I mistakenly added a lock assertion to this routine at the last minute
without confirming it was held during g_mirror_create. It isn't (it isn't
even initialized yet). Mea culpa. Access is exclusive in both callers,
just not always by that particular lock.
Reported by: lwhsu
X-MFC-With: r341840, r341674
Add a man page for ptnet(4), describing the guest driver for netmap passthrough.
Reviewed by: bcr
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D18518
If bus_dmamap_load_mbuf() fails following a defrag, the caller of
bwn_dma_tx_start() would free the original mbuf after m_defrag() had
already done so. Fix this by returning the defragged mbuf to the
caller instead. Update bwn_pio_tx_start() similarly for consistency.
Reported by: Ilja Van Sprundel <ivansprundel@ioactive.com>
Reviewed by: landonf
Tested by: landonf
MFC after: 3 days
admbug: 820
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D18342
PR: 217505
Submitted by: John O. Brickley <obryan.brickley@gmail.com>, updated by Maciej Pasternacki <maciej@pasternacki.net>
Reported by: John O. Brickley <obryan.brickley@gmail.com>
MFC after: 1 week
r341674 inadvertently introduced a bug where newer mirror components being
tasted would clear the high sc_flags that are not controlled by component
metadata, such as G_MIRROR_DEVICE_FLAG_TASTING. This could plausibly expose
a small window of time during STARTING where device destruction might race
with mirror component addition, probably resulting in a crash.
Reviewed by: markj
X-MFC-With: r341674
Differential Revision: https://reviews.freebsd.org/D18521
This fixes the obscure endless loop seen with case-insensitive
patterns containing characters in 128-255 range; originally
found running GNU grep test suite.
Our regex implementation being kludgy translates the characters
in case-insensitive pattern to bracket expression containing both
cases for the character and doesn't correctly handle the case when
original character is in bitmap and the other case is not, falling
into the endless loop going through in p_bracket(), ordinary(),
and bothcases().
Reducing the bitmap to 0-127 range for multibyte locales solves this
as none of these characters have other case mapping outside of bitmap.
We are also safe in the case when the original character outside of
bitmap has other case mapping in the bitmap (there are several of those
in our current ctype maps having unidirectional mapping into bitmap).
Reviewed by: bapt, kevans, pfg
Differential revision: https://reviews.freebsd.org/D18302
Also use caph_cache_catpages() to ensure that strerror() works when
run with kern.trap_enotcap=1.
Reviewed by: oshogbo
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D18514
check hash to the filesystem inodes. Access attempts to files
associated with an inode with an invalid check hash will fail with
EINVAL (Invalid argument). Access is reestablished after an fsck
is run to find and validate the inodes with invalid check-hashes.
This check avoids a class of filesystem panics related to corrupted
inodes. The hash is done using crc32c.
Note this check-hash is for the inode itself and not any of its
indirect blocks. Check-hash validation may be extended to also
cover indirect block pointers, but that will be a separate (and
more costly) feature.
Check hashes are added only to UFS2 and not to UFS1 as UFS1 is
primarily used in embedded systems with small memories and low-powered
processors which need as light-weight a filesystem as possible.
Reviewed by: kib
Tested by: Peter Holm
Sponsored by: Netflix
Use ATF_TC_CLEANUP(), because that means the cleanup code will get
called even if a test fails. Before it would only be executed if every
test within the body succeeded.
Reported by: Marie Helene Kvello-Aune <marieheleneka@gmail.com>
MFC after: 2 weeks
Explicitly mark these tests as requiring root rights. We need to be able
to open /dev/pf.
Reported by: Marie Helene Kvello-Aune <marieheleneka@gmail.com>
MFC after: 2 weeks
Mainly states of established TCP connections would be affected resulting
in immediate state removal once the number of states is bigger than
adaptive.start. Disabling adaptive timeouts is a workaround to avoid this bug.
Issue found and initial diff by Mathieu Blanc (mathieu.blanc at cea dot fr)
Reported by: Andreas Longwitz <longwitz AT incore.de>
Obtained from: OpenBSD
MFC after: 2 weeks
There was a large refactoring done in CTL to allow multiple ioctl frontend
ports (and respective devices) to be created, particularly for bhyve.
Unfortunately, respective part of bhyve functionality got lost somehow from
the original virtio-scsi commit. This change allows wanted device path to
be specified in either of two ways:
-s 6,virtio-scsi,/dev/cam/ctl1.1
-s 6,virtio-scsi,dev=/dev/cam/ctl2.3
If neither is specified, the default /dev/cam/ctl device is used.
While there, remove per-queue CTL device opening, which makes no sense at
this point.
Reported by: wg
Reviewed by: araujo
MFC after: 3 days
Sponsored by: iXsystems, Inc.
Differential Revision: https://reviews.freebsd.org/D18504
r336560 was supposed to restore pre-r323954 behaviour when tx_abdicate is
not set (the default case). However, it appears that rather than the drainage
check being made conditional on tx_abdicate being set, it was duplicated
so it occured twice if tx_abdicate was set and once if it was not.
Now when !tx_abdicate, drainage is only checked if the doorbell isn't
pending.
Reported by: lev
MFC after: 1 week
Sponsored by: Limelight Networks
The error was caused by map_ucode() casting a vm_paddr_t to a void *.
Use a uintptr_t instead to match the caller. Fix some style bugs while
here.
Reported by: bde
Reviewed by: bde
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
It is a function call only to accomodate *some* ABIs which install a hook.
They only care for 3 types of limits: DATA, STACK, VMEM
Instead of always calling the func, see at compilation time if the requested
limit is something else and just do the read if so.
Sponsored by: The FreeBSD Foundation
to shrink libllvm.a.
This is a workaround for "relocation truncated to fit" errors with BFD
ld 2.17.50 on arm and armv6, when linking executables against it.
The required range extensions are not yet supported by this very old
version of BFD ld. When arm and armv6 userland can be successfully
linked by lld, this workaround can be removed.
initialize the controller.
According to the datasheet, the old code checks if port 2 (P2E, 0x4) was
the only enabled port (except port 0, which was ignored by mask 0xfe),
and issue a write to the PCS register to disable all but port 0, right
before ahci_ctlr_reset.
Some other operating systems would issue a port enable to all ports, but
since the current code only does the special initialization for ICH8M,
it entirely and rely on BIOS to do the right thing (the alternative
would be https://reviews.freebsd.org/D18300?id=50922 , should we see
reports that we really need to do it).
Reviewed by: mav
MFC after: 3 months
Differential Revision: https://reviews.freebsd.org/D18300
Bootstacks are unused after APs executed sched_throw() in
init_secondary_tail() and started executing on proper idle thread
stack. Add sysinit that detects that the idle thread for each CPU was
scheduled at least once, and free corresponding bootstack.
Slight addition of the code (~200 bytes) is compensated by the saving,
because even on typical small modern desktop CPU we leak 128K of
memory otherwise (4 pages x 8 threads).
Reviewed by: jhb
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D18486
There is no reason for it to behave differently from openat(fd, NULL).
Also the handling did not worked because the substituted path was from
the system address space, causing EFAULT.
Submitted by: Jack Halford <jack@gandi.net>
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D18501
Inline tests for PTE_* bits are easy to read and don't really require a
predicate function, and predicates which operate on a pt_entry_t are
inconvenient when working with L1 and L2 page table entries.
Reviewed by: jhb
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D18461
The code was a near exact copy of the code in startup, but it doesn't need
the complexity since the kernel is already relocated. With
VM_MIN_KERNEL_ADDRESS as currently set to KERNBASE, this doesn't cause a
problem, because it's a zero offset. However, when KERNBASE is changed to a
physical load address, it then has a non-zero offset, and ends up with an
invalid stack pointer, causing the AP to hang.
'read' pessimistically read(2)s one byte at a time, which can be quite
silly for large environments in slow emulators.
In my boring user environment, truss shows that the number of read()
syscalls to source rc.subr and invoke list_vars is reduced by something like
3400 to 60. ministat(1) shows a significant time difference of about -71%
for my environment.
Suggested by: jilles
Discussed with: dteske, jhb, jilles
Differential Revision: https://reviews.freebsd.org/D18481
Once a signal's siginfo was copied to 'td_si' as part of the signal
exchange in issignal(), it was never cleared. This caused future
thread events that are reported as SIGTRAP events without signal
information to report the stale siginfo in 'td_si'. For example, if a
debugger created a new process and used SIGSTOP to stop it after
PT_ATTACH, future system call entry / exit events would set PL_FLAG_SI
with the SIGSTOP siginfo in pl_siginfo. This broke 'catch syscall' in
current versions of gdb as it assumed PL_FLAG_SI with SIGTRAP
indicates a breakpoint or single step trap.
Reviewed by: kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D18487
opcode will be printed. This should solve the problem, when protocol
name is not printed in `ipfw -N show`.
Reported by: Claudio Eichenberger <cei at yourshop.com>
MFC after: 1 week
This change adds a hypervisor trap handler for exception 0x1500 (soft patch),
normalizing all VSX registers and returning.
This avoids a kernel panic due to unknown exception.
Change made with the collaboration of leonardo.bianconi_eldorado.org.br,
that found out that this is a hypervisor exception and not a supervisor one,
and fixed this in the code.
Reviewed by: jhibbits, sbruno
Differential Revision: https://reviews.freebsd.org/D17806
The wpa update added some source files with the same name as a file in
another directory (found via .PATH in the previous version). Having a
stale entry in a .depend file means the new file won't be built, so test
for this case and if found remove all of wpa's dependency files.
MFC with: r341759
Sponsored by: The FreeBSD Foundation
