Revision tags: vendor/tzdata/tzdata2010l, vendor/acpica/20100806, vendor/opensolaris/20100802, vendor/tzdata/tzdata2010k, vendor/octeon-sdk/1.9.0, release/8.1.0_cvs, release/8.1.0, vendor/clang/clang-r108243, vendor/llvm/llvm-r108243, vendor/acpica/20100702, vendor/wpa/0.6.10, vendor/acpica/20100528, vendor/clang/clang-r104832, vendor/llvm/llvm-r104832, vendor/bind9/9.4-ESV-R2, vendor/bind9/9.6.2-P2, vendor/tzdata/tzdata2010j, vendor/xz/20100412, vendor/acpica/20100428, vendor/openssh/5.5p1, vendor/testfloat/2a, vendor/zlib/1.2.5, vendor/tzdata/tzdata2010i, vendor/zlib/1.2.4.3, vendor/tzdata/tzdata2010h, vendor/acpica/20100331, vendor/openssl/0.9.8n, vendor/zlib/1.2.4.1, vendor/bind9/9.4-ESV-R1, vendor/netcat/4.7, vendor/tzcode/tzcode2010f, vendor/tzdata/tzdata2010f, release/7.3.0_cvs, release/7.3.0, vendor/bind9/9.6.2-P1, vendor/zlib/1.2.4, vendor/tzdata/tzdata2010e, vendor/openssh/5.4p1, vendor/acpica/20100304, vendor/bind9/9.6.2, vendor/tzcode/tzcode2010c, vendor/tzdata/tzdata2010c, vendor/openssl/0.9.8m, vendor/dtc/dtc-d75b33af, vendor/dtc/1.2.0, vendor/tzcode/tzcode2010a, vendor/bind9/9.4-ESV, vendor/tzdata/tzdata2010b, vendor/sendmail/8.14.4, vendor/bind9/9.6.1-P3, vendor/acpica/20100121, vendor/netcat/4.6, vendor/tzdata/tzdata2010a, vendor/one-true-awk/20091126, vendor/tzdata/tzdata2009u, vendor/tzdata/tzdata2009t, vendor/tzcode/tzcode2009t |
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7e767511 |
| 19-Dec-2009 |
Konstantin Belousov <kib@FreeBSD.org> |
MFC r198508, r198509: Reimplement pselect() in kernel, making change of sigmask and sleep atomic.
MFC r198538: Move pselect(3) man page to section 2.
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6ddf1cd2 |
| 19-Dec-2009 |
Konstantin Belousov <kib@FreeBSD.org> |
MFC r197963: Put process-directed signals to the process queue unconditionally, selecting the thread to deliver the signal only by the thread returning to usermode. Change cursig() and postsig() to l
MFC r197963: Put process-directed signals to the process queue unconditionally, selecting the thread to deliver the signal only by the thread returning to usermode. Change cursig() and postsig() to look both into the thread and process signal queues.
MFC r197976: Fix typo.
MFC r200082: Remove wrong assertion. Debugee is allowed to lose a signal
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f2a664ac |
| 15-Jul-2010 |
John Baldwin <jhb@FreeBSD.org> |
Retire td_syscalls now that it is no longer needed.
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34a39b7b |
| 04-Jul-2010 |
Konstantin Belousov <kib@FreeBSD.org> |
Obey sv_syscallnames bounds in syscallname().
Reported and tested by: pho
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fc0de8f0 |
| 30-Jun-2010 |
John Baldwin <jhb@FreeBSD.org> |
Move prototypes for kern_sigtimedwait() and kern_sigprocmask() to <sys/syscallsubr.h> where all other kern_<syscall> prototypes live.
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153ac44c |
| 28-Jun-2010 |
Konstantin Belousov <kib@FreeBSD.org> |
Count number of threads that enter and leave dynamically registered syscalls. On the dynamic syscall deregistration, wait until all threads leave the syscall code. This somewhat increases the safety
Count number of threads that enter and leave dynamically registered syscalls. On the dynamic syscall deregistration, wait until all threads leave the syscall code. This somewhat increases the safety of the loadable modules unloading.
Reviewed by: jhb Tested by: pho MFC after: 1 month
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699d648a |
| 23-Jun-2010 |
Konstantin Belousov <kib@FreeBSD.org> |
Remove the support for int13 FPU exception reporting on i386. It is believed that all 486-class CPUs FreeBSD is capable to run on, either have no FPU and cannot use external coprocessor, or have FPU
Remove the support for int13 FPU exception reporting on i386. It is believed that all 486-class CPUs FreeBSD is capable to run on, either have no FPU and cannot use external coprocessor, or have FPU on the package and can use #MF.
Reviewed by: bde Tested by: pho (previous version)
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f05a9476 |
| 17-Jun-2010 |
Rui Paulo <rpaulo@FreeBSD.org> |
Make DTrace syscall provider work again by including opt_kdtrace.h here.
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b2318c28 |
| 26-May-2010 |
Konstantin Belousov <kib@FreeBSD.org> |
Allow to use syscallname(9) outside subr_trap.c.
MFC after: 1 month
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afe1a688 |
| 23-May-2010 |
Konstantin Belousov <kib@FreeBSD.org> |
Reorganize syscall entry and leave handling.
Extend struct sysvec with three new elements: sv_fetch_syscall_args - the method to fetch syscall arguments from usermode into struct syscall_args. The
Reorganize syscall entry and leave handling.
Extend struct sysvec with three new elements: sv_fetch_syscall_args - the method to fetch syscall arguments from usermode into struct syscall_args. The structure is machine-depended (this might be reconsidered after all architectures are converted). sv_set_syscall_retval - the method to set a return value for usermode from the syscall. It is a generalization of cpu_set_syscall_retval(9) to allow ABIs to override the way to set a return value. sv_syscallnames - the table of syscall names.
Use sv_set_syscall_retval in kern_sigsuspend() instead of hardcoding the call to cpu_set_syscall_retval().
The new functions syscallenter(9) and syscallret(9) are provided that use sv_*syscall* pointers and contain the common repeated code from the syscall() implementations for the architecture-specific syscall trap handlers.
Syscallenter() fetches arguments, calls syscall implementation from ABI sysent table, and set up return frame. The end of syscall bookkeeping is done by syscallret().
Take advantage of single place for MI syscall handling code and implement ptrace_lwpinfo pl_flags PL_FLAG_SCE, PL_FLAG_SCX and PL_FLAG_EXEC. The SCE and SCX flags notify the debugger that the thread is stopped at syscall entry or return point respectively. The EXEC flag augments SCX and notifies debugger that the process address space was changed by one of exec(2)-family syscalls.
The i386, amd64, sparc64, sun4v, powerpc and ia64 syscall()s are changed to use syscallenter()/syscallret(). MIPS and arm are not converted and use the mostly unchanged syscall() implementation.
Reviewed by: jhb, marcel, marius, nwhitehorn, stas Tested by: marcel (ia64), marius (sparc64), nwhitehorn (powerpc), stas (mips) MFC after: 1 month
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Revision tags: vendor/acpica/20091214, vendor/ntp/4.2.4p8, vendor/bind9/9.4.3-P4, vendor/bind9/9.6.1-P2, release/8.0.0_cvs, release/8.0.0, vendor/tzdata/tzdata2009s, vendor/acpica/20091112, vendor/tzcode/tzcode2009r, vendor/tzdata/tzdata2009r, vendor/clang/clang-r86025, vendor/llvm/llvm-r86025, vendor/tzcode/tzcode2009q, vendor/tzdata/tzdata2009q, vendor/tzdata/tzdata2009p |
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066d836b |
| 27-Oct-2009 |
Konstantin Belousov <kib@FreeBSD.org> |
Current pselect(3) is implemented in usermode and thus vulnerable to well-known race condition, which elimination was the reason for the function appearance in first place. If sigmask supplied as arg
Current pselect(3) is implemented in usermode and thus vulnerable to well-known race condition, which elimination was the reason for the function appearance in first place. If sigmask supplied as argument to pselect() enables a signal, the signal might be delivered before thread called select(2), causing lost wakeup. Reimplement pselect() in kernel, making change of sigmask and sleep atomic.
Since signal shall be delivered to the usermode, but sigmask restored, set TDP_OLDMASK and save old mask in td_oldsigmask. The TDP_OLDMASK should be cleared by ast() in case signal was not gelivered during syscall execution.
Reviewed by: davidxu Tested by: pho MFC after: 1 month
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Revision tags: vendor/clang/clang-r84949, vendor/llvm/llvm-r84949, vendor/tzdata/tzdata2009o, vendor/llvm/llvm-r84176, vendor/clang/clang-r84175, vendor/clang/clang-r84119, vendor/llvm/llvm-r84119, vendor/acpica/20091013 |
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6b286ee8 |
| 11-Oct-2009 |
Konstantin Belousov <kib@FreeBSD.org> |
Currently, when signal is delivered to the process and there is a thread not blocking the signal, signal is placed on the thread sigqueue. If the selected thread is in kernel executing thr_exit() or
Currently, when signal is delivered to the process and there is a thread not blocking the signal, signal is placed on the thread sigqueue. If the selected thread is in kernel executing thr_exit() or sigprocmask() syscalls, then signal might be not delivered to usermode for arbitrary amount of time, and for exiting thread it is lost.
Put process-directed signals to the process queue unconditionally, selecting the thread to deliver the signal only by the thread returning to usermode, since only then the thread can handle delivery of signal reliably. For exiting thread or thread that has blocked some signals, check whether the newly blocked signal is queued for the process, and try to find a thread to wakeup for delivery, in reschedule_signal(). For exiting thread, assume that all signals are blocked.
Change cursig() and postsig() to look both into the thread and process signal queues. When there is a signal that thread returning to usermode could consume, TDF_NEEDSIGCHK flag is not neccessary set now. Do unlocked read of p_siglist and p_pendingcnt to check for queued signals.
Note that thread that has a signal unblocked might get spurious wakeup and EINTR from the interruptible system call now, due to the possibility of being selected by reschedule_signals(), while other thread returned to usermode earlier and removed the signal from process queue. This should not cause compliance issues, since the thread has not blocked a signal and thus should be ready to receive it anyway.
Reported by: Justin Teller <justin.teller gmail com> Reviewed by: davidxu, jilles MFC after: 1 month
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Revision tags: vendor/openssh/5.3p1, vendor/tzdata/tzdata2009n, vendor/x86emu/4.6, vendor/tzdata/tzdata2009m, vendor/acpica/20090903, vendor/openssl/0.9.8k-dtls-fixes, vendor/pf-sys/4.5.002, vendor/pf/4.5, vendor/tzdata/tzdata2009l, vendor/openbsm/1.1-P-2, vendor/acpica/20090730, vendor/bind9/9.4.3-P3, vendor/bind9/9.6.1-P1, vendor/less/v436, vendor/tzcode/tzcode2009k, vendor/tzdata/tzdata2009k, vendor/openbsm/1.1-P-1 |
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f33a947b |
| 14-Jul-2009 |
Konstantin Belousov <kib@FreeBSD.org> |
Add new msleep(9) flag PBDY that shall be specified together with PCATCH, to indicate that thread shall not be stopped upon receipt of SIGSTOP until it reaches the kernel->usermode boundary.
Also ch
Add new msleep(9) flag PBDY that shall be specified together with PCATCH, to indicate that thread shall not be stopped upon receipt of SIGSTOP until it reaches the kernel->usermode boundary.
Also change thread_single(SINGLE_NO_EXIT) to only stop threads at the user boundary unconditionally.
Tested by: pho Reviewed by: jhb Approved by: re (kensmith)
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Revision tags: vendor/tcsh/6.17.00, vendor/clang/clang-r74788, vendor/llvm/llvm-r74788, vendor/clang/clang-r74383, vendor/llvm/llvm-r74383, vendor/acpica/20090625, vendor/bind9/9.6.1, vendor/clang/clang-r73984, vendor/llvm/llvm-r73984, vendor/clang/clang-r73954, vendor/llvm/llvm-r73954, vendor/clang/clang-r73879, vendor/llvm/llvm-r73879, vendor/tzdata/tzdata2009j, vendor/opensolaris/20080410b, vendor/clang/clang-r73340, vendor/llvm/llvm-r73340, vendor/tzcode/tzcode2009i, vendor/tzdata/tzdata2009i, vendor/clang/clang-r73070, vendor/llvm/llvm-r73070, vendor/openssl/0.9.8k, vendor/clang/clang-r73021, vendor/llvm/llvm-r73021, vendor/clang/clang-r72995, vendor/llvm/llvm-r72995 |
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bcf11e8d |
| 05-Jun-2009 |
Robert Watson <rwatson@FreeBSD.org> |
Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC and used in a large number of files, but also because an increasing number of incorrect uses of MAC calls were sneaking in du
Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERIC and used in a large number of files, but also because an increasing number of incorrect uses of MAC calls were sneaking in due to copy-and-paste of MAC-aware code without the associated opt_mac.h include.
Discussed with: pjd
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Revision tags: vendor/clang/clang-r72805, vendor/llvm/llvm-r72805, vendor/clang/clang-r72770, vendor/llvm/llvm-r72770, vendor/clang/clang-r72732, vendor/llvm/llvm-r72732, vendor/acpica/20090521, vendor/acpica/20070320resync, vendor/bind9/9.6.1rc1, vendor/netcat/4.5, vendor/tzcode/tzcode2009h, vendor/tzdata/tzdata2009h, vendor/ee/1.5.0, vendor/ee/1.4.7, vendor/ee/1.4.6, vendor/ee/1.4.5a, vendor/ee/1.4.4, vendor/ee/1.4.3, vendor/ee/1.4.2, vendor/top/3.8b1, vendor/tzcode/tzcode2009e, vendor/file/5.03, vendor/less/v429, vendor/binutils/2.15-r191844-obrien, vendor/file/5.00, release/7.2.0_cvs, release/7.2.0, vendor/tzdata/tzdata2009g, vendor/openbsm/1.1, vendor/tzdata/tzdata2009f, vendor/tzdata/tzdata2009e, vendor/tzdata/tzdata2009d, vendor/bind9/9.4.3-P2, vendor/libpcap/1.0.0, vendor/tcpdump/4.0.0, vendor/tzdata/tzdata2009c, vendor/openbsm/1.1-BETA-1, vendor/wpa/0.6.8, vendor/openssh/5.2p1, vendor/tzdata/tzdata2009b, vendor/gdtoa/20081205, vendor/tzdata/tzdata2009a, vendor/wpa_supplicant/0.5.11, vendor/wpa_supplicant/0.5.10, vendor/openbsm/1.1-ALPHA-5, vendor/bind9/9.3.6-P1, vendor/bind9/9.4.3-P1, vendor/file/4.26, release/7.1.0_cvs, release/7.1.0, vendor/openbsm/1.1-ALPHA-4, vendor/bind9/9.4.3, vendor/resolver/9.4.3 |
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6fe00c78 |
| 13-Dec-2008 |
Joseph Koshy <jkoshy@FreeBSD.org> |
- Bug fix: prevent a thread from migrating between CPUs between the time it is marked for user space callchain capture in the NMI handler and the time the callchain capture callback runs.
- Impr
- Bug fix: prevent a thread from migrating between CPUs between the time it is marked for user space callchain capture in the NMI handler and the time the callchain capture callback runs.
- Improve code and control flow clarity by invoking hwpmc(4)'s user space callchain capture callback directly from low-level code.
Reviewed by: jhb (kern/subr_trap.c) Testing (various patch revisions): gnn, Fabien Thomas <fabien dot thomas at netasq dot com>, Artem Belevich <artemb at gmail dot com>
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Revision tags: vendor/pf-sys/4.4, vendor/pf-sys/4.3, vendor/pf-sys/4.2, vendor/pf/4.4, vendor/pf/4.3, vendor/pf/4.2, release/6.4.0_cvs, release/6.4.0, vendor/openbsm/1.1-ALPHA-2, vendor/ncurses/5.7-20081102, vendor/tzdata/tzdata2008i |
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50d6e424 |
| 19-Oct-2008 |
Kip Macy <kmacy@FreeBSD.org> |
- Forward port flush of page table updates on context switch or userret - Forward port vfork XEN hack
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Revision tags: vendor/tzdata/tzdata2008h, vendor/tzdata/tzdata2008g, vendor/netcat/4.4, vendor/openssl/0.9.8i, vendor/tzdata/tzdata2008f, vendor/gdtoa/20080831, vendor/bind9/9.3.5-P2, vendor/bind9/9.4.2-P2, vendor/sendmail/8.14.3, vendor/ath/0.10.5.10, vendor/ntp/4.2.4p5, vendor/tzdata/tzdata2008e, vendor/tzdata/tzdata2008d, vendor/tzdata/tzdata2008c, vendor/pf-sys/4.1.001, vendor/openssh/5.1p1, vendor/openssh/5.0p1, vendor/openssh/4.9p1, vendor/openssh/4.7p1, vendor/openssh/4.6p1, vendor/bind9/9.3.5-P1, vendor/bind9/9.3.5, vendor/bind9/9.4.2-P1, vendor/misc-GNU/cpio/2.8, vendor/binutils/2.15.20040523, vendor/opensolaris/20080410, vendor/ncurses/5.6-20080503, vendor/expat/2.0.1, vendor/com_err/1.1.0, vendor/heimdal/1.1.0, vendor/opensolaris/20080410a, vendor/gcc/trunk_20080418-SVN134423, vendor/netcat/4.3 |
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8df78c41 |
| 17-Apr-2008 |
Jeff Roberson <jeff@FreeBSD.org> |
- Make SCHED_STATS more generic by adding a wrapper to create the variables and sysctl nodes. - In reset walk the children of kern_sched_stats and reset the counters via the oid_arg1 pointer.
- Make SCHED_STATS more generic by adding a wrapper to create the variables and sysctl nodes. - In reset walk the children of kern_sched_stats and reset the counters via the oid_arg1 pointer. This allows us to add arbitrary counters to the tree and still reset them properly. - Define a set of switch types to be passed with flags to mi_switch(). These types are named SWT_*. These types correspond to SCHED_STATS counters and are automatically handled in this way. - Make the new SWT_ types more specific than the older switch stats. There are now stats for idle switches, remote idle wakeups, remote preemption ithreads idling, etc. - Add switch statistics for ULE's pickcpu algorithm. These stats include how much migration there is, how often affinity was successful, how often threads were migrated to the local cpu on wakeup, etc.
Sponsored by: Nokia
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Revision tags: vendor/tzdata/tzdata2008b |
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b7edba77 |
| 21-Mar-2008 |
Jeff Roberson <jeff@FreeBSD.org> |
- Add a new td flag TDF_NEEDSUSPCHK that is set whenever a thread needs to enter thread_suspend_check(). - Set TDF_ASTPENDING along with TDF_NEEDSUSPCHK so we can move the thread_suspend_check
- Add a new td flag TDF_NEEDSUSPCHK that is set whenever a thread needs to enter thread_suspend_check(). - Set TDF_ASTPENDING along with TDF_NEEDSUSPCHK so we can move the thread_suspend_check() to ast() rather than userret(). - Check TDF_NEEDSUSPCHK in the sleepq_catch_signals() optimization so that we don't miss a suspend request. If this is set use the expensive signal path. - Set NEEDSUSPCHK when creating a new thread in thr in case the creating thread is due to be suspended as well but has not yet.
Reviewed by: davidxu (Authored original patch)
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Revision tags: vendor/bzip2/1.0.5, vendor/misc-GNU/cvs/1.11-20080310, vendor/tcsh/6.15b |
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6617724c |
| 12-Mar-2008 |
Jeff Roberson <jeff@FreeBSD.org> |
Remove kernel support for M:N threading.
While the KSE project was quite successful in bringing threading to FreeBSD, the M:N approach taken by the kse library was never developed to its full potent
Remove kernel support for M:N threading.
While the KSE project was quite successful in bringing threading to FreeBSD, the M:N approach taken by the kse library was never developed to its full potential. Backwards compatibility will be provided via libmap.conf for dynamically linked binaries and static binaries will be broken.
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Revision tags: vendor/tzdata/tzdata2008a, vendor/bsnmp/syrinx_20080307_bugfix, release/7.0.0_cvs, release/7.0.0, vendor/ncurses/5.6-20080209, vendor/file/4.23-r1.46, vendor/binutils/2.15.cvsrev_1_51, release/6.3.0_cvs, release/6.3.0, vendor/file/4.23, vendor/misc-GNU/cvs/1.11.22, vendor/tzdata/tzdata2007k, vendor/ncurses/5.6-20071222, vendor/openpam/HYDRANGEA |
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d07f36b0 |
| 07-Dec-2007 |
Joseph Koshy <jkoshy@FreeBSD.org> |
Kernel and hwpmc(4) support for callchain capture.
Sponsored by: FreeBSD Foundation and Google Inc.
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Revision tags: vendor/amd/6.1.5, vendor/tzdata/tzdata2007j, vendor/resolver/9.4.2, vendor/bind9/9.4.2, vendor/less/v416, vendor/less/v415 |
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e01eafef |
| 14-Nov-2007 |
Julian Elischer <julian@FreeBSD.org> |
A bunch more files that should probably print out a thread name instead of a process name.
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Revision tags: vendor/libreadline/5.2p3_p7, vendor/sendmail/8.14.2, vendor/tzdata/tzdata2007i, vendor/openbsm/1.0, vendor/one-true-awk/20071023, vendor/ipfilter/4.1.28, vendor/ipfilter-sys/4-1-28, vendor/openssl/0.9.8-20071018, vendor/tcpdump/3.9.8, vendor/libpcap/0.9.8, vendor/tcsh/6.15a, vendor/less/v409, vendor/tzdata/tzdata2007h, vendor/less/v408 |
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b61ce5b0 |
| 17-Sep-2007 |
Jeff Roberson <jeff@FreeBSD.org> |
- Move all of the PS_ flags into either p_flag or td_flags. - p_sflag was mostly protected by PROC_LOCK rather than the PROC_SLOCK or previously the sched_lock. These bugs have existed for some
- Move all of the PS_ flags into either p_flag or td_flags. - p_sflag was mostly protected by PROC_LOCK rather than the PROC_SLOCK or previously the sched_lock. These bugs have existed for some time. - Allow swapout to try each thread in a process individually and then swapin the whole process if any of these fail. This allows us to move most scheduler related swap flags into td_flags. - Keep ki_sflag for backwards compat but change all in source tools to use the new and more correct location of P_INMEM.
Reported by: pho Reviewed by: attilio, kib Approved by: re (kensmith)
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Revision tags: vendor/tzdata/tzdata2007g, vendor/gcc/4.2.1-20070718-SVN126787, vendor/bind9/9.4.1p1, vendor/openbsm/1.0-ALPHA-15, vendor/wpa_supplicant/0.5.8, vendor/hostapd/0.5.8, vendor/pf/4.1, vendor/pf-sys/4.1, vendor/less/v406, vendor/misc-GNU/diff/2.8.7 |
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3036ab79 |
| 12-Jun-2007 |
Jeff Roberson <jeff@FreeBSD.org> |
- Include opt_sched.h for SCHED_STATS.
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Revision tags: vendor/bind9/9.4.1, vendor/one-true-awk/20070501 |
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982d11f8 |
| 05-Jun-2007 |
Jeff Roberson <jeff@FreeBSD.org> |
Commit 14/14 of sched_lock decomposition. - Use thread_lock() rather than sched_lock for per-thread scheduling sychronization. - Use the per-process spinlock rather than the sched_lock for per-p
Commit 14/14 of sched_lock decomposition. - Use thread_lock() rather than sched_lock for per-thread scheduling sychronization. - Use the per-process spinlock rather than the sched_lock for per-process scheduling synchronization.
Tested by: kris, current@ Tested on: i386, amd64, ULE, 4BSD, libthr, libkse, PREEMPTION, etc. Discussed with: kris, attilio, kmacy, jhb, julian, bde (small parts each)
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b4b70819 |
| 04-Jun-2007 |
Attilio Rao <attilio@FreeBSD.org> |
Do proper "locking" for missing vmmeters part. Now, we assume no more sched_lock protection for some of them and use the distribuited loads method for vmmeter (distribuited through CPUs).
Reviewed b
Do proper "locking" for missing vmmeters part. Now, we assume no more sched_lock protection for some of them and use the distribuited loads method for vmmeter (distribuited through CPUs).
Reviewed by: alc, bde Approved by: jeff (mentor)
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