write.
Remove commented out debugs that are no longer useful.
properly parsed for interface prefixes and netmask suffixes. This was
already done for the old-style (fixed) command line, but missed for
the new-style.
MFC after: 1 week
Remove a bogus null terminator when stripping the netmask from
IP addresses. This was causing later addresses in a comma-separated
string to disappear.
Use memcpy instead of strcpy. This could just cause Bad Things.
PR: 170832
MFC after: 1 week
r128060 for "hardware-supplied entropy" reversed this without reason,
seems a typo.
* Isolate "better than nothing" implementation to a function.
Submitted by: obrien & Arthur Mesh <arthurmesh@gmail.com>
Sponsored by: Juniper Networks
BUS_DMA_COHERENT attribute
The minimum unit for changing "cachable" attribute is page, so call
to pmap_change_attr effectively disable cache for all pages that newly
allocated DMA memory region spans on. The problem is that general-purpose
memory could reside on these pages too and disabling cache might affect
performance. Moreover ldrex/strex operators raise Data Abort exception
when accessing memory on page with "cachable" attribute off.
BUS_DMA_COHERENT does nto require memory to be coherent. It just suggests
to do best effort for reducing synchronization overhead.
PMC_PROC_IS_USING_PMCS macro.
Invocations of this macro are not synchronized with setting/clearing
of P_HWPMC flag, so the atomic operation here isn't needed. Removing
the atomic operation provides noticeable improvement (5-6%) on
some scheduler-intensive workloads with HWPMC_HOOKS enabled on an
8C Sandy Bridge Xeon system.
Sponsored by: Intel
Reviewed by: jhb
MFC after: 1 week
for getvfsbyname(3) operation when called from 32bit process, and
getvfsbyname(3) is used by recent bsdtar import.
Reported by: many
Tested by: David Naylor <naylor.b.david@gmail.com>
MFC after: 5 days
First, don't exit when the link goes down on an interface. Instead,
teach dhclient to track changes in link state and to enter the reboot
state when the link on an interface goes up causing dhclient to attempt
to renew its existing lease.
Second, remove the change I added to clear the old lease when dhclient
exits due to an error (such as ifconfig down). If an interface is
using autoconfiguration it should keep its autoconfiguration as much as
possible. If the next time it needs a configuration it is able to reuse
the previous autoconfiguration, then leaving the settings intact allows
existing connections to survive temporary outages, etc.
PR: bin/166656
MFC after: 1 month
This addresses kernel panic observed when sending SCSI UNMAP
commands to SATA disks attached to isci(4).
1) Flesh out callback routines to allocate/free buffers needed for
translating SCSI UNMAP data to ATA DSM data.
2) Add controller-level pool for storing buffers previously allocated
for UNMAP translation, to lessen chance of no buffer available
under memory pressure.
3) Ensure driver properly handles case where buffer pool is empty
and contigmalloc returns NULL.
Sponsored by: Intel
Reported by: Maksim Yevmenkin <max at netflix dot com>
Discussed with: scottl
MFC after: 3 days
evicted from the syncache but a later syncache_expand succeeds because
of syncookies. The TOE driver has to resort to more direct means to
install its hooks in the socket in this case.
