machines, only a few 486 machines that used it, and those haven't had
enough memory to run FreeBSD for quite some time (often limited to
16MB).
Not to be confused with the Machine Check Architecture, which is still
very much alive and used (and untouched by this commit).
No Objection From: arch@
I found that at least with Chelsio NICs TOE sockets quite often report
negative sbspace() values. Using unsigned variable to store it resulted
in attempts to aggregate too much data in one sosend() call, that caused
errors and following connection termination.
MFC after: 2 weeks
The {powerpc,powerpc64,sparc64} LINT kernel builds fail with this error:
sys/dev/vt/vt_buf.c:198: warning: 'vtbuf_htw' defined but not used
Move vtbuf_htw() inside the '#if SC_NO_CUTPASTE' block where it belongs, and
put it in the proper order.
This fixes the immedate issue w/ vt(4), but all three then fail on different
issues.
Reviewed by: emaste
It's not a proper fix, but should be better than what we have now.
Since it got broken some six months ago it results in an incredibly
annoying and trivially reproducible panic every time eg an USB disk
gets disconnected.
MFC after: 2 weeks
Sponsored by: DARPA, AFRL
Previously we would truncate tm.tm_year for any time_t corresponding to
a year that does not fit in int. This issue was discovered because it
caused the bash-static build to fail when linking with LLD.
As reported by Rafael Espíndola:
Configure has
AC_FUNC_MKTIME
which expands to a test of mktime that fails with the freebsd
implementation. Given that, bash compiles a mktime.o file that
defines just mktime and uses localtime. That goes in a .a file
that is before libc.
The freebsd libc defines mktime in localtime.o, which also defines
localtime among other functions.
When lld sees an undefined reference to mktime from libc, it uses
the bash provided one and then tries to find a definition of
localtime. It is found on libc's localtime.o, but now we have a
duplicated error.
The reason it works with bfd is that bash doesn't use mktime
directly and the undefined reference from libc is resolved to the
libc implementation. It would also fail to link if bash itself
directly used mktime.
The bash-static configure test verifies that, for many values of t, either
localtime(t) returns NULL or mktime(localtime(t)) == t. This test failed
when localtime returned a truncated tm_year.
This was fixed in tzcode in 2004 but has persisted in our tree since
rS2708.
Reported by: Rafael Espíndola
Reviewed by: bapt
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D9534
interrupt arrives in fork_trampoline after sp_el0 was written we may then
switch to a new thread, enter userland so change this stack pointer, then
return to this code with the wrong value. This fixes this case by moving
the load of sp_el0 until after interrupts have been disabled.
Reported by: Mark Millard (markmi@dsl-only.net)
Sponsored by: ABT Systems Ltd
Differential Revision: https://reviews.freebsd.org/D9593
Current bxe probe function won't attach to devices with the NetXtreme II
BCM57840 2x20GbE chip, enable it by adding it's chip ID to the list of
supported chips.
Tested on: HP ProLiant WS460c Gen9
Reviewed by: gnn
MFC after: 1 week
Sponsored by: Citrix Systems R&D
Differential Revision: https://reviews.freebsd.org/D9609
we will import a newer version of the Linux code so the linuxkpi was not
used.
This is still missing 10G support, and multicast has not been tested.
Reviewed by: gnn
Obtained from: ABT Systems Ltd
Sponsored by: SoftIron Inc
Differential Revision: https://reviews.freebsd.org/D8549
On laptops like the ThinkPad X240, ClickPad buttons are located at the
top. The hw.psm.synaptics.softbuttons_y sysctl was supposed to allow this
by setting the value to a negative one (e.g. -1700). However, the
condition was wrong (double negative), and doing that placed the buttons
in an unreachable area.
PR: 216342
Submitted by: Greg V <greg@unrelenting.technology>
MFC after: 1 week
This effectively provides the same benefit as applying MADV_FREE inline
upon every execve, since the page daemon invokes lowmem handlers prior to
scanning the inactive queue. It also has less overhead; the cost of
applying MADV_FREE is very noticeable on many-CPU systems since it includes
that of a TLB shootdown of global PTEs. For instance, this change nearly
halves the system CPU usage during a buildkernel on a 128-vCPU EC2
instance (with some other patches applied).
Benchmarked by: cperciva (earlier version)
Reviewed by: kib
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D9586
This solves several problems.
First of all, cmc_throttle is specified in seconds and there was no
conversion between ticks and seconds when they were mixed together.
Second, we avoid potential problems with ticks wrapping around.
Resolution of time_uptime should be sufficient for the throttling
purposes.
Discussed with: jhb
MFC after: 12 days
Previously, if the threshold was changed, then MC_CTL2_CMCI_EN would get
cleared and the logic would switch to the polling only mode.
Discussed with: jhb
MFC after: 2 weeks
NSS modules are loaded when nsswitch.conf is parsed and may register their
own atexit handlers with libc. nss_atexit() unloads any dynamically loaded
NSS modules, so it should run only after the modules' atexit handlers have
been invoked.
MFC after: 2 weeks
Sponsored by: Dell EMC Isilon
getdents64() with wrapper over kern_getdirentries().
The patch was originally written by emaste@ and then adapted by trasz@
and me.
Note:
1. I divided linux_getdents() and linux_readdir() as in case when the
getdents() called with count = 1 (readdir() case) it can overwrite
user stack (by writing to user buffer pointer more than 1 byte).
2. Linux returns EINVAL in case when user supplied buffer is not enough
to contain fetched dirent.
3. Linux returns ENOTDIR in case when fd points to not a directory.
Reviewed by: trasz@
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D2210
All this code is based on assumption that data will be stored in one piece,
and since buffer size if known and fixed, it is easier to hardcode it.
MFC after: 2 weeks
This patch adds a new function to the server krpc called
svcpool_close(). It is similar to svcpool_destroy(), but does not free
the data structures, so that the pool can be used again.
This function is then used instead of svcpool_destroy(),
svcpool_create() when the nfsd threads are killed.
PR: 204340
Reported by: Panzura
Approved by: rmacklem
Obtained from: rmacklem
MFC after: 1 week
Define them as RLIM_INFINITY. This is allowed by POSIX in case all
resource limits are representable in an object of type rlim_t. Since
we do not allow negative rlim_t, with some strength this definition is
conforming.
We are not conforming fully still because POSIX requires rlim_t to be
unsigned type. Fixing this without breaking ABI to redefine
RLIM_INFINITY is impossible.
PR: 209729
Submitted by: bltsrc@mail.ru
Exp-run done by: antoine
MFC after: 2 weeks
Since locks are dropped when a thread suspends, it's possible for another
thread to deliver a signal to the suspended thread. If the thread awakens from
suspension without checking for signals, it may go to sleep despite having
a pending signal that should wake it up. Therefore the suspension check is
done first, so any signals sent while suspended will be caught in the
subsequent signal check.
Reviewed by: kib
Approved by: kib (mentor)
MFC after: 2 weeks
Sponsored by: Dell EMC
Differential Revision: https://reviews.freebsd.org/D9530
In general case m_pullup() does not really guarantee any data alignment.
Instead of depenting on side effects caused by data being always copied
out of mbuf cluster (which is probably a bug by itself), always allocate
aligned BHS buffer and read data there directly from socket.
While there, reuse new icl_conn_receive_buf() function to read digests.
The code could probably be even more optimized to aggregate those reads,
but until that done, this is still easier then the way it was before.
MFC after: 2 weeks
There could be a race between the vm daemon setting RACCT_RSS based on
the vm space and vmspace_exit (called from exit1) resetting RACCT_RSS to
zero. In that case we can get a zombie process with non-zero RACCT_RSS.
If the process is jailed, that may break accounting for the jail.
There could be other consequences.
Fix this race in the vm daemon by updating RACCT_RSS only when a process
is in the normal state. Also, make accounting a little bit more
accurate by refreshing the page resident count after calling
vm_pageout_map_deactivate_pages().
Finally, add an assert that the RSS is zero when a process is reaped.
PR: 210315
Reviewed by: trasz
Differential Revision: https://reviews.freebsd.org/D9464
Add ACPI device 80860F14 with _UID 3 to the list of known devices. It
make SD card available on NUCs and Minnowboard. Previously added _UID 1
covered only eMMC devices.
Reported by: kib@
MFC after: 1 week
Cleaned up some spaces where tabs should be.
efipart_ioctl() DIOCGMEDIASIZE needs to use uint64_t, not off_t
Reviewed by: allanjude
Approved by: allanjude (mentor)
Differential Revision: https://reviews.freebsd.org/D9562
