src/sys/compat/linux/linux_futex.c, branch releng/10.2FreeBSD source treehttps://cgit-dev.freebsd.org/src/atom?h=releng%2F10.22016-01-14T09:10:46Zo Fix filemon and bmake meta-mode stability issues. [EN-16:01]2016-01-14T09:10:46ZGleb Smirnoffglebius@FreeBSD.org2016-01-14T09:10:46Zurn:sha1:7f86e2d395476d8856f8ec778b41942180ef632c
o Fix invalid TCP checksums with pf(4). [EN-16:02.pf]
o Fix YP/NIS client library critical bug. [EN-16:03.yplib]
o Fix SCTP ICMPv6 error message vulnerability. [SA-16:01.sctp]
o Fix ntp panic threshold bypass vulnerability. [SA-16:02.ntp]
o Fix Linux compatibility layer incorrect futex handling. [SA-16:03.linux]
o Fix Linux compatibility layer setgroups(2) system call. [SA-16:04.linux]
o Fix TCP MD5 signature denial of service. [SA-16:05.tcp]
o Fix insecure default bsnmpd.conf permissions. [SA-16:06.bsnmpd]
Errata: FreeBSD-EN-16:01.filemon
Errata: FreeBSD-EN-16:02.pf
Errata: FreeBSD-EN-16:03.yplib
Security: FreeBSD-SA-16:01.sctp, CVE-2016-1879
Security: FreeBSD-SA-16:02.ntp, CVE-2015-5300
Security: FreeBSD-SA-16:03.linux, CVE-2016-1880
Security: FreeBSD-SA-16:04.linux, CVE-2016-1881
Security: FreeBSD-SA-16:05.tcp, CVE-2016-1882
Security: FreeBSD-SA-16:06.bsnmpd, CVE-2015-5677
Approved by: so
MFC r276511:2015-01-08T06:29:52ZDmitry Chagindchagin@FreeBSD.org2015-01-08T06:29:52Zurn:sha1:ded2fb94990b1225f0525f2c08f64f3081e53c11
Fix Clang warning: passing 'unsigned int *' to parameter of type 'int *'
converts between pointers to integer types with different sign.
MFC r266924:2014-06-03T04:29:26ZDmitry Chagindchagin@FreeBSD.org2014-06-03T04:29:26Zurn:sha1:e4ee66f898ba7682ccef264d6441e072953d5a19
Glibc was switched to the FUTEX_WAIT_BITSET op and CLOCK_REALTIME
flag has been added instead of FUTEX_WAIT to replace the FUTEX_WAIT
logic which needs to do gettimeofday() calls before the futex syscall
to convert the absolute timeout to a relative timeout.
Before this the CLOCK_MONOTONIC used by the FUTEX_WAIT_BITSET op.
When the FUTEX_CLOCK_REALTIME is specified the timeout is an absolute
time, not a relative time. Rework futex_wait to handle this.
On the side fix the futex leak in error case and remove useless
parentheses.
Properly calculate the timeout for the CLOCK_MONOTONIC case.
Tested by: Hans Petter Selasky
MFC r266782:2014-05-31T05:59:55ZDmitry Chagindchagin@FreeBSD.org2014-05-31T05:59:55Zurn:sha1:0ef876a5f5ecd194eb8feca2e4a9730d10d3b8d3
In r218101 I have not changed properly the futex syscall definition.
Some Linux futex ops atomically verifies that the futex address uaddr
(uval) contains the value val. Comparing signed uval and unsigned val
may lead to an unexpected result, mostly to a deadlock.
So copyin uaddr to an unsigned int to compare the parameters correctly.
While here change ktr records to print parameters in more readable format.
Fix some typos that were causing probe argument types to show up as unknown.2013-10-01T15:40:27ZMark Johnstonmarkj@FreeBSD.org2013-10-01T15:40:27Zurn:sha1:92c6196caadbcb648cd757d5f4b4e0b6426097f9
Reviewed by: rwatson (mac provider)
Approved by: re (glebius)
MFC after: 1 week
Arithmetic on pointers takes into account the size of the type. Properly cast the pointer to avoid incorrect pointer scaling.2013-01-25T14:40:54ZDmitry Chagindchagin@FreeBSD.org2013-01-25T14:40:54Zurn:sha1:4d04cf1d9ea987f3a8f55ef409067f468d13bed3
MFC after: 1 Week
- >500 static DTrace probes for the linuxulator2012-05-05T19:42:38ZAlexander Leidingernetchild@FreeBSD.org2012-05-05T19:42:38Zurn:sha1:19e252baebe7a7466b33c27560420b7d95fe294d
- DTrace scripts to check for errors, performance, ...
they serve mostly as examples of what you can do with the static probe;s
with moderate load the scripts may be overwhelmed, excessive lock-tracing
may influence program behavior (see the last design decission)
Design decissions:
- use "linuxulator" as the provider for the native bitsize; add the
bitsize for the non-native emulation (e.g. "linuxuator32" on amd64)
- Add probes only for locks which are acquired in one function and released
in another function. Locks which are aquired and released in the same
function should be easy to pair in the code, inter-function
locking is more easy to verify in DTrace.
- Probes for locks should be fired after locking and before releasing to
prevent races (to provide data/function stability in DTrace, see the
man-page of "dtrace -v ..." and the corresponding DTrace docs).
Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.2011-11-07T06:44:47ZEd Schoutened@FreeBSD.org2011-11-07T06:44:47Zurn:sha1:d745c852becf3792a2185003947324721209195a
This means that their use is restricted to a single C file.
Remove now-obsolete comment.2011-03-10T19:50:12ZJohn Baldwinjhb@FreeBSD.org2011-03-10T19:50:12Zurn:sha1:c28a98e9487a26cd365035014e2d3d11d7e07361
Submitted by: netchild
MFC after: 1 week
Print out shared flag for debug purpose.2011-03-03T18:29:55ZDmitry Chagindchagin@FreeBSD.org2011-03-03T18:29:55Zurn:sha1:3a4bc256910bbc1158bf4dde7c92b10632c66e42
MFC after: 1 Week