available through MACHINE_CPU, indicating the CPU supports that
feature, as done by revision 138685.
This changeset adds "mmx" into the default amd64 MACHINE_CPU list
when no CPUTYPE is specified to provide consistent behavior.
PR: amd64/145593
Submitted by: mm
MFC after: 2 weeks
Improve accuracy of connection data transfer math.
Disable Nagle's algorithm to avoid delaying transfers of data --
will want to refine this to combine payload with header transfer,
however.
Now that we're running w/o Nagle, try to send the initial data
burst with the header in a single TCP segment.
Prefer %zu to %ju for size_t.
MFC after: 1 week
Sponsored by: Juniper, Inc.
feature. The kernel makefiles have specifically not been bumped
because nothing uses this new feature and doing so forces everybody to
recompile for no good reason. This chnage will be MFC'd where the
kernel version numbers for amd64 and ia64 will be bumped, since those
are the only two that have use the option remapping feature. Once
merged, this will give a better error message to folks that are using
buildkernel without buildworld or kernel-toolchain to update their
kernels.
MFC after: 3 days
occurs. In addition, the delay when programming the short cable fix
should be 100us, not 100ms.
PR: kern/64556
Submitted by: Thomas Hurst <tom at hur.st>
Approved by: rrs (mentor)
MFC after: 1 week
Keep the interrupts disabled in order to avoid preemption problems.
Reported by: tinderbox, b.f. <bf1783 at googlemail dot com>
MFC: 2 weeks
X-MFC: r206878
Assert this.
In the reported panic, vdestroy() fired the assertion "vp has namecache
for ..", because pseudofs may end up doing cache_enter() with reclaimed
dvp, after dotdot lookup temporary unlocked dvp.
Similar problem exists in ufs_lookup() for "." lookup, when vnode
lock needs to be upgraded.
Verify that dvp is not reclaimed before calling cache_enter().
Reported and tested by: pho
Reviewed by: kan
MFC after: 2 weeks
SUSv4 requires that implementation returns EINVAL if supplied path is NULL,
and ENOENT if path is empty string [1].
Bring prototype in conformance with SUSv4, adding restrict keywords.
Allow the resolved path buffer pointer be NULL, in which case realpath(3)
allocates storage with malloc().
PR: kern/121897 [1]
MFC after: 2 weeks
set the NFSCLFLAGS_RECVRINPROG while doing recovery from an expired
lease in a manner similar to r206818 for server reboot recovery.
This will prevent the function that acquires stateids for I/O
operations from acquiring out of date stateids during recovery.
Also, fix up mutex locking on the nfsc_flags field.
MFC after: 1 week
When performing a smp_rendezvous() or more likely, on amd64 and i386,
a smp_tlb_shootdown() the caller will end up with the smp_ipi_mtx
spinlock held, busy-waiting for other CPUs to acknowledge the operation.
As long as CPUs are suspended (via cpu_reset()) between the active mask
read and IPI sending there can be a deadlock where the caller will wait
forever for a dead CPU to acknowledge the operation.
Please note that on CPU0 that is going to be someway heavier because of
the spinlocks being disabled earlier than quitting the machine.
Fix this bug by calling cpu_reset() with the smp_ipi_mtx held.
Note that it is very likely that a saner offline/online CPUs mechanism
will help heavilly in fixing similar cases as it is likely more bugs
of this type may arise in the future.
Reported by: rwatson
Discussed with: jhb
Tested by: rnoland, Giovanni Trematerra
<giovanni dot trematerra at gmail dot com>
MFC: 2 weeks
Special deciation to: anyone who made possible to have 16-ways machines
in Netperf
- Marocca will have DST this year between May and August
- Historical data for Taiwan
- No more DST for the Argentinian province/state San Luis this year.
Obtained from: ftp://elsie.nci.nih.gov/pub/
changing format_k2 to take a long long. Because itoa is defined as a K&R
C function, without prototyping its arguments, format_k2 passed a 64-bit
value, but itoa() received only the first word, showing '0' in all memory
fields.
