doesn't overflow in arc.c in this check:
if (kmem_used() > (kmem_size() * 4) / 5)
return (1);
With this bug ZFS almost doesn't cache.
Only 32bit machines are affected that have vm.kmem_size set to values >=1GB.
Reported by: David Taylor <davidt@yadt.co.uk>
Introduce a new privilege allowing to set certain IP header options
(hop-by-hop, routing headers).
Leave a few comments to be addressed later.
Reviewed by: rwatson (older version, before addressing his comments)
- Improve error handling for load operations.
- Fix a memory corruption bug when using certain linux management apps.
- Allocate all commands up front to avoid OOM deadlocks later on.
tx start threshold ..." Looking around on the mailing lists, and even having
one of these cards I agree the messages should be documented.
Bump doc date.
PR: 88477
while in principle a good idea, opened us up to a race inherrent to
the syncache's direct insertion of incoming TCP connections into the
"completed connection" listen queue, as it transpires that the socket
is inserted before the inpcb is fully filled in by syncache_expand().
The bug manifested with the occasional returning of 0.0.0.0:0 in the
address returned by the accept() system call, which occurred if accept
managed to execute tcp_usr_accept() before syncache_expand() had copied
the endpoint addresses into inpcb connection state.
Re-add tcbinfo locking around the address copyout, which has the effect
of delaying the copy until syncache_expand() has finished running, as
it is run while the tcbinfo lock is held. This is undesirable in that
it increases contention on tcbinfo further, but a more significant
change will be required to how the syncache inserts new sockets in
order to fix this and keep more granular locking here. In particular,
either more state needs to be passed into sonewconn() so that
pru_attach() can fill in the fields *before* the socket is inserted, or
the socket needs to be inserted in the incomplete connection queue
until it is actually ready to be used.
Reported by: glebius (and kris)
Tested by: glebius
Even though I believe this is a good change, it does
have the potential to break certain clients, so it's
good to document the reasoning behind the change.
a run-queue. If the priority is numerically raised only change lowpri
if we're certain it will be correct. Some slop is allowed however
previously we could erroneously raise lowpri for an idle cpu that a
thread had recently run on which lead to errors in load balancing
decisions.
can't find fsck_4.2bsd because there was no fstab file saying what
filesystem type it is looking at so it got the filesystem type from
the disk's label. When that fails admins who haven't been in this
situation before are most likely to try "fsck -t ufs /dev/ad0s1a" because
ufs is the type used in fstab files on working systems but that also fails
complaining it can't find fsck_ufs.
This just sets it up so /stand in the MFS image (/sbin is a symlink
to /stand) includes hard links pointing fsck_4.2bsd and fsck_ufs to
fsck_ffs which is what is present in /sbin on installed systems.
Prodded by: obrien
MFC after: 1 day
it down to where it belongs.
Document 'all-depends-list' target and bump doc date.
PR: 119519
Submitted by: Yuri Pankov <yuri.pankov@gmail.com>
Reviewed by: flz
Use ioctl() to get the window size in iostat(8), and force a new
header to be prepended to the output every time the current
window size changes. Change the number of lines before each
header to `rows - 3' when the terminal is resized, so that the
full terminal length can be used for output lines.
PR: bin/119705
Submitted by: keramida
Approved by: maxim
MFC after: 2 weeks
GNU tar changed -l to match SUSv2 a couple of years ago,
so bsdtar no longer needs to pander to this particular GNUism.
Thanks to: Debian maintainers
MFC after: 7 days
