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.
Reviewed by: bjk
MFC after: 2 weeks
Sponsored by: Multiplay
Differential Revision: https://reviews.freebsd.org/D4449
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.
Approved by: kib (mentor)
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
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.
Sponsored by: Citrix Systems R&D
Reviewed by: hps, kib
Differential revision: https://reviews.freebsd.org/D4119
panics when unloading the dummynet and IPFW modules:
- The callout drain function can sleep and should not be called having
a non-sleepable lock locked. Remove locks around "ipfw_dyn_uninit(0)".
- Add a new "dn_gone" variable to prevent asynchronous restart of
dummynet callouts when unloading the dummynet kernel module.
- Call "dn_reschedule()" locked so that "dn_gone" can be set and
checked atomically with regard to starting a new callout.
Reviewed by: hiren
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D3855
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.
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.
Sponsored by: EMC / Isilon Storage Division
This logic is potentially included multiple times, so overwrite the temporary
variable rather than append to it.
Sponsored by: EMC / Isilon Storage Division
This is because LDADD+=-lFOO is not the same as LDADD+=-lprivateFOO which is
what the private libs in LIBADD are.
Sponsored by: EMC / Isilon Storage Division
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.
Reviewed by: bdrewery
Differential Revision: https://reviews.freebsd.org/D4537
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)
Spotted by: smh, kib
Sponsored by: EMC / Isilon Storage Division
The new flag, -c <period>, sets the interrupt coalescing period in
microseconds through the new ioat(4) API ioat_set_interrupt_coalesce().
Also add a -z flag to zero ioat statistics before tests, to make it easy
to measure results.
Sponsored by: EMC / Isilon Storage Division
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.
Sponsored by: EMC / Isilon Storage Division
directly into a loader (and thus kernel) env var, using the syntax
ubenv import ldvarname=ubvarname
Without the varname= prefix it uses the historical behavior of importing
to the name uboot.ubvarname.
Tested with RTL8188EU and RTL8188CUS in STA mode.
Reviewed by: kevlo
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D4523
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().
PR: 205194
Reviewed by: melifaro, hrs
Differential Revision: https://reviews.freebsd.org/D4522
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.
Reviewed by: slm
MFC after: 4 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D4553
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
* 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
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
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.
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.
