smh [Tue, 15 Dec 2015 14:17:07 +0000 (14:17 +0000)]
Add flag to disable inital reboot(8) userland sync
Add -N flag to reboot(8) which bypasses the userland sync(2) during
reboot(8) while still allow the kernel sync during the reboot(2) syscall
to occur.
An example use of this is when rebooting with disconnected iSCSI sessions
which would otherwise cause the reboot to hang on BIOs that will never
complete.
skra [Tue, 15 Dec 2015 13:17:40 +0000 (13:17 +0000)]
Flush intermediate TLB cache when L2 page table is unlinked.
This fixes an issue observed on Cortex A7 (RPi2) and on Cortex A15
(Jetson TK1) causing various memory corruptions. It turned out that
even L2 page table with no valid mapping might be a subject of such
caching.
Note that not all platforms have intermediate TLB caching implemented.
An open question is if this fix is sufficient for all platforms with
this feature.
royger [Tue, 15 Dec 2015 11:20:20 +0000 (11:20 +0000)]
hyperv/kvp: wake up the daemon if it's sleeping due to poll()
Without the patch, there is a race condition: when poll() is invoked(),
if kvp_globals.daemon_busy is false, the daemon won't be timely
woke up, because hv_kvp_send_msg_to_daemon() can't wake up the daemon
in this case.
Submitted by: Dexuan Cui <decui@microsoft.com>
Sponsored by: Microsoft OSTC
Reviewed by: delphij, royger
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D4258
royger [Tue, 15 Dec 2015 10:07:03 +0000 (10:07 +0000)]
x86/bounce: try to always completely fill bounce pages
Current code doesn't try to make use of the full page when bouncing because
the size is only expanded to be a multiple of the alignment. Instead try to
always create segments of PAGE_SIZE when using bounce pages.
This allows us to remove the specific casing done for
BUS_DMA_KEEP_PG_OFFSET, since the requirement is to make sure the offsets
into contiguous segments are aligned, and now this is done by default.
adrian [Tue, 15 Dec 2015 04:43:28 +0000 (04:43 +0000)]
[arge] add a comment about needing mdio busses in order to use the interface.
This is a holdover from how reset is handled in the ARGE_MDIO world.
You need to define the mdio bus device if you want to use the ethernet
device or the arge setup path doesn't bring the MAC out of reset.
bdrewery [Tue, 15 Dec 2015 02:46:14 +0000 (02:46 +0000)]
DIRDEPS_BUILD: Fix incorrectly adding in RELDIR for DIRDEPS in bootstrapping.
This is not wrong, but was unexpected. Using <empty>:H results in '.' which
then using the rest of the conversion was added in RELDIR. This was also
causing an empty _DP_DIRDEPS to resolve to SRCTOP for DIRDEPS.
jhb [Tue, 15 Dec 2015 00:05:07 +0000 (00:05 +0000)]
Start on a new library (libsysdecode) that provides routines for decoding
system call information such as system call arguments. Initially this
will consist of pulling duplicated code out of truss and kdump though it
may prove useful for other utilities in the future.
This commit moves the shared utrace(2) record parser out of kdump into
the library and updates kdump and truss to use it. One difference from
the previous version is that the library version treats unknown events
that start with the "RTLD" signature as unknown events. This simplifies
the interface and allows the consumer to decide how to handle all
non-recognized events. Instead, this function only generates a string
description for known malloc() and RTLD records.
bdrewery [Mon, 14 Dec 2015 23:25:31 +0000 (23:25 +0000)]
Follow-up r290423: Don't use CSH for buildenv shell.
It does not properly import PATH; the PATH is reset by included profile
files on startup which breaks the biggest feature of buildenv (using
sysrooted cc from WORLDTMP)
cem [Mon, 14 Dec 2015 22:01:52 +0000 (22:01 +0000)]
ioat(4): Add support for interrupt coalescing
In I/OAT, this is done through the INTRDELAY register. On supported
platforms, this register can coalesce interrupts in a set period to
avoid excessive interrupt load for small descriptor workflows. The
period is configurable anywhere from 1 microsecond to 16.38
milliseconds, in microsecond granularity.
kp [Mon, 14 Dec 2015 19:44:49 +0000 (19:44 +0000)]
inet6: Do not assume every interface has ip6 enabled.
Certain interfaces (e.g. pfsync0) do not have ip6 addresses (in other words,
ifp->if_afdata[AF_INET6] is NULL). Ensure we don't panic when the MTU is
updated.
pfsync interfaces will never have ip6 support, because it's explicitly disabled
in in6_domifattach().
asomers [Mon, 14 Dec 2015 19:40:47 +0000 (19:40 +0000)]
Don't retry SAS commands in response to protocol errors
sys/dev/mpr/mpr_sas_lsi.c
sys/dev/mps/mps_sas_lsi.c
When mp[rs]sas_get_sata_identify returns
MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR, don't bother retrying. Protocol
errors aren't likely to be fixed by sleeping.
Without this change, a system that generated may protocol errors due
to signal integrity issues was taking more than an hour to boot, due
to all the retries.
In r289315, I added new fields to res_state. This broke binary
backward compatibility. It also broke some ports (and possibly
other code) by requiring the definition of time_t and struct timespec.
Fix these problems by moving the new fields into __res_state_ext.
Suggested by: ume
Reviewed by: ume
MFC after: 3 days
Sponsored by: Dell Inc.
Differential Revision: https://reviews.freebsd.org/D4472
andrew [Mon, 14 Dec 2015 17:08:40 +0000 (17:08 +0000)]
Update the handling of interrupts on the generic PCIe driver:
* Use the interrupt-map property to route interrupts
* Remove the IRQ rman, it's now unneeded
* Support MSI/MSI-X interrupts
With this I'm able to use the two NICs I've tested (em and msk), however
while I can boot with an AHCI devie attached it fails when any drives are
connected.
Obtained from: ABT Systems Ltd
Sponsored by: SoftIron Inc
andrew [Mon, 14 Dec 2015 16:07:20 +0000 (16:07 +0000)]
Add support for MSI interrupts to the gicv2m controller. The allocation
is still quite simplistic, it just increments a counter to use the next
interrupt.
Obtained from: ABT Systems Ltd
Sponsored by: SoftIron Inc
avos [Mon, 14 Dec 2015 13:05:16 +0000 (13:05 +0000)]
urtwn: fix frame processing in the Rx path.
Currently, in case when npkts >= 2, RSSI and Rx radiotap fields
will be overridden by the next packet. As a result, every packet
from this chain will use the same RSSI / radiotap data.
After this change, RSSI and radiotap structure will be filled
for every frame right before ieee80211_input() call.
Tested with RTL8188EU / RTL8188CUS, STA and MONITOR modes.
Reviewed by: kevlo
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D4487
andrew [Mon, 14 Dec 2015 11:13:50 +0000 (11:13 +0000)]
When exiting two-finger scroll the Synaptics device may report a jump in
absolute position. This seems to be correlated with only removing a single
finger. To work around this report no movement on from the first packet
when the user exits scrolling.
andrew [Mon, 14 Dec 2015 10:06:01 +0000 (10:06 +0000)]
Skip restoring more registers when returning from an exception taken in
the kernel. These registers are all callee saved, and as such will be
restored before returning to the exception handler.
Userland still needs these registers to be restored as they may be changed
by the kernel and we don't currently track these places.
melifaro [Sun, 13 Dec 2015 16:37:01 +0000 (16:37 +0000)]
Fix PINNED routes handling.
Before r291643, adding new interface prefix had the following logic:
try_add:
EEXIST && (PINNED) {
try_del(w/o PINNED flag)
if (OK)
try_add(PINNED)
}
In r291643, deletion was performed w/ PINNED flag held which leaded
to new interface prefixes (like ::1) overriding older ones.
Fix this by requesting deletion w/o RTF_PINNED.
PR: kern/205285
Submitted by: Fabian Keil <fk at fabiankeil.de>
mmel [Sun, 13 Dec 2015 09:05:55 +0000 (09:05 +0000)]
SIMPLEBUS: Don't panic if child device doesn't have devinfo set.
Strictly speaking, missing devinfo is error which can be caused
by instantiating child using device_add_child() instead of
BUS_ADD_CHILD(). However, we can tolerate it.
mmel [Sun, 13 Dec 2015 08:17:49 +0000 (08:17 +0000)]
OFW: Add helper functions for parsing xref based lists.
By using this functions, we can parse a list of tuples, each of them holds
xref and variable number of values.
This kind of list is used in DT for clocks, gpios, resets ...
melifaro [Sun, 13 Dec 2015 07:39:49 +0000 (07:39 +0000)]
Remove LLE read lock from IPv6 fast path.
LLE structure is mostly unchanged during its lifecycle: there are only 2
things relevant for fast path lookup code:
1) link-level address change. Since r286722, these updates are performed
under AFDATA WLOCK.
2) Some sort of feedback indicating that this particular entry is used so
we send NS to perform reachability verification instead of expiring entry.
The only signal that is needed from fast path is something like binary
yes/no.
The latter is solved by the following changes:
Special r_skip_req (introduced in D3688) value is used for fast path feedback.
It is read lockless by fast path, but updated under req_mutex mutex. If this
field is non-zero, then fast path will acquire lock and set it back to 0.
After transitioning to STALE state, callout timer is armed to run each
V_nd6_delay seconds to make sure that if packet was transmitted at the start
of given interval, we would be able to switch to PROBE state in V_nd6_delay
seconds as user expects.
(in STALE state) timer is rescheduled until original V_nd6_gctimer expires
keeping lle in STALE state (remaining timer value stored in lle_remtime).
(in STALE state) timer is rescheduled if packet was transmitted less that
V_nd6_delay seconds ago to make sure we transition to PROBE state exactly
after V_n6_delay seconds.
As a result, all packets towards lle in REACHABLE/STALE/PROBE states are handled
by fast path without acquiring lle read lock.
ume [Sat, 12 Dec 2015 14:42:50 +0000 (14:42 +0000)]
RFC 3493 requires ignoring the loopback address for A_ADDRCONFIG.
Since it breaks certain jail setup, we ignore just 127.0.0.1
instead of whole loopback address range.
kib [Sat, 12 Dec 2015 14:08:29 +0000 (14:08 +0000)]
In md(4) over vnode, correct handling of the unaligned unmapped io
requests which page alignment + size is greater than MAXPHYS. Right
now md(4) over vnode would use the physical buffer of the size MAXPHYS
to map a data of size MAXPHYS + page offset of the user buffer. This
typically corrupts next pbuf, or, if the pbuf used was the last pbuf
in the map, the next page after the pbuf's map.
Split request up to the size of io which fits into pbuf KVA with
alignment, and retry if a part of the bio is left unprocessed.
Reported by: Fabian Keil <fk@fabiankeil.de>
Tested by: Fabian Keil, pho
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
ak [Fri, 11 Dec 2015 23:52:08 +0000 (23:52 +0000)]
- Allow to extract symlinks
- Implement 4-digit year format listing (-y option)
- Improve detection of text files
- Use %ju for error_count as it is unsigned
emaste [Fri, 11 Dec 2015 20:28:27 +0000 (20:28 +0000)]
Update to ELF Tool Chain r3272
Highlights (not already in the FreeBSD tree):
- addr2line: Speed up and support searching inlined functions
- addr2line: Support -i, -a, -p options
- readelf: Add some ARM relocation types
- readelf, libelf: Avoid reading beyond end of buffer/file
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
markj [Fri, 11 Dec 2015 20:05:07 +0000 (20:05 +0000)]
Don't make assertions about td_critnest when the scheduler is stopped.
A panicking thread always executes with a critical section held, so any
attempt to allocate or free memory while dumping will otherwise cause a
second panic. This can occur, for example, if xpt_polled_action() completes
non-dump I/O that was pending at the time of the panic. The fact that this
can occur is itself a bug, but asserting in this case does little but
reduce the reliability of kernel dumps.
emaste [Fri, 11 Dec 2015 18:47:41 +0000 (18:47 +0000)]
elfcopy: include extension but replace . when converting from binary
The change in r291958 was not consistent with GNU objcopy. The start,
end and size symbols created for ELF objects converted from binary need
to include the full filename including the extension, but with the
periods replaced with underscores.
Reviewed by: imp
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D4474
imp [Fri, 11 Dec 2015 16:51:04 +0000 (16:51 +0000)]
Correct the CONFIG0_VI value. According to
http://www.t-es-t.hu/download/mips/md00090c.pdf this is bit 3 of the
config0 word, not bit 2. This should fix virtually indexed caches
(relatively new in the MIPS world, so no current platforms used this
and current code just uses it as an optimization). It was causing
false positives on newer platforms that default to large values for
the kseg0 cache coherency attribute.
projects / FreeBSD / FreeBSD.git / log