vm_map_insert(), the kmem_back() assumption about newly inserted
entry might be broken due to interference of two factors. In the low
memory condition, when vm_page_alloc() returns NULL, supplied map is
unlocked. If another thread performs kmem_malloc() meantime, and its
map entry is placed right next to our thread map entry in the map,
both entries wire count is still 0 and entries are coalesced due to
vm_map_simplify_entry().
Mark new entry with MAP_ENTRY_IN_TRANSITION to prevent coalesce.
Fix some style issues, tighten the assertions to account for
MAP_ENTRY_IN_TRANSITION state.
Reported and tested by: pho
Reviewed by: alc
- Allocate coherent DMA memory for the request/response queue area and
and the FC scratch area.
These changes allow isp(4) to work properly on sparc64 with usage of the
IOMMU streaming buffers enabled.
Approved by: mjacob
MFC after: 2 weeks
Catch a set vnet upon return to user space. This usually
means return paths with CURVNET_RESTORE() missing.
If VNET_DEBUG is turned on we can even tell the function
that did the CURVNET_SET() which is really helpful; else
we print "N/A".
Sponsored by: The FreeBSD Foundation
Sponsored by: CK Software GmbH
Reviewed by: jhb
MFC after: 11 days
While updating Tx stats, already freed node could be referred and cause
page fault. To avoid such panic, spool Tx stats in driver's softc. Then,
on every ratectl interval, grab node though ieee80211_iterate_nodes() and
update ratectl stats.
* Simplify some code in run_iter_func().
* Fix typo
* Use memset instead of bzero (hselasky @)
PR: kern/153938
Submitted by: PseudoCylon <moonlightakkiy@yahoo.ca>
Approved by: thompsa (mentor)
The algorithm is supposed to work as follows:
in order to prevent starvation, when a new client starts being served we
record the start time and reset the counter of bytes served.
We then switch to a new client after a certain amount of time or bytes,
even if the current one still has pending requests.
To avoid charging a new client the time of the first seek,
we start counting time when the first request is served.
Unfortunately a bug in the previous version of the code failed
to set the start time in certain cases, resulting in some processes
exceeding their timeslice.
The fix (in this patch) is trivial, though it took a while to find
out and replicate the bug.
Thanks to Tommaso Caprai for investigating and fixing the problem.
Submitted by: Tommaso Caprai
MFC after: 1 week
at the Univ-of-Del. Basically when a 1-to-1 socket did a
socket/bind/send(data)/close. If the timing was right
we would dereference a socket that is NULL.
MFC after: 1 month
object's size field. Previously, that field was always zero, even
when the object tn_reg.tn_aobj contained numerous pages.
Apply style fixes to tmpfs_reg_resize().
In collaboration with: kib
cause OpenSSL to parse past the end of the message.
Note: Applications are only affected if they act as a server and call
SSL_CTX_set_tlsext_status_cb on the server's SSL_CTX. This includes
Apache httpd >= 2.3.3, if configured with "SSLUseStapling On".
Security: http://www.openssl.org/news/secadv_20110208.txt
Security: CVE-2011-0014
Obtained from: OpenSSL CVS
