LLDB is usable for userland core file and live debugging on amd64, and
for userland core file debugging on arm64. In general it works at least
as well on FreeBSD as our in-tree gdb version, so enable it by default
to allow for broader use and testing.
An LLDB tutorial is available at http://lldb.llvm.org/tutorial.html, and
a table mapping GDB commands to LLDB commands can be found at
http://lldb.llvm.org/lldb-gdb.html .
LLDB also has some level of support for FreeBSD on arm, mips, i386,
and powerpc, but is not yet ready to have them enabled by default.
Reviewed by: gnn
Relnotes: Yes
pxeboot in tftp loader mode (when built with LOADER_TFTP_SUPPORT) now
prefix all the path to open with the path obtained via the option 'root-path'
directive.
This allows to be able to use the traditional content /boot out of box. Meaning
it now works pretty much like all other loaders. It simplifies hosting hosting
multiple version of FreeBSD on a tftp server.
As a consequence, pxeboot does not look anymore for a pxeboot.4th (which was
never provided)
Note: that pxeboot in tftp loader mode is not built by default.
Reviewed by: rpokala
Relnotes: yes
Sponsored by: Gandi.net
Differential Revision: https://reviews.freebsd.org/D4590
The EFI memory map may change before or during the first
ExitBootServices call. In that case ExitBootServices returns an error,
and GetMemoryMap and ExitBootServices must be retried.
Glue together calls to GetMemoryMap(), ExitBootServices() and storage of
(now up-to-date) MODINFOMD_EFI_MAP metadata within a single function.
That new function - bi_add_efi_data_and_exit() - uses space previously
allocated in bi_load_efi_data() to store the memory map (it will fail if
that space is too short). It handles re-calling GetMemoryMap() once to
update the map key if necessary. Finally, if ExitBootServices() is
successful, it stores the memory map and its header as MODINFOMD_EFI_MAP
metadata.
ExitBootServices() calls are now done earlier, from within arch-
independent bi_load() code.
PR: 202455
Submitted by: Ganael LAPLANCHE
Reviewed by: kib
MFC after: 2 weeks
Relnotes: Yes
Differential Revision: https://reviews.freebsd.org/D4296
Before the change, things like lle state were queried via
SIOCGNBRINFO_IN6 by ndp(8) for _each_ lle entry in dump.
This ioctl was added in 1999, probably to avoid touching rtsock code.
This change maps SIOCGNBRINFO_IN6 data to standard rtsock dump the
following way:
expire (already) maps to rtm_rmx.rmx_expire
isrouter -> rtm_flags & RTF_GATEWAY
asked -> rtm_rmx.rmx_pksent
state -> rtm_rmx.rmx_state (maps to rmx_weight via define)
Reviewed by: ae
risk leaving the connection in an indeterminate state if the server fails
to send a chunk delimiter. Depending on the application and on the sizes
of the preceding chunks, the result can be anything from missing data to a
segfault. With this patch, it will be reported as a protocol error.
PR: 204771
MFC after: 1 week
If source of ARP request didn't pass the routing check
(e.g. not in directly connected network), be polite and
still answer the request instead of dropping frame.
Reported by: quadro at irc@rusnet
into the FreeBSD test suite
There's no functional change with these testcases; they're purposely
being left in TAP format for the time being
Other testcases which crash on amd64/i386 as-is have not been
integrated yet (they need to be retested on a later version of
CURRENT, as I haven't used i386 in some time)
MFC after: 3 weeks
Sponsored by: EMC / Isilon Storage Division
buffer for each block number in the range with gbincore(), look up the
next instantiated buffer with the logical block number which is
greater or equal to the next lblkno. This significantly speeds up the
iteration for sparce-populated range.
Move the iteration into new helper bnoreuselist(), which is structured
similarly to flushbuflist().
Reported and tested by: pho
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
the type stability of the buffers memory. Instead of memoizing
pointer to the next buffer and validating it, remember the next
logical block number in the bo list and re-lookup.
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
lib/libc/tests/nss
- Convert the testcases to ATF
- Do some style(9) cleanups:
-- Sort headers
-- Apply indentation fixes
-- Remove superfluous parentheses
- Explicitly print out debug printfs for use with `kyua {debug,report}`; for
items that were overly noisy, they've been put behind #ifdef DEBUG
conditionals
- Fix some format strings
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division
testing for kernel features via the feature_present(3) libcall
The semantics are similar to the other macros in the header (skip
testcase with ATF macro; exit with appropriate exit code with the
PLAIN macro)
MFC after: 1 week
Sponsored by: EMC / Isilon Storage Division
to do is to clean up the timer handling using the async-drain.
Other optimizations may be coming to go with this. Whats here
will allow differnet tcp implementations (one included).
Reviewed by: jtl, hiren, transports
Sponsored by: Netflix Inc.
Differential Revision: D4055
When a multipath member is orphaned its access members are zeroed before its
removed if marked for wither, so prevent any future calls to g_access on
such members.
This prevents a panic on debug kernels which validates the resultant values
aren't negative.
Reviewed by: mav
MFC after: 2 weeks
Sponsored by: Multiplay
Differential Revision: https://reviews.freebsd.org/D4416
It may only be used with WITH_AUTO_OBJ, which the WITH_DIRDEPS_BUILD does. We
could support this in the normal build as well if we forced creating the directory
and setting .OBJDIR.
Sponsored by: EMC / Isilon Storage Division
The intention was to just limit leading zeroes on numeric names. That
check is now improved to also catch the leading spaces and '+' that
strtoul can pass through.
PR: 204897
MFC after: 3 days
(1) The pmap argument passed to the function must be current pmap only.
(2) The process must be single threaded as the function is called either
when a process is exiting or from exec_new_vmspace().
Remove pmap_tlb_flush_ng() which is not used anywhere now.
Approved by: kib (mentor)
When using lagg failover mode neither Gratuitous ARP (IPv4) or Unsolicited
Neighbour Advertisements (IPv6) are sent to notify other nodes that the
address may have moved.
This results is slow failover, dropped packets and network outages for the
lagg interface when the primary link goes down.
We now use the new if_link_state_change_cond with the force param set to
allow lagg to force through link state changes and hence fire a
ifnet_link_event which are now monitored by rip and nd6.
Upon receiving these events each protocol trigger the relevant
notifications:
* inet4 => Gratuitous ARP
* inet6 => Unsolicited Neighbour Announce
This also fixes the carp IPv6 NA's that stopped working after r251584 which
added the ipv6_route__llma route.
The new behavour can be controlled using the sysctls:
* net.link.ether.inet.arp_on_link
* net.inet6.icmp6.nd6_on_link
Also removed unused param from lagg_port_state and added descriptions for the
sysctls while here.
PR: 156226
MFC after: 1 month
Sponsored by: Multiplay
Differential Revision: https://reviews.freebsd.org/D4111
in pmap_remove_pages().
Some points were considered:
(1) There is no range TLB flush cp15 function.
(2) There is no target selection for hardware TLB flush broadcasting.
(3) Some memory ranges could be mapped sparsely.
(4) Some memory ranges could be quite large.
Tested by buildworld on RPi2 and Jetson TK1, i.e. 4 core platforms.
It turned out that the buildworld time is faster. On the other hand,
when the postponed TLB flush was also removed from pmap_remove_pages(),
the result was worse. But pmap_remove_pages() is called for removing
all user mapping from a process, thus it's quite expected.
Note that the postponed TLB flushes came here from i386 pmap where
hardware TLB flush broadcasting is not available.
Approved by: kib (mentor)
Add -N flag to reboot(8) which bypasses the userland sync(2) during
reboot(8) while still allow the kernel sync during the reboot(2) syscall
to occur.
An example use of this is when rebooting with disconnected iSCSI sessions
which would otherwise cause the reboot to hang on BIOs that will never
complete.
Reviewed by: bjk
MFC after: 2 weeks
Sponsored by: Multiplay
Differential Revision: https://reviews.freebsd.org/D4449
This fixes an issue observed on Cortex A7 (RPi2) and on Cortex A15
(Jetson TK1) causing various memory corruptions. It turned out that
even L2 page table with no valid mapping might be a subject of such
caching.
Note that not all platforms have intermediate TLB caching implemented.
An open question is if this fix is sufficient for all platforms with
this feature.
Approved by: kib (mentor)
