Commit Graph

226437 Commits

Author SHA1 Message Date
Stephen Hurd
1c0054d261 Fix "taskqgroup_attach: setaffinity failed: 3" with iflib drivers
Improved logging added in r323879 exposed an error during
attach. We need the irq, not the rid to work correctly. em uses
shared irqs, so it will use the same irq for TX as RX. bnxt does
not use shared irqs, or TX irqs at all, so there's no need to set
the TX irq affinity.

Reviewed by:	sbruno
Approved by:	sbruno (mentor)
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D12496
2017-10-05 14:43:30 +00:00
Michael Tuexen
ff76c8c9fd Ensure that the accept ABORT chunks with the T-bit set only the
a non-zero matching peer tag is provided.

MFC after:	1 week
2017-10-05 13:29:54 +00:00
Sepherosa Ziehau
b7d499f4d4 hyperv/hn: Fix options RSS building
Reported by:	np
MFC after:	1 week
Sponsored by:	Microsoft
2017-10-05 13:22:14 +00:00
Konstantin Belousov
a6d4b1dc48 Ensure that after sucessfull i386_set_ldt() call, other threads can
use LDT segments immediately.

If the i386_set_ldt() call created a first LDT descriptor (and
consequently created the LDT) for our address space, LDTR is currently
loaded only on the CPU executing the syscall.  Other CPUs executing
threads sharing the address space, would only load LDTR after context
switch.

Uncomment set_user_ldt_rv() and call it on all CPUs.  Remove critical
section inside set_user_ldt(), it is not needed in the context of call
from smp_rendezvous().

Set md_ldt after md_ldt_sd is initialized using the same code sequence
as in user_ldt_free().  Do the whole initialization in a critical
section, to not race with the context switching while we set LDT.

Discussed with:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-10-05 13:12:59 +00:00
Mateusz Guzik
20a15d1752 locks: partially tidy up waiting on readers
spin first instant of instantly re-readoing and don't re-read after
spinning is finished - the state is already known.

Note the code is subject to significant changes later.

MFC after:	1 week
2017-10-05 13:01:18 +00:00
Konstantin Belousov
78d58cb6bc Avoid a race betweem freeing LDT and context switches.
cpu_switch.S uses curproc->p_md.md_ldt value as the flag indicating
presence of the process LDT.  The flag is checked and then ldt segment
descriptor is copied into the CPU' GDT slot.

Disallow context switches around clearing of the curproc LDT state by
performing the cleanup in critical section.  Ensure that the md_ldt
flag is cleared before md_ldt_sd descriptor content is destroyed by
inserting fence between the operations.

We depend on the x86 memory model strong ordering guarantees, in
particular, that cpu_switch.S observes the writes to md_ldt and
md_ldt_sd in the expected order.

Discussed with:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-10-05 12:50:03 +00:00
Andriy Gapon
31f976bc4a fix the misleading log facility used in devd/zfs.conf
In general, the "kern" facility is reserved for the kernel use only.
If a program specifies that facility, then it is silently converted
to "user" facility.
So, using logger -p kern.xxx was both misleading and non-specific.

Thus, change the facility to local7, so that users can create
more adequate syslogd configurations.

While local0..local7 are documented as being for local use we already
have several examples in the tree where they are used because none of
the named facilities really fits.

Approved by:	asomers
MFC after:	2 weeks
Differential Revision: https://reviews.freebsd.org/D12420
2017-10-05 12:38:26 +00:00
Andriy Gapon
693593b6f0 sysctl-s in a module should be accessible only when the module is initialized
A sysctl can have a custom handler that may access data that is initialized
via SYSINIT(9) or via a module event handler (also invoked via SYSINIT).
Thus, it is not safe to allow access to the module's sysctl-s until
the initialization is performed.  Likewise, we should not allow access
to teh sysctl-s after the module is uninitialized.
The latter is easy to achieve by properly ordering linker_file_unregister_sysctls
and linker_file_sysuninit.
The former is not as easy for two reasons:
- the initialization may depend on tunables which get set when sysctl-s are
  registered, so we need to set the tunables before running sysinit-s
- the initialization may try to dynamically add more sysctl-s under statically
  defined sysctl nodes
So, this change splits the sysctl setup into two phases.  In the first phase
the sysctl-s are registered as before but they are disabled and hidden from
consumers.  In the second phase, done after sysinit-s, normal access to the
sysctl-s is enabled.

The change should affect only dynamic module loading and unloading after
the system boot-up.  Nothing changes for sysctl-s compiled into the kernel
and sysctl-s in preloaded modules.

Discussed with:	hselasky, ian, jhb
Reviewed by:	julian, kib
MFC after:	2 weeks
Sponsored by:	Panzura
Differential Revision: https://reviews.freebsd.org/D12545
2017-10-05 12:32:14 +00:00
Konstantin Belousov
287c718f32 Improve amd64_get_ldt().
Provide consistent snapshot of the requested descriptors by preventing
other threads from modifying LDT while we fetch the data, lock dt_lock
around the read.  Copy the data into intermediate buffer, which is
copied out after the lock is dropped.

Use guaranteed atomic (aligned volatile) reads of the descriptors to
use same-size atomic as CPU update to set A bit in the descriptor type
field.

Improve overflow checking for the descriptors range calculations and
remove unneeded casts.

Reviewed by:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-10-05 12:29:34 +00:00
Andriy Gapon
a4bc304da5 remove heuristic error detection from ddi_strto*()
Zero, <TYPE>_MIN and <TYPE>_MAX values can result from valid conversions.
They don't necessarily imply any error.
Since we do not have any reliable error signaling from libkern's strto*(),
it's better to always assume success rather than to report an error when
there is none.

Reviewed by:	tsoome
MFC after:	2 weeks
Differential Revision: https://reviews.freebsd.org/D12565
2017-10-05 12:25:18 +00:00
Konstantin Belousov
8fc26d9612 Minor style fix.
Requested by:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-10-05 12:19:55 +00:00
Konstantin Belousov
a58679a93b Complete r323772 on amd64.
Compilers are allowed to combine plain reads into group operations,
e.g. 64bit element copies of one array into another can be
legitimately optimized back to a memcpy() call, which r323772 tried to
prevent.

Qualify accesses to LDT descriptors with volatile dereference to
ensure that each write indeed occurs.  After that, our usual claim of
native-size aligned writes being atomic applies.

This is equivalent to atomic_store(memory_order_relaxed) C11 accesses,
but our machine/atomic.h does not provide corresponding primitive.

Noted and reviewed by:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-10-05 12:16:45 +00:00
Konstantin Belousov
98af67c78e Use ANSI C declaration for amd64_get_ldt().
Reviewed by:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-10-05 12:07:38 +00:00
Konstantin Belousov
83d55c8ac2 Correct format specifiers in the debug code.
Requested by:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-10-05 12:01:39 +00:00
Konstantin Belousov
687a5be47a Remove useless comments.
Requested by:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-10-05 11:56:04 +00:00
Konstantin Belousov
a1fc6a8c49 On amd64, mark the set_user_ldt() function as static.
On i386, the function is used from the context switch code and needs
to be accessible externally.  Amd64 MD context switch does not lock an
LDT spinlock and inlines switching in assembly.

Discussed with:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-10-05 11:50:01 +00:00
Konstantin Belousov
37afe7dfd2 Reduce default max_ldt_segment value to 512.
This makes the LDT to use only one page with default settings,
avoiding the need to find contigous 2 pages in KVA.  It seems that
most users are fine even with 512 segments.

Discussed with:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-10-05 11:36:55 +00:00
Konstantin Belousov
843d5752f5 Update comment to note that we skip LDT reload for kthreads as well.
Noted by:	bde
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2017-10-05 11:34:51 +00:00
Navdeep Parhar
08cd1f11bd cxgbe(4): Provide knobs to set the holdoff parameters of TOE rx queues
separately from NIC rx queues instead of using the same parameters for
both types of queues.

MFC after:	2 weeks
Sponsored by:	Chelsio Communications
2017-10-05 07:18:16 +00:00
Andriy Gapon
fed20fc736 really unbreak kernel builds on sparc64 and powerpc64 after r324163, ZFS Channel Programs
This commit also reverts r324178 that did not fix the problem on powerpc64
where char is usigned.

MFC after:	4 weeks
X-MFC with:	r324163
2017-10-05 06:39:57 +00:00
Conrad Meyer
1d3aa3624d hwpmc(4): Add support for extended AMD events
Sponsored by:	Dell EMC Isilon
2017-10-04 23:35:10 +00:00
David C Somayajulu
99a0a983da Add sanity checks in ql_hw_send() qla_send() to ensure that empty slots
in Tx Ring map to empty slot in Tx_buf array before Transmits. If the
checks fail further Transmission on that Tx Ring is prevented.
2017-10-04 23:03:09 +00:00
Rick Macklem
64059dce60 Add a few definitions for the Flex File Layout.
This patch adds a few definitions for the Flex File Layout.
Until a future commit adds Flex File layout support, these new fields
are not used.
This patch should not affect the "pnfs" option for File Layout.
2017-10-04 22:55:30 +00:00
Conrad Meyer
a480149062 aesni(4): CRYPTO_AES_NIST_GCM_16 mandates MAC
Remove some dead conditionals and add an assertion around behavior already
present in aesni_process().

Silence a few Coverity false positives.

CIDs:		1381571, 1381557
Sponsored by:	Dell EMC Isilon
2017-10-04 21:15:45 +00:00
Mariusz Zaborski
b01988a5f5 Partially revert r323866.
Using HAVE_* is a internal tcpdump style standard.
We want to be consistent with the standard to upstream those changes in
the future.

Requested by: glebius@
2017-10-04 21:05:44 +00:00
Kyle Evans
7b9f317cf3 hexdump: Remove expected test failures for now succeeding tests
r323990 fixed the -s flag breakage reported by PR 219173. Mark the
corresponding hexdump tests accordingly, since they should now both succeed.

PR:		222781
Reported by:	ngie
Reviewed by:	emaste, ngie
Approved by:	emaste (mentor)
Differential Revision:	https://reviews.freebsd.org/D12590
2017-10-04 18:11:00 +00:00
Mark Johnston
bf4e2e5be1 Add get_random_{int,long} to the LinuxKPI.
Fix some whitespace bugs while here.

Reviewed by:	hselasky
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D12588
2017-10-04 17:29:08 +00:00
Alan Somers
27f0f2ec5f Display rotation rate and TRIM/UNMAP support in diskinfo(8)
Bump __FreeBSD_version due to the expansion of struct diocgattr_arg.

Reviewed by:	mav, allanjude, imp
MFC after:	3 weeks
Relnotes:	yes
Sponsored by:	Spectra Logic Corp
Differential Revision:	https://reviews.freebsd.org/D12578
2017-10-04 15:09:49 +00:00
Warner Losh
6043585892 'private' isn't a PNP string field, so instead used the reserved '#'
name for this field (it might even be possible to just drop it
entirely, since it will be ignored either way).

Sponsored by: Netflix
2017-10-04 14:41:45 +00:00
Ed Maste
49ccd3fe61 arch.7: correct statement about time_t size
After r320347 it is 64-bit on every architecture except i386.

Sponsored by:	The FreeBSD Foundation
2017-10-04 14:39:55 +00:00
Hans Petter Selasky
87a567f181 Make sure the timer belonging to the delayed work in the LinuxKPI
gets drained before invoking the work function. Else the timer
mutex may still be in use which can lead to use-after-free situations,
because the work function might free the work structure before returning.

MFC after:	1 week
Sponsored by:	Mellanox Technologies
2017-10-04 13:13:38 +00:00
Benjamin Kaduk
75ea0b7697 mdoc style: start new sentence on new line 2017-10-04 12:58:30 +00:00
Edward Tomasz Napierala
b73e1f746a Don't destroy gmountver(8) devices on shutdown, unless they are orphaned.
Otherwise we would fail to sync the filesystem on reboot.

MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-10-04 12:25:39 +00:00
Edward Tomasz Napierala
253f5a2edb Make md(4) support GEOM::ident for vnode-backed disks. It's based
on backing file device and inode numbers.

This is useful for gmountver(8) regression tests.

MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D12230
2017-10-04 12:23:34 +00:00
Edward Tomasz Napierala
5b4bc31eee Fix iSCSI target panics on concurrent session teardown and display
(eg removing a target and doing "ctladm islist -v" at the same time).

Reviewed by:	manu
Tested by:	manu
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-10-04 11:35:04 +00:00
Cy Schubert
9eba44bf46 Fix typo.
Reported by:	se
2017-10-04 09:54:59 +00:00
Cy Schubert
82ef8ce5a6 Fix typo. 2017-10-04 09:54:55 +00:00
Emmanuel Vadot
1da3e8b097 mountd: Convert mountlist to SLIST
Use SLIST from sys/queue.h instead of homebrew linked list for mountlist.

Reviewed by:	bapt, rmacklem
MFC after:	1 week
Sponsored by:	Gandi.net
Differential Revision:	https://reviews.freebsd.org/D12504
2017-10-04 08:48:05 +00:00
Emmanuel Vadot
c9ac0f714c mountd: Convert exportlist to SLIST
Use SLIST from sys/queue.h instead of homebrew linked list for the exportlist.

Reviewed by:	bapt, rmacklem
MFC after:	1 week
Sponsored by:	Gandi.net
Differential Revision:	https://reviews.freebsd.org/D12502
2017-10-04 08:43:56 +00:00
Cy Schubert
b1b1386ff4 Clarify the wording describing the stayopen flag.
MFC after:	1 week
2017-10-04 06:06:22 +00:00
Cy Schubert
0c059da3e1 When building multiple kernels using KERNCONF, non-existent KERNCONF
files will produce an error and buildkernel will fail. Previously missing
KERNCONF files silently failed giving no indication as to why, only to
subsequently discover during installkernel that the desired kernel was
never built in the first place.

This is a rework of r302865.

This is the correct patch.

Reviewed by:	ngie (previous version, r302865)
MFC after:	2 months
Differential Revision:	D7167
2017-10-04 03:39:54 +00:00
Cy Schubert
84f54c4fd7 Revert r324246. This is not exactly what was intended. 2017-10-04 03:35:23 +00:00
Cy Schubert
74e0e295e4 When building multiple kernels using KERNCONF, non-existent KERNCONF
files will produce an error and buildkernel will fail. Previously missing
KERNCONF files silently failed giving no indication as to why, only to
subsequently discover during installkernel that the desired kernel was
never built in the first place.

This is a rework of r302865.

Reviewed by:	ngie (previous version, r302865)
MFC after:	2 months
Differential Revision:	D7167
2017-10-04 03:24:16 +00:00
Conrad Meyer
3cd1f90972 chpass(1): Check crypt(3) return and handle error appropriately
This change is spiritually similar to the earlier r231994.

PR:		222756
Submitted by:	Lubos Boucek <bouceklubos AT gmail.com>
Obtained from:	DragonflyBSD 2020c8fec4168a5020f984a093224fade3074b25
2017-10-04 01:12:26 +00:00
Brooks Davis
5e12225140 Remove an unneeded and incorrect memset().
On Variant I TLS architectures (aarch64, arm, mips, powerpc, and riscv)
the __libc_allocate_tls function allocates thread local storage memory
with calloc(). It then copies initialization data over the portions with
non-zero initial values. Before this change it would then pointlessly
zero the already zeroed remainder of the storage. Unfortunately the
calculation was wrong and it would zero TLS_TCB_SIZE (2*sizeof(void *))
additional bytes.

In practice, this overflow only matters if the TLS segment is sized such
that calloc() allocates a less than TLS_TCB_SIZE extra memory. Even
then, the likely result will be zeroing part of the next bucket. This
coupled with the impact being confined to Tier II platforms means there
will be no security advisory for this issue.

Reviewed by:	kib, dfr
Discussed with:	security-officer (delphij)
MFC after:	1 week
Found by:	CHERI
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D12547
2017-10-03 22:57:19 +00:00
Alan Somers
780dc32b31 Fix copy/paste error in diskinfo.8 from r320555
MFC after:	1 week
Sponsored by:	Spectra Logic Corp
2017-10-03 17:00:01 +00:00
Maxim Konovalov
5a64575e73 o FreeBSD 10.4 happened after 11.1, adjust the branches accordingly.
o The current FreeBSD branch is 12 not 13.

Suggested by:	lidl
2017-10-03 14:23:49 +00:00
Maxim Konovalov
fff2980dad FreeBSD 10.4 release added. 2017-10-03 13:31:22 +00:00
Edward Tomasz Napierala
3cfa7c6e48 Make procstat(1) recognize process descriptors, so that it shows
"P" instead of "?" in "procstat -af" output. Note that there are
still a few more DTYPE_* kinds we don't decode yet.

Reported by:	rwatson
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D12426
2017-10-03 11:45:24 +00:00
Ruslan Ermilov
a470b2750f Fixed description of msg_name/msg_namelen in recvmsg(). 2017-10-03 11:13:25 +00:00