In most cases kernel.bootfile is populated from the information
provided by loader(8). There are certain scenarios when loader
is not available, for instance when kernel is loaded by u-boot
or some other BootROM directly. In this case the default value
"/kernel" points to invalid location and breaks some functinality,
like using installkernel on self-hosted system or dtrace's CTF
lookup. This can be fixed by setting the value manually but the
default that reflects correct location is better than default that
points to invalid one.
Current default was set around FreeBSD 1, when "/kernel" was the
actual path. Transition to /boot/kernel/kernel happened circa FreeBSD 3.
PR: 221550
Reviewed by: ian, imp
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D18902
CAM_RESRC_UNAVAIL instead of CAM_REQUEUE_REQ. This makes CAM delay a bit
before retrying, so that the retries actually get a chance to succeed.
Reviewed by: sbruno
MFC after: 2 weeks
Sponsored by: Klara Inc.
Differential Revision: https://reviews.freebsd.org/D19696
It makes the code slightly easier to follow, and might make
it easier to fix the resouce accounting to also account for
the interpreter.
The PROC_UNLOCK() is moved earlier - I don't see anything
it should protect; the lim_max() is a wrapper around lim_rlimit(),
and that, differently from lim_rlimit_proc(), doesn't require
the proc lock to be held.
Reviewed by: kib
MFC after: 2 weeks
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D19689
was unlocked and yet the bucket-unlock flag was not
changed to false. This can cause a panic if INVARIANTS
is on and we go through the right path (though rare).
Reported by: syzbot+179a1ad49f3c4c215fa2@syzkaller.appspotmail.com
Reviewed by: tuexen@
MFC after: 1 week
* Cache moea64_need_lock in a local variable; gcc generates slightly better
code this way, it doesn't need to reload the value from memory each read.
* VPN cropping is only needed on PowerPC ISA 2.02 and older cores, a subset
of those that need serialization, so move this under the need_lock check,
so those that don't need the lock don't even need to check this.
This allows for directives such as
makeoptions DTS+=/out/of/tree/myboard.dts
# in tree! Same rules applied as if this were in a dtb/ module
makeoptions DTS+=otherboard.dts
to be specified in config(5) and have these built/installed alongside th
kernel. The assumption that overlays live in an overlays/ directory is only
made for in-tree DTSO, but we still make the assumption that out-of-tree
arm64 DTS will be in vendored directories (for now).
This lowers the cost to hacking on an overlay or dts by being able to
quickly throw it in a custom config, especially if it doesn't fit one of the
current dtb/modules quite appropriately or it's not intended for commit
there.
The build/install targets were split out of dtb.mk to centralize the build
logic and leave out the all/realinstall/CLEANFILES additions... it was
believed that we didn't want to pollute the kernel build with these.
The build rules were converted to suffix rules at the suggestion of Ian to
clean things up a little bit in a world where we can have mixed
in-tree/out-of-tree DTS/DTSO specified.
Reviewed by: ian
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D19351
A sysid of 0 denotes the local system, and some handlers for remote
locking commands do not attempt to deal with local locks. Note that
F_SETLK_REMOTE is only available to privileged users as it is intended
to be used as a testing interface.
Reviewed by: kib
Reported by: syzbot+9c457a6ae014a3281eb8@syzkaller.appspotmail.com
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D19702
The current kernel C-type macros might obscurely hide the fact that
the input argument might be used multiple times.
This breaks code like:
isalpha(*ptr++)
Use static inline functions instead of macros to fix this.
Reviewed by: kib @
Differential Revision: https://reviews.freebsd.org/D19694
MFC after: 1 week
Sponsored by: Mellanox Technologies
AR724X_GPIO_PINS used for this family is defined as 18
The datasheet for the AR7241 describes 20 pins, allow all to be used.
Submitted by: Hiroki Mori <yamori813@yahoo.co.jp>
Reviewed by: mizhka
Differential Revision: https://reviews.freebsd.org/D17580
TMPFS_PAGES_MINRESERVED controls how much memory is reserved for the system
and not used by tmpfs.
On very small memory systems, the default value may be too high and this
prevents these small memory systems from using reroot, which is required
for them to install firmware updates.
Submitted by: Hiroki Mori <yamori813@yahoo.co.jp>
Reviewed by: mizhka
Differential Revision: https://reviews.freebsd.org/D13583
While geom_flashmap has always supported label names for its slices, it does
so by appending "s.labelname" to the provider device name, meaning you still
have to know the name and unit of the hardware device to use the labels.
These changes add support for device-independent geom_flashmap labels, using
the standard geom_label infrastructure. geom_flashmap now creates a softc
struct attached to its geom, and as it creates slices it stores the label
into an array in the softc. The new geom_label_flashmap uses those labels
when tasting a geom_flashmap provider.
Differential Revision: https://reviews.freebsd.org/D19535
are successfully returned by the card (usually due to an abort being issued
as part of timeout recovery). Remove what amounts to an insufficient
KASSERT, and don't overwrite the state value. State should probably be
re-designed, and that will be done with a future commit.
Reported by: phk, bei.io
Reviewed by: imp, mav
Differential Revision: D19677
There are only 19 bytes available for the name of an interrupt plus the
name(s) of handlers/drivers using it. There is a mechanism from the days of
shared interrupts that replaces some of the handler names with '+' when they
don't all fit into 19 bytes.
In modern times there is typically only one device on an interrupt, but long
device names are the norm, especially with embedded systems. Also, in systems
with multiple interrupt controllers, the names of the interrupts themselves
can be long. For example, 'gic0,s54: imx6_anatop0' doesn't fit, and
replacing the device driver name with a '+' provides no useful info at all.
When there is only one handler but its name was too long to fit, this
change truncates enough leading chars of the handler name (replacing them
with a '-' char to indicate that some chars are missing) to use all 19
bytes, preserving the unit number typically on the end of the name. Using
the prior example, this results in: 'gic0,s54:-6_anatop0' which provides
plenty of info to figure out which device is involved.
PR: 211946
Reviewed by: gonzo@ (prior version without the '-' char)
Differential Revision: https://reviews.freebsd.org/D19675
For 32-bit Linuxulator, ipc() syscall was historically
the entry point for the IPC API. Starting in Linux 4.18, direct
syscalls are provided for the IPC. Enable it.
MFC after: 1 month
AMD64_SET_**BASE expects a pointer to a pointer, we just passing in the pointer value itself.
Set PCB_FULL_IRET for doreti to restore %fs, %gs and its correspondig base.
PR: 225105
Reported by: trasz@
MFC after: 1 month
SCTP_SENDALL flag. Allow also only one operation per SCTP endpoint.
This fixes an issue found by running syzkaller and is joint work with rrs@.
MFC after: 1 week
r343532 noted the difference between "hw.realmem" and "hw.physmem", which I
was previously unaware of. I discovered that neither sysctl had a
description visible via `sysctl -d', so I found where they were defined and
added suitable descriptions. While in the file, I went ahead and added
descriptions for all the others which lacked them. I also updated sysctl.3
accordingly
Reviewed by: kib, bcr
MFC after: 1 weeks
Sponsored by: Panasas
Differential Revision: https://reviews.freebsd.org/D19007
Otherwise resulting address from vm_map_find() migh not satisfy the
upper limit. For instance, it could affect MAP_32BIT flag from 64bit
processes.
Found by: Doug Moore <dougm@rice.edu>
Reviewed by: alc, Doug Moore <dougm@rice.edu>
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D19688
TPM has a built-in RNG, with its own entropy source.
The driver was extended to harvest 16 random bytes from TPM every 10 seconds.
A new build option "TPM_HARVEST" was introduced - for now, however, it
is not enabled by default in the GENERIC config.
Submitted by: Kornel Duleba <mindal@semihalf.com>
Reviewed by: markm, delphij
Approved by: secteam
Obtained from: Semihalf
Sponsored by: Stormshield
Differential Revision: https://reviews.freebsd.org/D19620
Attempting to build www/firefox on POWER9 resulted in a HMI exception being
thrown, a fatal trap currently. This is typically caused by timer facility
errors, but examination of the Hypervisor Maintenance Exception Register
(HMER) yielded only that an exception had recovered, with no information of
the actual exception cause.
When an HMI occurs, OPAL_HANDLE_HMI or OPAL_HANDLE_HMI2 must be called to
handle the exception at the firmware level. If the exception is handled, we
can continue.
This adds only the preliminary handler, enough to prevent package building
from panicking. An enhancement in the future is to use the flags returned
by OPAL_HANDLE_HMI2 to print more useful error messages, and log maintenance
events.
Reviewed by: luporl
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D19634
After latest binding update, this patch enables usage of
the switch on Armada 3720 EspressoBin, so compile it
by default with arm64 GENERIC.
A patch was extracted from https://reviews.freebsd.org/D19036
Submitted by: Bert JW Regeer <xistence@0x58.com>
Reviewed by: manu
In the latest Linux kernel revisions the DSA (Distributed
Switch Architecture) device tree binding was changed.
Instead of the top level dsa@ node, the switch and its
ports is represented as a child node of the mdio bus.
With that other modifications were added, such as
relation with the ethernet port of the SoC. Adjust
e6000sw etherswitch and mvneta drivers to that.
Tested on Armada 3720 EspressoBin and Armada 388 Clearfog Pro boards.
Submitted by: Bert JW Regeer <xistence@0x58.com>
Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D19036
r345402 fixed the bug that led to the split of the ISA 3.0 HPT handling from
the existing manager. The cause of the bug was gcc moving the register
holding VPN to a different register (not r0), which triggered bizarre
behaviors. With the fix, things work, so they can be re-merged. No
performance lost with the merge.
I overlooked the fact that that VOP_FSYNC() call is not a FreeBSD VFS
call, but a macro that provides an illumos-compatible wrapper for the
FreeBSD operation.
PR: 236475
Reported by: lwhsu
Pointyhat to: avg
