Commit 774a36851e fixed the NFS server so that it could handle
ERELOOKUP returns from VOP calls by redoing the operation/RPC.
However, for NFSv4.0, redoing an Open would increment
the open_owner's seqid multiple times, breaking the protocol.
This patch sets a new flag called ND_ERELOOKUP on the RPC when
a redo is in progress. Then the code that increments the seqid
avoids the seqid increment/check when the flag is set, since
it indicates this has already been done for the Open.
r367672 modified UFS such that certain VOPs, such as
VOP_CREATE() will intermittently return ERELOOKUP.
When this happens, the entire system call, or NFS
operation in the case of the NFS server, must be redone.
This patch adds that support to the NFS server by rolling
back the state of the NFS request arguments and NFS
reply arguments mbuf lists to the condition they were
in before the operation and then redoing the operation.
Tested by: pho
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D27875
scrmap is only used in the one compilation unit in all cases, make it static
rather than extern'ing it. There's little benefit, but it's easy to do.
It's unclear how this hasn't failed many builds before now, since it should
have cropped up sometime around deeper hierarchies getting a default WARNS.
MFC after: 3 days
If the kernel was built without INET6, default to ICMP. Or, if it was
built without INET, default to ICMPv6.
PR: 251725
Reported by: jbeich
Reviewed by: jbeich
Tested by: jbeich
MFC with: 368045
This updates the FUSE protocol to 7.28, though most of the new features
are optional and are not yet implemented.
MFC after: 2 weeks
Relnotes: yes
Reviewed by: cem
Differential Revision: https://reviews.freebsd.org/D27818
An order-of-operations problem caused an expectation intended for
FUSE_READ to instead match FUSE_ACCESS. Surprisingly, only one test
case was affected.
MFC after: 2 weeks
Reviewed by: cem
Differential Revision: https://reviews.freebsd.org/D27818
[PowerPC] Do not emit HW loop when TLS var accessed in PHI of loop
exit
If any PHI nodes in loop exit blocks have incoming values from the
loop that are accesses of TLS variables with local dynamic or general
dynamic TLS model, the address will be computed inside the loop.
Since this includes a call to __tls_get_addr, this will in turn cause
the CTR loops verifier to complain. Disable CTR loops in such cases.
Fixes: https://bugs.llvm.org/show_bug.cgi?id=48527
This should fix building ceph 12.2.12 on powerpc64, powerpc, powerpcspe
and powerpc64le.
Requested by: pkubaj
MFC after: 3 days
Previously having ficl/liblua in LIB32LIST with their respective option
turned OFF would be relatively harmless, as we wouldn't act on it unless we
were building the non-32 variant. As of ac5f382a9d, however, these are
now used for dependencies in some cases and must reflect what's actually
going to be built.
The change to kern_jail_set that was supposed to "also properly clean
up when attachment fails" didn't fix a memory leak but actually caused
a double free. Back that part out, and leave the part that manages
allprison_lock state.
Support for fractional seconds has become much more widespread since
this text was originally written.
Reported by: Mark Eichin
Reviewed by: gbe, jilles
Differential Revision: https://reviews.freebsd.org/D26208
CouchDB was mistakenly removed in r368712
amqps is used by net/rabbitmp
Both are registered in IANA
Reported by: dch
Differential Revision: https://reviews.freebsd.org/D27691
The "findstack", "show all trace", and "show active trace" commands
were iterating over allproc to enumerate threads. This missed threads
executing in exit1() after being removed from allproc.
Reviewed by: kib
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D27829
Not all debugger operations that enumerate threads require thread
stacks to be resident in memory to be useful. Instead, push P_INMEM
checks (if needed) into callers.
Reviewed by: kib
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D27827
Processes part way through exit1() are not included in allproc. Using
allproc to enumerate processes prevented getting the stack trace of a
thread in this part of exit1() via ddb.
Reviewed by: kib
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D27826
This is used by kernel debuggers to enumerate processes via the pid
hash table.
Reviewed by: kib
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D27825
Exiting processes that have been removed from allproc but are still
executing are not yet marked PRS_ZOMBIE, so they were not listed (for
example, if a thread panics during exit1()). To detect these
processes, clear p_list.le_prev to NULL explicitly after removing a
process from the allproc list and check for this sentinel rather than
PRS_ZOMBIE when walking the pidhash.
While here, simplify the pidhash walk to use a single outer loop.
Reviewed by: kib
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D27824
Keep explicit track of the allprison_lock state during the final part
of kern_jail_set, instead of deducing it from the JAIL_ATTACH flag.
Also properly clean up when the attachment fails, fixing a long-
standing (though minor) memory leak.
Use atomic testandset and testandclear to catch concurrent double free,
and to reduce the number of atomic operations.
Submitted by: jeff
Reviewed by: cem, kib, markj (all previous version)
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22703
That is, provide wrappers around the atomic_testandclear and
atomic_testandset primitives.
Submitted by: jeff
Reviewed by: cem, kib, markj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22702
After the removal of obsolete GDB 6.1.1 from the base system in
1c0ea326aa we no longer need to downgrade to DWARF2 debug info.
We will need to ensure that our tools (e.g. ctfconvert) handle DWARF5
prior to it becoming the default in the Clang and GCC versions we use.
Reported by: jhb
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
The cpuset(2) tests should be run as root (require.user properly set) with
>= 3 cpus for maximum coverage. All tests that want to modify the cpuset
don't assume any particular cpu layout (i.e. the first cpu may not be 0, the
last may not be first + count) and the following scenarios are tested:
1.) newset: basic execute cpuset() to grab a new cpuset, make sure the
assigned cpuset then has a different ID.
2.) transient: create a new cpuset then assign the process its original
cpuset, ensuring that the one we created is now gone.
3.) deadlk: test assigning an anonymous mask, then resetting the process
base affinity with 1-cpu overlap w.r.t. the anonymous mask and with
0-cpu overlap w.r.t. the anonymous mask.
4.) jail_attach_newbase: process attaches to a jail with its own
cpuset+mask (e.g. cpuset -c -l 1,2 jail -c path=/ command=/bin/sh)
5.) jail_attach_newbase_plain: process attaches to a jail with its own
cpuset (e.g. cpuset -c jail -c path=/ command=/bin/sh)
6.) jail_attach_prevbase: process attaches to a jail with the containing
jail's root cpuset (e.g. jail -c path=/ command=/bin/sh)
7.) jail_attach_plain: process attaches to a jail with the containing jail's
root cpuset+mask.
8.) badparent: creates a new cpuset and modifies the anonymous thread mask,
then setid's back to the original and checks that cpuset_getid() returns
the expected set.
Differential Revision: https://reviews.freebsd.org/D27307
Add shims to map NetBSD's API to CPUSET(9). Obviously the invalid input
parts of these tests are relatively useless since we're just testing the
shims that aren't used elsewhere, there's still some amount of value in
the parts testing valid inputs.
Differential Revision: https://reviews.freebsd.org/D27307
buildworld already runs the stand build in parallel[1], so make it easier to
identify ordering issues by properly establishing dependencies or adding
.WAIT where needed.
Everything in stand/ relies on libsa, either directly or indirectly, because
libsa build is where the stand headers get installed and it gets linked in
most places.
Interpreters depend on their libs, machine dirs usually depend on top-level
libs that are getting built and at least one of the interpreter flavors.
For i386, order btx/libi386/libfirewire before everything else using a
big-ol-.WAIT hammer. btx is the most common dependency, but the others are
used sporadically. This seems to be where the race reporting on the mailing
list is- AFAICT, the following sequence is happening:
1.) One of the loaders gets built based on stale btx/btxldr
2.) btx/btxldr gets rebuilt
3.) installworld triggers loader rebuild because btx was rebuilt after
This seems like the most plausible explanation, as they've verified system
time and timestamps.
While we're here, let's switch stand/ over to a completely parallel build so
we can work out these kinds of issues in isolation rather than in the middle
of a larger build.
Reviewed by: bdragon, sjg, tsoome
Tested by: bdragon (-j1024, no failures, significant speed improvement)
Differential Revision: https://reviews.freebsd.org/D23411
An 8MB max stack size is quite limiting in today's world, and in-fact is
the *default* stack size for almost every other arch (including mips).
Raise the default to 4MB (should be pretty reasonable) and the max to 64MB.
NetBSD made a similar move back in 2015 and raised MAXDSIZ to 1856 at the
same time, so let's just roll that in as well. They later lowered it, but
eventually raised it back to 1856 in order to build rust.
This was noticed while looking at qemu-bsd-user's default stack sizes and
growth behavior (or lack thereof).
Reviewed by: ian
Differential Revision: https://reviews.freebsd.org/D27218
When a break-to-debugger is triggered, kdb will grab the console and vt(4)
will generally switch back to ttyv0. If one issues a continue from the
debugger, then kdb will ungrab the console and the system rolls on.
This change adds a perhaps minor feature: when we're down to grab == 0 and
if vt actually switched away to ttyv0, switch back to the tty it was
previously on before the console was grabbed.
The justification behind this is that a typical flow is to work in
!ttyv0 to avoid console spam while occasionally dropping to ddb to inspect
system state before returning. This could easily enough be tossed behind
a sysctl or something if it's not generally appreciated, but I anticipate
indifference.
Reviewed by: ray
Differential Revision: https://reviews.freebsd.org/D27110
vt_allocate_keyboard only needs to unwind the effects of keyboard-grabbing,
rather than any associated vt window action that may have also happened.
Split out the bits that do the keyboard work into *_noswitch equivalents,
and use those in keyboard allocation. This will be less error-prone when a
later change will offer up different window state behavior when the console
is ungrabbed.
Reviewed by: ray
Differential Revision: https://reviews.freebsd.org/D27110
loader_conf_dirs is the supporting mechanism for the included
/boot/loader.conf.d directory. When lualoader finishes processing all of
the loader_conf_files it finds after walking /boot/defaults/loader.conf,
it will now check any and all loader_conf_dirs and process files ending
in ".conf" as if they were a loader.conf.
Note that loader_conf_files may be specified in a loader.conf.d config
file, but loader_conf_dirs may *not*. It will only be processed as specified
in /boot/defaults/loader.conf and any loader_conf_files that were loaded
from there.
Reviewed by: allanjude, freqlabs, rpokala, tsoome
Includes suggestion from: imp
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D25608
FUSE_LSEEK reports holes on fuse file systems, and is used for example
by bsdtar.
MFC after: 2 weeks
Relnotes: yes
Reviewed by: cem
Differential Revision: https://reviews.freebsd.org/D27804
