Add more regression testing, some of which is expected to fail until we
commit more kernel implementation.
Approved by: re (kib), mentor (rwatson)
Sponsored by: Google Inc
triggered by the same .o being included twice on the command line.
Found by: Nima Misaghian at Sandvine
Reviewed by: kientzle, kaiw
Approved by: re
MFC after: 1 week
the ar9130 code.
Since at least one kernel config specifies individual ath HAL chips
rather than just "device ath_hal" (arm/AVILA), I'm doing this so people
aren't caught out when they update to -HEAD or 9.0 and discover their
ath setup doesn't compile.
I'll revisit this with a proper fix sometime before 9.0-RELEASE.
Approved by: re (kib, blanket)
Pointed out by: ray@
Pointy hat to: adrian@
* Decouple the path supervision using a separate HB timer per path.
* Add support for potentially failed state.
* Bring back RTO.min to 1 second.
* Accept packets on IP-addresses already announced via an ASCONF
* While there: do some cleanups.
Approved by: re@
MFC after: 2 months.
col(1) was mangling the SGR escapes and is not strictly required.
See r222647, r222648, r222650, and r222653 for more details.
Reported by: delphij
Reviewed by: ru
Approved by: re (kib)
MFC after: 3 weeks
the bandwidth of long fat pipes (i.e. 100Mbps+ trans-oceanic or
trans-continental links). Bandwidth-delay products up to 64MB are
supported.
Also add support (not compiled by default) for the None cypher. The
None cypher can only be enabled on non-interactive sessions (those
without a pty where -T was not used) and must be enabled in both
the client and server configuration files and on the client command
line. Additionally, the None cypher will only be activated after
authentication is complete. To enable the None cypher you must add
-DNONE_CIPHER_ENABLED to CFLAGS via the make command line or in
/etc/make.conf.
This code is a style(9) compliant version of these features extracted
from the patches published at:
http://www.psc.edu/networking/projects/hpn-ssh/
Merging this patch has been a collaboration between me and Bjoern.
Reviewed by: bz
Approved by: re (kib), des (maintainer)
systems, in the same way that AR9130 embedded systems work.
This isn't -everything- that is required - the PCI glue still
needs to be taught about the eepromdata hint, along the same
lines as the AHB glue.
Approved by: re (kib, blanket)
proc_attach always frees any struct proc_handle data
that it allocates, but that is supposed to be done
only in error conditions.
PR: bin/158431
Approved by: re (kib)
MFC after: 1 week
o Fix awkward use of braces in combination with mis-indentation.
A mistake, that happened to yield the right behaviour?
o Fix typo in comment.
No functional change.
Approved by: re (blanket)
using vn_fullpath_global(). This fixes f_mntonname if mounting
inside chroot, jail or with relative path as argument.
For unmount in jail, use vn_fullpath_global() to discover
global path from supplied path argument. This fixes unmount in jail.
Reviewed by: pjd, kib
Approved by: re (kib)
MFC after: 2 weeks
In particular:
- fix format specifiers in the DPRINTFs;
- do not use kernel_map for temporal mapping backed by the vnode, this
cannot work since kernel map is a system map. Use exec_map instead.
- ignore error code from an attempt to insert the hole. If supposed hole
is located at the region already populated by .bss, it is not an error.
- correctly translate vm error codes to errno, when appropriate.
Reported and tested by: Rich Naill <rich enterprisesystems net>
Approved by: re (kensmith)
MFC after: 1 week
It seems that "info as" is not much precise on what expect by pseudo-op
.word, by the way.
No MFC is previewed for this patch.
Tested by: andreast, pluknet
Approved by: re (kib)
Juniper's loader is that Juniper's loader maps all of the kernel and
preloaded modules at the right virtual address before jumping into the
kernel. FreeBSD's loader simply maps 16MB using the physical address
and expects the kernel to jump through hoops to relocate itself to
it's virtual address. The problem with the FreeBSD loader's approach is
that it typically maps too much or too little. There's no harm if it's
too much (other than wasting space), but if it's too little then the
kernel will simply not boot, because the first thing the kernel needs
is the bootinfo structure, which is never mapped in that case. The page
fault that early is fatal.
The changes constitute:
1. Do not remap the kernel in locore.S. We're mapped where we need to
be so we can pretty much call into C code after setting up the
stack.
2. With kernload and kernload_ap not set in locore.S, we need to set
them in pmap.c: kernload gets defined when we preserve the TLB1.
Here we also determine the size of the kernel mapped. kernload_ap
is set first thing in the pmap_bootstrap() method.
3. Fix tlb1_map_region() and its use to properly externd the mapped
kernel size to include low-level data structures.
Approved by: re (blanket)
Obtained from: Juniper Networks, Inc
This was reported to the mailing list freebsd-net@freebsd.org
on July 21, 2011 under the subject "LOR with nfsclient sillyrename".
The LOR occurred when nfs_inactive() called vrele(sp->s_dvp)
while holding the vnode lock on the file in s_dvp. This patch
modifies the client so that it performs the vrele(sp->s_dvp)
as a separate task to avoid the LOR. This fix was discussed
with jhb@ and kib@, who both proposed variations of it.
Tested by: pho, jlott at averesystems.com
Submitted by: jhb (earlier version)
Reviewed by: kib
Approved by: re (kib)
MFC after: 2 weeks
zfsvfs->z_log before calling zil_commit(). [1]
Do not call zfs_read() from zfs_getextattr() with the IO_SYNC flag.
Submitted by: Alexander Zagrebin <alex@zagrebin.ru> [1]
Reviewed by: pjd@
Approved by: re (kib)
MFC after: 3 days
This was reported to the mailing list freebsd-net@freebsd.org
on July 21, 2011 under the subject "LOR with nfsclient sillyrename".
The LOR occurred when nfs_inactive() called vrele(sp->s_dvp)
while holding the vnode lock on the file in s_dvp. This patch
modifies the client so that it performs the vrele(sp->s_dvp)
as a separate task to avoid the LOR. This fix was discussed
with jhb@ and kib@, who both proposed variations of it.
Tested by: pho, jlott at averesystems.com
Submitted by: jhb (earlier version)
Reviewed by: kib
Approved by: re (kib)
MFC after: 2 weeks
Mac with this chipset does not initialize AHCI mode unless it is started
from EFI loader. However, legacy ATA mode works.
Submitted by: jkim@ (original version)
Approved by: re (kib)
MFC after: 1 week
truly.
Before 802.11n, the RX descriptor list would employ the "self-linked tail
descriptor" trick which linked the last descriptor back to itself.
This way, the RX engine would never hit the "end" of the list and stop
processing RX (and assert RXEOL) as it never hit a descriptor whose next
pointer was 0. It would just keep overwriting the last descriptor until
the software freed up some more RX descriptors and chained them onto the
end.
For 802.11n, this needs to stop as a self-linked RX descriptor tickles the
block-ack logic into ACK'ing whatever frames are received into that
self-linked descriptor - so in very busy periods, you could end up with
A-MPDU traffic that is ACKed but never received by the 802.11 stack.
This would cause some confusion as the ADDBA windows would suddenly
be out of sync.
So when that occured here, the last descriptor would be hit and the PCU
logic would stop. It would only start again when the RX descriptor list
was updated and the PCU RX engine was re-tickled. That wasn't being done,
so RXEOL would be continuously asserted and no RX would continue.
This patch introduces a new flag - sc->sc_kickpcu - which when set,
signals the RX task to kick the PCU after its processed whatever packets
it can. This way completed packets aren't discarded.
In case some other task gets called which resets the hardware, don't
update sc->sc_imask - instead, just update the hardware interrupt mask
directly and let either ath_rx_proc() or ath_reset() restore the imask
to its former setting.
Note: this bug was only triggered when doing a whole lot of frame snooping
with serial console IO in the RX task. This would defer interrupt processing
enough to cause an RX descriptor overflow. It doesn't happen in normal
conditions.
Approved by: re (kib, blanket)
configured swap devices in the Linux-compatible format.
Based on the submission by: Robert Millan <rmh debian org>
PR: kern/159281
Reviewed by: bde
Approved by: re (kensmith)
MFC after: 2 weeks
dynamic memory allocation to hold per-CPU memory types data (sized to
mp_maxid for UMA, and to mp_maxcpus for malloc to match the kernel).
That fixes libmemstat with arbitrary large MAXCPU values and therefore
eliminates MEMSTAT_ERROR_TOOMANYCPUS error type.
Reviewed by: jhb
Approved by: re (kib)
recursive vnode lock on the directory for the case where the
new file name is in the same directory as the old one. The patch
handles this as a special case, recognized by the new directory
having the same file handle as the old one and just VREF()s the old
dir vnode for this case, instead of doing a second VFS_FHTOVP() to get it.
This is required so that the server will work for file systems like
msdosfs, that do not support recursive vnode locking.
This problem was discovered during recent testing by pho@
when exporting an msdosfs file system via the new NFS server.
Tested by: pho
Reviewed by: zkirsch
Approved by: re (kib)
MFC after: 2 weeks
interrupt storm.
This is easily triggered by flipping on and off tcpdump -y IEEE802_11_RADIO
w/ witness enabled. This causes a whole lot of console IO and when you're
attached to a serial console (eg on my AR7161 embedded board), the RX
interrupt doesn't get called quickly enough and the RX queue fills up.
This wasn't a problem in the past because of the self-linked RX descriptor
trick - the RX would never hit the "end" of the RX descriptor list.
However this isn't possible for 802.11n (see previous commit history for
why.)
Both Linux ath9k and the Atheros reference driver code do this; I'm just
looking now for where they then restart the PCU receive. Right now the RX
will just stop until the interface is reset.
Obtained from: Linux, Atheros
Approved by: re (kib)
The AR9280 apparently has an issue with descriptors which straddle a page
boundary (4k). I'm not yet sure whether I should use PAGE_SIZE in the
calculations or whether I should use 4096; the reference code uses 4096.
This patch fiddles with descriptor allocation so a descriptor entry
doesn't straddle a 4kb address boundary. The descriptor memory allocation
is made larger to contain extra descriptors and then the descriptor
address is advanced to the next 4kb boundary where needed.
I've tested this both on Merlin (AR9280) and non-Merlin (in this case,
AR9160.)
Obtained from: Linux, Atheros
Approved by: re (kib)
