waiting sync pass we need to do a blocking acquire and restart.
Another thread, typically the buf daemon, may have this buf locked and
if we don't wait we can fail to sync the file. This lead to a great
variety of softdep panics because we rely on all dependencies being
flushed before proceeding in several cases.
Reported by: pho
Discussed with: mckusick
Sponsored by: EMC / Isilon Storage Division
MFC after: 2 weeks
This could cause dirhash panics since the dirhash state would be
successfully truncated while the directory was not.
Reported by: pho
Discussed with: mckusick
Sponsored by: EMC / Isilon Storage Division
MFC after: 2 weeks
after r262763 it started to return locked mutexes to UMA. To fix that,
conditionally unlock the mutex in the destructor.
Tested by: "Sergey V. Dyatko" <sergey.dyatko@gmail.com>
This fixes kernel panic during boot, caused by incompatibility of recent
CAM locking changes and this bus scanner code.
Submitted by: Microsoft
MFC after: 1 week
There are a number of reports of userspace application crashes that
are "solved" by setting vm.pmap.pcid_enabled=0, including Java and the
x11/mate-terminal port (PR ports/184362).
I originally planned to disable this only in stable/10 (in r262753), but
it has been pointed out that additional crash reports on HEAD are not
likely to provide new insight into the problem. The feature can easily
be enabled for testing.
Import xz-embedded from git.
This is from commit hash '6a8a2364434763a033781f6b2a605ace9a021013'.
This makes it possible to use CRC64 but for now it's intentionally
not added to build.
- Use counter(9) for rt_pksent (former rt_rmx.rmx_pksent). This
removes another cache trashing ++ from packet forwarding path.
- Create zini/fini methods for the rtentry UMA zone. Via initialize
mutex and counter in them.
- Fix reporting of rmx_pksent to routing socket.
- Fix netstat(1) to report "Use" both in kvm(3) and sysctl(3) mode.
The change is mostly targeted for stable/10 merge. For head,
rt_pksent is expected to just disappear.
Discussed with: melifaro
Sponsored by: Netflix
Sponsored by: Nginx, Inc.
The ifaddr is already referenced by the rtentry, and we are holding
reference on the rtentry throughout the function execution.
Sponsored by: Netflix
Sponsored by: Nginx, Inc.
machine and ${MACHINE_CPUARCH}. Otherwise the presence of a file named
"x86" or "x86.c" in the make path can cause problems.
Submitted by: lwhsu (original version)
MFC after: 1 month
Centrino 2230 firmware.
This fixes the general statistics block to be actually valid.
I've verified this by contrasting the output of iwnstats before and
after the change. The general block is now correct.
Tested:
* Intel 5100 (old format stats message)
* Intel 2230 (new format stats message)
RADIX_NODE_HEAD_LOCK as grabbing the write lock,
but RADIX_NODE_HEAD_LOCK_ASSERT as checking the read lock.
Submitted by: Vijay Singh <vijju.singh at gmail.com>
MFC after: 1 month
memory attributes. The same applies to the mmap(2) interface. Not
doing so results in machine checks.
We find the memory attributes in the EFI memory map, as queried by
mem_phys2virt().
It is available mostly in A10 devices like Hackberry, Marsboard,
Mele A1000, A2000, A100 HTPC, cubieboard1 and A20 device
like cubieboard2.
TX performance can be improved using both channels 0 and 1.
RX performance is poor and needs improvement with the assistance of
external DMA controller in case there is bulk TCP receiver.
Reviewed by: yongari@
Approved by: stas (mentor)
(pvid=1) and we already configure them to send to other ports.
Setting pvid=portnum would mean that there were separate vlangroups
for each ports, but 'leaking' into other ports. The result? All port
traffic flooded to all other port traffic.
Tested:
* DB120, AR9344 + AR8327 switch
The OpenWRT AR8xxx switch support flushes the ATU (address translation
unit) after each port link 'up' status change. I've modified this to
just flush on any port transition.
Whilst here, bump the number of ports on the AR8327 to 6, rather than
the default of 5. It's DB120 specific; I'll go and make this configurable
later.
There's some debugging code in here still; I am still debugging whether
this is or isn't working fully.
Tested:
* DB120, AR9344 + AR8327 switch
Obtained from: OpenWRT
