skipping read-only pages, which can result in valuable non-text-related
data not getting dumped, the ELF loader and the dynamic loader now mark
read-only text pages NOCORE and the coredump code only checks (primarily) for
complete inaccessibility of the page or NOCORE being set.
Certain applications which map large amounts of read-only data will
produce much larger cores. A new sysctl has been added,
debug.elf_legacy_coredump, which will revert to the old behavior.
This commit represents collaborative work by all parties involved.
The PR contains a program demonstrating the problem.
PR: kern/45994
Submitted by: "Peter Edwards" <pmedwards@eircom.net>, Archie Cobbs <archie@dellroad.org>
Reviewed by: jdp, dillon
MFC after: 7 days
But for some reason the block size is different when a different type of
tape is placed in the drive. This commit fixes that.
PR: 46209
Submitted by: Alex Wang <alex@alexwang.com>
Approved by: mjacob
_KERNEL scope from "src/sys/sys/mchain.h".
Replace each occurrence of the above in _KERNEL scope with the
appropriate macro from the set of hto(be|le)(16|32|64) and
(be|le)toh(16|32|64) from "src/sys/sys/endian.h".
Tested by: tjr
Requested by: comment marked with XXX
prototype for trm_detach and freeing all resources.
While I'm there, handle better errors in trm_attach and remove the
PCI_BASE_ADDR0 definition, since it's what PCIR_MAPS is used for.
MFC after: 3 days
that's being replaced here. This is what /etc/rc does now.
There is no NetBSD devfs, so there is no compatibility issue.
Not objected to by: FreeBSD-rc@yahoogroups.com
Approved by: re (murray)
`J' flag means that newsyslog should wait for previously started compression
jobs to complete before starting a new one for this entry. When it is used
along with the `G' flag, in the case when several logfiles match the pattern
and should be compressed, the newsyslog will compress logs one by one,
ensuring that only one compression job is running at a time.
This prevents newsyslog(8) from overloading system by starting several
compression jobs on big files simultaneously.
Sponsored by: Porta Software Ltd
MFC after: 2 weeks
so as to work correctly on 64-bit platforms.
Reported-by: Jake Burkholder <jake@locore.ca>
Sponsored by: DARPA & NAI Labs.
Approved by: Ian Dowse <iedowse@maths.tcd.ie>
resource starvation we clean-up as much of the vmspace structure as we
can when the last process using it exits. The rest of the structure
is cleaned up when it is reaped. But since exit1() decrements the ref
count it is possible for a double-free to occur if someone else, such as
the process swapout code, references and then dereferences the structure.
Additionally, the final cleanup of the structure should not occur until
the last process referencing it is reaped.
This commit solves the problem by introducing a secondary reference count,
calling 'vm_exitingcnt'. The normal reference count is decremented on exit
and vm_exitingcnt is incremented. vm_exitingcnt is decremented when the
process is reaped. When both vm_exitingcnt and vm_refcnt are 0, the
structure is freed for real.
MFC after: 3 weeks
for more detailed information about sdiff(1). Hopefully this will
make it easier to find how `interactive merging' works with sdiff.
PR: docs/30618
Submitted by: mark@summersault.com
this doesn't work quite right with our groff. They have an older
groff version in the base system, but no real plans to update both
groff and manpages. Fix the .Nm usage locally in our manpages.
PR: docs/41972
Submitted by: Yoshiteru Kageyama <yt-kage@cb3.so-net.ne.jp>
Discussed with: ru and obrien
one space to make the dates line up for easy mental math.
# Too bad only i386 and pc98 are the only parts of the universe
# currently buildable on my box :-(
Hold the page queues lock when calling pmap_unwire_pte_hold() or
pmap_remove_pte(). Use vm_page_sleep_if_busy() in
_pmap_unwire_pte_hold() so that the page queues lock is released
when sleeping.
it possible to make UFS1_ONLY and UFS2_ONLY versions which fit inside the
traditional 16 sectors.
Remove assorted now unneeded hackery.
UFS1_AND_UFS2 still needs another 150 bytes to work, and that is probably
not within our reach, ever.
