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* Remove redundant include.Pawel Jakub Dawidek2012-06-101-1/+0
| | | | | | | MFC after: 1 month Notes: svn path=/head/; revision=236859
* Include the associated wait channel message for context switch ktraceJohn Baldwin2012-04-201-2/+2
| | | | | | | | | | records. kdump supports both the old and new messages. Submitted by: Andrey Zonov andrey zonov org MFC after: 1 week Notes: svn path=/head/; revision=234494
* Add software PMC support.Fabien Thomas2012-03-281-0/+10
| | | | | | | | | | | | | | | | New kernel events can be added at various location for sampling or counting. This will for example allow easy system profiling whatever the processor is with known tools like pmcstat(8). Simultaneous usage of software PMC and hardware PMC is possible, for example looking at the lock acquire failure, page fault while sampling on instructions. Sponsored by: NETASQ MFC after: 1 month Notes: svn path=/head/; revision=233628
* Assert that exiting process does not return to usermode.Konstantin Belousov2011-10-031-0/+2
| | | | | | | | Reviewed by: avg, jhb MFC after: 1 week Notes: svn path=/head/; revision=225942
* In order to maximize the re-usability of kernel code in user space thisKip Macy2011-09-161-2/+2
| | | | | | | | | | | | | | | | patch modifies makesyscalls.sh to prefix all of the non-compatibility calls (e.g. not linux_, freebsd32_) with sys_ and updates the kernel entry points and all places in the code that use them. It also fixes an additional name space collision between the kernel function psignal and the libc function of the same name by renaming the kernel psignal kern_psignal(). By introducing this change now we will ease future MFCs that change syscalls. Reviewed by: rwatson Approved by: re (bz) Notes: svn path=/head/; revision=225617
* Inline the syscallenter() and syscallret(). This reduces the time measuredKonstantin Belousov2011-09-111-162/+0
| | | | | | | | | | | by the syscall entry speed microbenchmarks by ~10% on amd64. Submitted by: jhb Approved by: re (bz) MFC after: 2 weeks Notes: svn path=/head/; revision=225474
* We may split today's CAPABILITIES into CAPABILITY_MODE (which hasJonathan Anderson2011-06-291-2/+2
| | | | | | | | | | | | | | | | to do with global namespaces) and CAPABILITIES (which has to do with constraining file descriptors). Just in case, and because it's a better name anyway, let's move CAPABILITIES out of the way. Also, change opt_capabilities.h to opt_capsicum.h; for now, this will only hold CAPABILITY_MODE, but it will probably also hold the new CAPABILITIES (implying constrained file descriptors) in the future. Approved by: rwatson Sponsored by: Google UK Ltd Notes: svn path=/head/; revision=223668
* Continue introducing Capsicum capability mode support:Robert Watson2011-03-011-0/+15
| | | | | | | | | | | | | | If a system call wasn't listed in capabilities.conf, return ECAPMODE at syscall entry. Reviewed by: anderson Discussed with: benl, kris, pjd Sponsored by: Google, Inc. Obtained from: Capsicum Project MFC after: 3 months Notes: svn path=/head/; revision=219133
* Mfp4 CH=177256:Bjoern A. Zeeb2011-02-141-0/+11
| | | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=218688
* Allow debugger to specify that children of the traced process should beKonstantin Belousov2011-01-251-2/+2
| | | | | | | | | | | automatically traced. Extend the ptrace(PL_LWPINFO) to report that child just forked. Reviewed by: davidxu, jhb MFC after: 2 weeks Notes: svn path=/head/; revision=217819
* Remove extra braces for style(9) (found while cleaning up an old work tree).Ed Maste2010-09-281-2/+1
| | | | Notes: svn path=/head/; revision=213236
* Call the systrace_probe_func() when the error value.Rui Paulo2010-08-221-2/+2
| | | | | | | Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=211617
* Retire td_syscalls now that it is no longer needed.John Baldwin2010-07-151-1/+0
| | | | Notes: svn path=/head/; revision=210138
* Obey sv_syscallnames bounds in syscallname().Konstantin Belousov2010-07-041-2/+4
| | | | | | | Reported and tested by: pho Notes: svn path=/head/; revision=209697
* Move prototypes for kern_sigtimedwait() and kern_sigprocmask() toJohn Baldwin2010-06-301-0/+1
| | | | | | | <sys/syscallsubr.h> where all other kern_<syscall> prototypes live. Notes: svn path=/head/; revision=209613
* Count number of threads that enter and leave dynamically registeredKonstantin Belousov2010-06-281-0/+4
| | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=209579
* Remove the support for int13 FPU exception reporting on i386. It isKonstantin Belousov2010-06-231-21/+0
| | | | | | | | | | | | 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) Notes: svn path=/head/; revision=209461
* Make DTrace syscall provider work again by including opt_kdtrace.h here.Rui Paulo2010-06-171-0/+1
| | | | Notes: svn path=/head/; revision=209258
* Allow to use syscallname(9) outside subr_trap.c.Konstantin Belousov2010-05-261-2/+1
| | | | | | | MFC after: 1 month Notes: svn path=/head/; revision=208566
* Reorganize syscall entry and leave handling.Konstantin Belousov2010-05-231-0/+162
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=208453
* Current pselect(3) is implemented in usermode and thus vulnerable toKonstantin Belousov2009-10-271-0/+5
| | | | | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=198508
* Currently, when signal is delivered to the process and there is a threadKonstantin Belousov2009-10-111-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=197963
* Add new msleep(9) flag PBDY that shall be specified together withKonstantin Belousov2009-07-141-1/+1
| | | | | | | | | | | | | | | 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) Notes: svn path=/head/; revision=195702
* Move "options MAC" from opt_mac.h to opt_global.h, as it's now in GENERICRobert Watson2009-06-051-1/+0
| | | | | | | | | | | 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 Notes: svn path=/head/; revision=193511
* - Bug fix: prevent a thread from migrating between CPUs between theJoseph Koshy2008-12-131-8/+0
| | | | | | | | | | | | | | | | 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> Notes: svn path=/head/; revision=186037
* - Forward port flush of page table updates on context switch or userretKip Macy2008-10-191-0/+9
| | | | | | | - Forward port vfork XEN hack Notes: svn path=/head/; revision=184042
* - Make SCHED_STATS more generic by adding a wrapper to create theJeff Roberson2008-04-171-2/+1
| | | | | | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=178272
* - Add a new td flag TDF_NEEDSUSPCHK that is set whenever a thread needsJeff Roberson2008-03-211-17/+11
| | | | | | | | | | | | | | | | 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) Notes: svn path=/head/; revision=177471
* Remove kernel support for M:N threading.Jeff Roberson2008-03-121-23/+1
| | | | | | | | | | | 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. Notes: svn path=/head/; revision=177091
* Kernel and hwpmc(4) support for callchain capture.Joseph Koshy2007-12-071-0/+13
| | | | | | | Sponsored by: FreeBSD Foundation and Google Inc. Notes: svn path=/head/; revision=174395
* A bunch more files that should probably print out a thread nameJulian Elischer2007-11-141-1/+1
| | | | | | | instead of a process name. Notes: svn path=/head/; revision=173601
* - Move all of the PS_ flags into either p_flag or td_flags.Jeff Roberson2007-09-171-16/+7
| | | | | | | | | | | | | | | | | - 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) Notes: svn path=/head/; revision=172207
* - Include opt_sched.h for SCHED_STATS.Jeff Roberson2007-06-121-0/+1
| | | | Notes: svn path=/head/; revision=170640
* Commit 14/14 of sched_lock decomposition.Jeff Roberson2007-06-051-8/+11
| | | | | | | | | | | | | | - 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) Notes: svn path=/head/; revision=170307
* Do proper "locking" for missing vmmeters part.Attilio Rao2007-06-041-1/+1
| | | | | | | | | | | 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) Notes: svn path=/head/; revision=170292
* - Move rusage from being per-process in struct pstats to per-thread inJeff Roberson2007-06-011-18/+2
| | | | | | | | | | | | | | | | | | | | | | td_ru. This removes the requirement for per-process synchronization in statclock() and mi_switch(). This was previously supported by sched_lock which is going away. All modifications to rusage are now done in the context of the owning thread. reads proceed without locks. - Aggregate exiting threads rusage in thread_exit() such that the exiting thread's rusage is not lost. - Provide a new routine, rufetch() to fetch an aggregate of all rusage structures from all threads in a process. This routine must be used in any place requiring a rusage from a process prior to it's exit. The exited process's rusage is still available via p_ru. - Aggregate tick statistics only on demand via rufetch() or when a thread exits. Tick statistics are kept in the thread and protected by sched_lock until it exits. Initial patch by: attilio Reviewed by: attilio, bde (some objections), arch (mostly silent) Notes: svn path=/head/; revision=170174
* Revert VMCNT_* operations introduction.Attilio Rao2007-05-311-1/+1
| | | | | | | | | | | Probabilly, a general approach is not the better solution here, so we should solve the sched_lock protection problems separately. Requested by: alc Approved by: jeff (mentor) Notes: svn path=/head/; revision=170170
* - define and use VMCNT_{GET,SET,ADD,SUB,PTR} macros for manipulatingJeff Roberson2007-05-181-1/+1
| | | | | | | | | | | vmcnts. This can be used to abstract away pcpu details but also changes to use atomics for all counters now. This means sched lock is no longer responsible for protecting counts in the switch routines. Contributed by: Attilio Rao <attilio@FreeBSD.org> Notes: svn path=/head/; revision=169667
* Remove 'MPSAFE' annotations from the comments above most system calls: allRobert Watson2007-03-041-4/+2
| | | | | | | | | | | system calls now enter without Giant held, and then in some cases, acquire Giant explicitly. Remove a number of other MPSAFE annotations in the credential code and tweak one or two other adjacent comments. Notes: svn path=/head/; revision=167211
* Threading cleanup.. part 2 of several.Julian Elischer2006-12-061-11/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Make part of John Birrell's KSE patch permanent.. Specifically, remove: Any reference of the ksegrp structure. This feature was never fully utilised and made things overly complicated. All code in the scheduler that tried to make threaded programs fair to unthreaded programs. Libpthread processes will already do this to some extent and libthr processes already disable it. Also: Since this makes such a big change to the scheduler(s), take the opportunity to rename some structures and elements that had to be moved anyhow. This makes the code a lot more readable. The ULE scheduler compiles again but I have no idea if it works. The 4bsd scheduler still reqires a little cleaning and some functions that now do ALMOST nothing will go away, but I thought I'd do that as a separate commit. Tested by David Xu, and Dan Eischen using libthr and libpthread. Notes: svn path=/head/; revision=164936
* Make KSE a kernel option, turned on by default in all GENERICJohn Birrell2006-10-261-0/+12
| | | | | | | | | | kernel configs except sun4v (which doesn't process signals properly with KSE). Reviewed by: davidxu@ Notes: svn path=/head/; revision=163709
* Complete break-out of sys/sys/mac.h into sys/security/mac/mac_framework.hRobert Watson2006-10-221-1/+2
| | | | | | | | | | | | | | | | begun with a repo-copy of mac.h to mac_framework.h. sys/mac.h now contains the userspace and user<->kernel API and definitions, with all in-kernel interfaces moved to mac_framework.h, which is now included across most of the kernel instead. This change is the first step in a larger cleanup and sweep of MAC Framework interfaces in the kernel, and will not be MFC'd. Obtained from: TrustedBSD Project Sponsored by: SPARTA Notes: svn path=/head/; revision=163606
* kern_intr.c:Bruce Evans2006-10-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | - Count (scheduling of) software interrupts (SWIs) as SWIs, not as hardware interrupts. - Don't count (scheduling of) delayed SWIs as interrupts at all, since in the delayed case it is expected that there are many more scheduling calls than handling calls. Perhaps all interrupts should be counted only when they are handled, but it is only counts of delayed SWIs that shouldn never be combined with the other counts. subr_trap.c: - Count (handling of) Asynchronous System Traps (ASTs) as traps, not as software interrupts. Before these changes, the counter for SWIs only counted ASTs, and SWIs weren't counted separately, but a subcounter for ASTs alone is less needed than for most other exception sources. 4.4BSD-Lite uses the counters for similar things (actually matching their names) on its main arches (hp300, ..., !i386) where more of the exceptions are in hardware. Notes: svn path=/head/; revision=163474
* Test before modifying p_sflag to avoid unconditionally cache lineDavid Xu2006-02-101-2/+4
| | | | | | | ping-pong on SMP. Notes: svn path=/head/; revision=155504
* Simplify system time accounting for profiling.Poul-Henning Kamp2006-02-081-10/+4
| | | | | | | | | | | | | Rename struct thread's td_sticks to td_pticks, we will need the other name for more appropriately named use shortly. Reduce it from uint64_t to u_int. Clear td_pticks whenever we enter the kernel instead of recording its value as reference for userret(). Use the absolute value of td->pticks in userret() and eliminate third argument. Notes: svn path=/head/; revision=155455
* Modify the way we account for CPU time spent (step 1)Poul-Henning Kamp2006-02-071-1/+1
| | | | | | | | | | | | | | | | | | | Keep track of time spent by the cpu in various contexts in units of "cputicks" and scale to real-world microsec^H^H^H^H^H^H^H^Hclock_t only when somebody wants to inspect the numbers. For now "cputicks" are still derived from the current timecounter and therefore things should by definition remain sensible also on SMP machines. (The main reason for this first milestone commit is to verify that hypothesis.) On slower machines, the avoided multiplications to normalize timestams at every context switch, comes out as a 5-7% better score on the unixbench/context1 microbenchmark. On more modern hardware no change in performance is seen. Notes: svn path=/head/; revision=155444
* Moderate rewrite of kernel ktrace code to attempt to generally improveRobert Watson2005-11-131-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | reliability when tracing fast-moving processes or writing traces to slow file systems by avoiding unbounded queueuing and dropped records. Record loss was previously possible when the global pool of records become depleted as a result of record generation outstripping record commit, which occurred quickly in many common situations. These changes partially restore the 4.x model of committing ktrace records at the point of trace generation (synchronous), but maintain the 5.x deferred record commit behavior (asynchronous) for situations where entering VFS and sleeping is not possible (i.e., in the scheduler). Records are now queued per-process as opposed to globally, with processes responsible for committing records from their own context as required. - Eliminate the ktrace worker thread and global record queue, as they are no longer used. Keep the global free record list, as records are still used. - Add a per-process record queue, which will hold any asynchronously generated records, such as from context switches. This replaces the global queue as the place to submit asynchronous records to. - When a record is committed asynchronously, simply queue it to the process. - When a record is committed synchronously, first drain any pending per-process records in order to maintain ordering as best we can. Currently ordering between competing threads is provided via a global ktrace_sx, but a per-process flag or lock may be desirable in the future. - When a process returns to user space following a system call, trap, signal delivery, etc, flush any pending records. - When a process exits, flush any pending records. - Assert on process tear-down that there are no pending records. - Slightly abstract the notion of being "in ktrace", which is used to prevent the recursive generation of records, as well as generating traces for ktrace events. Future work here might look at changing the set of events marked for synchronous and asynchronous record generation, re-balancing queue depth, timeliness of commit to disk, and so on. I.e., performing a drain every (n) records. MFC after: 1 month Discussed with: jhb Requested by: Marc Olzheim <marcolz at stack dot nl> Notes: svn path=/head/; revision=152376
* 1. Change prototype of trapsignal and sendsig to use ksiginfo_t *, mostDavid Xu2005-10-141-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | changes in MD code are trivial, before this change, trapsignal and sendsig use discrete parameters, now they uses member fields of ksiginfo_t structure. For sendsig, this change allows us to pass POSIX realtime signal value to user code. 2. Remove cpu_thread_siginfo, it is no longer needed because we now always generate ksiginfo_t data and feed it to libpthread. 3. Add p_sigqueue to proc structure to hold shared signals which were blocked by all threads in the proc. 4. Add td_sigqueue to thread structure to hold all signals delivered to thread. 5. i386 and amd64 now return POSIX standard si_code, other arches will be fixed. 6. In this sigqueue implementation, pending signal set is kept as before, an extra siginfo list holds additional siginfo_t data for signals. kernel code uses psignal() still behavior as before, it won't be failed even under memory pressure, only exception is when deleting a signal, we should call sigqueue_delete to remove signal from sigqueue but not SIGDELSET. Current there is no kernel code will deliver a signal with additional data, so kernel should be as stable as before, a ksiginfo can carry more information, for example, allow signal to be delivered but throw away siginfo data if memory is not enough. SIGKILL and SIGSTOP have fast path in sigqueue_add, because they can not be caught or masked. The sigqueue() syscall allows user code to queue a signal to target process, if resource is unavailable, EAGAIN will be returned as specification said. Just before thread exits, signal queue memory will be freed by sigqueue_flush. Current, all signals are allowed to be queued, not only realtime signals. Earlier patch reviewed by: jhb, deischen Tested on: i386, amd64 Notes: svn path=/head/; revision=151316
* - Rev 1.83 of kern_lock.c fixes the td_locks assert, reenable it here.Jeff Roberson2005-03-281-3/+0
| | | | | | | Sponsored by: Isilon Systems, Inc. Notes: svn path=/head/; revision=144223
* - The td_locks check is currently broken with snapshots and possiblyJeff Roberson2005-03-251-0/+3
| | | | | | | | | | some case in unmount. Disable the KASSERT until these problems can be diagnosed. Sponsored by: Isilon Systems, Inc. Notes: svn path=/head/; revision=144101
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