Commit Graph

214164 Commits

Author SHA1 Message Date
John Baldwin
fc4f075a1a Add PTRACE_VFORK to trace vfork events.
First, PL_FLAG_FORKED events now also set a PL_FLAG_VFORKED flag when
the new child was created via vfork() rather than fork().  Second, a
new PL_FLAG_VFORK_DONE event can now be enabled via the PTRACE_VFORK
event mask.  This new stop is reported after the vfork parent resumes
due to the child calling exit or exec.  Debuggers can use this stop to
reinsert breakpoints in the vfork parent process before it resumes.

Reviewed by:	kib
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D7045
2016-07-18 14:53:55 +00:00
Alexander Motin
d0cefbdc0d Update if_hwassist when interface options are changed.
In particular for me this fixes checksum problem when if_bridge attached
to the interface requests TXCSUM to be disabled, but effectively ignored.

MFC after:	3 days
Sponsored by:	iXsystems, Inc.
2016-07-18 14:40:13 +00:00
Konstantin Belousov
77d6809483 The assertion re-added in r302614 was triggered when stopping signal
is delivered to vforked child.  Issue is that we avoid stopping such
children in issignal() to not block parents.  But executed AST, which
ignored stops, leaves the child with the signal pending but no AST
pending.

On first exec after vfork(), call signotify() to handle pending
reenabled signals.  Adjust the assert to not check vfork children
until exec.

Reported and tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2016-07-18 10:53:47 +00:00
Gleb Smirnoff
809a9d1353 Revert the last commit. It must get more review and testing first. 2016-07-18 09:29:08 +00:00
Gleb Smirnoff
ef58c6a7a3 Redo the r302894: the very new value for a non-scheduled callout is -1.
This was recently added in r290664.

Noticed by:	hselasky
PR:		210884
2016-07-18 09:26:06 +00:00
Luiz Otavio O Souza
59b67ee8f0 Fix a random memory overwrite at boot time, simplebus_init() and
simplebus_add_device() expect a simplebus_softc structure associated with
the device.

Add the simplebus_softc as first member in am335x_pwmss_softc structure.

Sponsored by:	Rubicon Communications (Netgate)
2016-07-18 06:35:40 +00:00
Sepherosa Ziehau
367d703632 hyperv/vmbus: Cosmetic vmbus channel open cleanup
MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D7217
2016-07-18 05:36:31 +00:00
Maxim Sobolev
55f9588af4 Relax checking if the privider size matches size recorded in the
superblock, allowing provider to be bit bigger, i.e. have some
extra padding after the FS image. That in some cases might be
a side-effect of using CLOOP format which enforces certain block
size and trying to compress image that is not exactly the number
of those blocks in size. The UFS itself does not have any issues
mounting such padded file systems, so it's what GEOM_LABEL should
do.

Submitted by:	@mizhka_gmail.com
Differential Revision:	https://reviews.freebsd.org/D6208
2016-07-18 05:00:01 +00:00
Konstantin Belousov
56d48d6dcb Fix another bug after r302350.
Reported and tested by:	pho
PR:	210884
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2016-07-18 04:30:34 +00:00
Alan Cox
0c3a489325 Break up vm_fault()'s implementation of the read-ahead and delete-behind
optimizations into two distinct pieces.  The first piece consists of the
code that should only be performed once per page fault and requires the map
to be locked.  The second piece consists of the code that should be
performed each time a pager is called on an object in the shadow chain.
(This second piece expects the map to be unlocked.)

Previously, the entire implementation could be executed multiple times.
Moreover, the second and subsequent executions would occur with the map
unlocked.  Usually, the ensuing unsynchronized accesses to the map were
harmless because the map was not changing.  Nonetheless, it was possible for
a use-after-free error to occur, where vm_fault() wrote to a freed map
entry.  This change corrects that problem.

Reported by:	avg
Reviewed by:	kib
MFC after:	3 days
Sponsored by:	EMC / Isilon Storage Division
2016-07-18 04:20:26 +00:00
Maxim Sobolev
e0cd4b7f6f Don't print same value twice, one in decimal once in hex. This makes
output more cryptic than it needs to be and wastes cpu cycles and
console bandwidth.
2016-07-18 03:59:03 +00:00
Will Andrews
462819bb16 Add my beinstall script.
This is meant to install a new BE (boot environment) given a fully built
world/kernel.  In addition to installing world and kernel in the new BE,
it also automatically performs /etc updates (using etcupdate or mergemaster)
and package updates (using pkg).

Because this process is performed in a new BE, it reduces the need for a
second reboot.  It also means a reboot into a partially updated system (due
to install or hardware failure) can't happen.

Inspired by and similar in function to Solaris/illumos-style upgrades.
2016-07-18 02:13:57 +00:00
Will Andrews
ffdeef3234 libkvm: Improve physical address lookup scaling.
Instead of using a hash table to convert physical page addresses to offsets
in the sparse page array, cache the number of bits set for each 4MB chunk of
physical pages.  Upon lookup, find the nearest cached population count, then
add/subtract the number of bits from that point to the page's PTE bit.
Then multiply by page size and add to the sparse page map's base offset.

This replaces O(n) worst-case lookup with O(1) (plus a small number of bits
to scan in the bitmap).  Also, for a 128GB system, a typical kernel core of
about 8GB will now only require ~4.5MB of RAM for this approach instead of
~48MB as with the hash table.

More concretely, /usr/sbin/crashinfo against the same core improves from a
max RSS of 188MB and wall time of 43.72s (33.25 user 2.94 sys) to 135MB and
9.43s (2.58 user 1.47 sys).  Running "thread apply all bt" in kgdb has a
similar RSS improvement, and wall time drops from 4.44s to 1.93s.

Reviewed by:	jhb
Sponsored by:	Backtrace I/O
2016-07-18 01:55:25 +00:00
Will Andrews
8fb15a24ce libkvm: Bounds check (more) PTE indices. 2016-07-18 01:03:39 +00:00
Will Andrews
197eca22ed libkvm: Put private kvm routines in kvm_private.c. 2016-07-18 01:02:52 +00:00
Pedro F. Giffuni
4386fba70c sed(1): Fix off by one introduced in r299211.
Detected by running the gsed tests.

Submitted by:	Mikhail Teterin
PR:		195929
MFC after:	3 days
2016-07-17 21:49:53 +00:00
Peter Grehan
d73abd4b09 Disallow interrupt requests on disabled endpoints.
Submitted by:	Leon Dang
MFC after:	3 days
2016-07-17 20:34:46 +00:00
Justin Hibbits
78cc33fd32 Remove booke_enable_l3_cache declaration and remaining definition.
L3 cache is not defined by Book-E, so is platform specific.  Since it was
already moved for e500-based devices into mpc85xx in r292903, just eliminate it
altogether.  Any device that supports L3 cache should have its own platform
means to enable it.
2016-07-17 19:24:28 +00:00
Justin Hibbits
b926a14ca7 No need to include mpc85xx.h anymore, so remove it. 2016-07-17 19:19:50 +00:00
Mariusz Zaborski
1b55032939 Fix nvlist array memory leak.
When we change nvl_array_next to NULL it means that we want to destroy or
take nvlist_array. The nvpair, which stores next nvlist of nvlist_array element
is no longer needed and can be freed.

Submitted by:	Adam Starak <starak.adam@gmail.com>
MFC after:	1 week
2016-07-17 15:36:02 +00:00
Mariusz Zaborski
26dc4fcaa7 Fix memory leak in the nvlist string array.
Submitted by:	Adam Starak <starak.adam@gmail.com>
MFC after:	1 week
2016-07-17 15:29:31 +00:00
Michal Meloun
79cceaac0f TEGRA: Subclass Tegra PCIE driver from ofw_pci base driver.
Remove now redundant code.
2016-07-17 14:45:15 +00:00
Alexander Motin
db8e94bb3b Restore PIM_ATA_EXT flag handling, lost at r300207.
This re-enables NCQ TRIM usage on capable hardware (bhyve).
2016-07-17 14:17:58 +00:00
Alexander Motin
6d6fccace2 Fix NCQ TRIM emulation.
When this code was written, there was no guests using it to test.
2016-07-17 14:13:47 +00:00
Michal Meloun
efafbd0a87 OFWPCI: Add support for NEW_PCIB.
MFC after: 3 weeks
2016-07-17 13:43:46 +00:00
Michal Meloun
5572376db2 OFWPCI: Improve resource handling.
- add new rman for prefetchable memory. Is used only if given 'ranges'
  property contains prefetchable memory range.

- not all ranges in 'ranges' property are subject for rman's filling.
  Tegra for example, have two addition records which are used for
  'pci 'register' -> 'assigned-address' -> 'ranges' machinery.
  Add sc_ranges_mask for masking not rman related ranges.

- consistently pass unknown (not managed at this level) resources
  allocation/release/adjust requests to parent.

MFC after: 3 weeks
2016-07-17 13:43:00 +00:00
Michael Tuexen
487e2e6507 Add a constant required by RFC 7496.
MFC after:	3 days
2016-07-17 13:33:35 +00:00
Michael Tuexen
8e1b295f09 Fix the PR-SCTP behaviour.
This is done by rrs@.

MFC after:	3 days
2016-07-17 13:14:51 +00:00
Andrey A. Chernov
1cecacfe73 Reflect pathnames sorting in collation order. 2016-07-17 13:10:57 +00:00
Alexander Motin
e50f405eca In AHCI_IRQ_MODE_AFTER mode do not clear interrupts below.
This is probably a NOP change since IS register is not activery used for
interrupts below the shared, but it looked odd to clear interrupts we did
not handle.
2016-07-17 12:45:58 +00:00
Alexander Motin
eaf4f6fe69 Do not consider the last interrupt shared if there are enough interrupts
for all channels.
2016-07-17 12:31:31 +00:00
Michael Tuexen
9bf9ce8144 Don't duplicate code for SCTP, just use the ones used for UDP and TCP.
This fixes a bug with link local addresses. This will require and
upcoming change in the kernel to bring SCTP to the same behaviour
as UDP and TCP.

MFC after:	3 days
2016-07-17 11:43:27 +00:00
Andrey A. Chernov
7e9488dda3 In g_Ctoc() apply CHAR() macro to *str to strip all flags. It gains nothing
right now, but some architectures theoretically may 64-bit wchar_t and the
code looks more correct.
2016-07-17 11:25:24 +00:00
Andrey A. Chernov
aa3d69a636 1) This file full of direct char <-> wchar_t assignment, not converted, cut
them down. This hack still remains:
 * 2. Illegal byte sequences in filenames are handled by treating them as
 *    single-byte characters with a values of such bytes of the sequence
 *    cast to wchar_t.

2) Reword the comment in the hack above to reflect implementation.

3) Protect signed wchar_t from sign extension when a signed char is assigned
to it in the hack above.

3) Corresponding backward hack in g_Ctoc() was not implemented, so all
pathes with illegal byte sequences are skipped as result, implement it now.

4) globtilde() forget to convert expanded user home dir from multibyte to
wchar.

5) Protect globtilde() from long expansion truncation.

6) Results was not sorted according to collate as POSIX requires.
2016-07-17 09:39:59 +00:00
Michael Tuexen
26f0250adf Add missing sctps_reasmusrmsgs counter.
Joint work with rrs@.
MFC after:	3 days
2016-07-17 08:31:21 +00:00
Allan Jude
1b63cafb63 A failed installation once restarted will often error out
If an encrypted install is attempted and fails for any reason, the disk
cannot be erased by the installer because the partition is in use by GELI

At the start of the installation process, all ZFS pools are exported and
all GELI instances are detached, to allow a restarted install to proceed

PR:		210814
Reported by:	jonathan
MFC after:	10 days
2016-07-16 19:35:04 +00:00
Allan Jude
4487af02ff Fix encrypted MBR install
The pools are exported and reimported in order to write the bootcode
This causes an error when the bootpool is later mounted by common code
The bootpool is now imported with the -N flag to prevent mounting

Reported by:	Michael Dexter
MFC after:	5 days
2016-07-16 18:28:44 +00:00
Jared McNeill
01a469b860 Add support for Allwinner H3 EMAC.
H3 EMAC is the same as A83T/A64 except the SoC includes an (optional)
internal 10/100 PHY. Both internal and external PHYs are supported on H3
with this driver.
2016-07-16 18:06:41 +00:00
Andrey A. Chernov
143d321a30 Path generation was not according to collate
Approved by:    jilles
2016-07-16 13:26:18 +00:00
Konstantin Belousov
86f1146329 Another issue reported on http://seclists.org/oss-sec/2016/q3/68 is
that struct kevent member ident has uintptr_t type, which is silently
truncated to int in the call to fget().  Explicitely check for the
valid range.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-07-16 13:24:58 +00:00
Michael Tuexen
643fd575da Deal with a portential memory allocation failure, which was reported
by the clang static code analyzer.
Joint work with rrs@.

MFC after:	3 days
2016-07-16 12:25:37 +00:00
Alexander Motin
9c4dd8bdf0 Revert unwanted change leaked into r302932. 2016-07-16 09:44:31 +00:00
Alexander Motin
ee7230f4f7 Increase I82545_MAX_TXSEGS from 20 to 64 and add checks for it.
There seems no hard limit on number of segments per packet in the chip,
and 20 appeared insufficient.  Hope 64 will be enough, but if not -- add
check to report that and drop the packet instead of corrupting stack.
2016-07-16 09:08:33 +00:00
Michael Tuexen
b4bf72213a Don't free a data chunk twice.
Found by the clang static code analyzer running for the userland stack.

MFC after:	3 days
2016-07-16 08:11:43 +00:00
Colin Percival
d53ee33e1c Now that potentially buggy versions of Xen are automatically detected
(see r302635), there is no need to force msix interrupt migration off
via loader.conf.

Reverts:	r302184
MFC after:	3 days
2016-07-16 08:04:00 +00:00
Michael Tuexen
56d2f7d8e5 Address a potential memory leak found a the clang static code analyzer
running on the userland stack.

MFC after:	3 days
2016-07-16 07:48:01 +00:00
John Baldwin
a5c6318fc3 Rename PTRACE_SYSCALL to LINUX_PTRACE_SYSCALL.
Suggested by:	kib
2016-07-16 00:54:46 +00:00
Baptiste Daroussin
73a33477ca Add a regression test to make sure the Russian collation is actually working
when importing collation support from Dragonfly/Illumos amdmi3@ tested the
collation branch and reported an issue with Russian collation. John Marino fixed
the issue in Dragonfly and I merged it back to FreeBSD.

Now that Illumos is working on merging our fixes they (Lauri Tirkkonen) found
issues with the commit that fixes the russian collation in UTF-8 that resulted
in a crash with strxfrm(3) and the ISO-8859-5 locale (fixed in FreeBSD r302916).
This small test was written to ensure we do not bring back the old issue with
russian collation while fixing the other issue.
2016-07-15 23:43:23 +00:00
Konstantin Belousov
f470cca578 In ptrace_vm_entry(), do not call vmspace_free() while owning a vm
object lock.

The vmspace_free() operations might need to lock map, object etc on
last dereference.  Postpone the free until object's inspection is
done.

Reported and tested by:	will
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2016-07-15 23:26:33 +00:00
Baptiste Daroussin
01f8ac1bec Add a regression test about the crash with strxfrm and ISO8859-5 locales 2016-07-15 23:24:00 +00:00