Makefiles so that we can make changes to it centrally as needed and have
less mess. Fixes the sun2 build that needs rumpvfs after librump after
the latest changes.
- Change the lock on uvm_object, vm_amap and vm_anon to be a RW lock.
- Break v_interlock and vmobjlock apart. v_interlock remains a mutex.
- Do partial PV list locking in the x86 pmap. Others to follow later.
where curcpu() is defined as curlwp->l_cpu:
- mi_switch(): undo the ~2007ish optimisation to unlock curlwp before
calling cpu_switchto(). It's not safe to let other actors mess with the
LWP (in particular l->l_cpu) while it's still context switching. This
removes l->l_ctxswtch.
- Move the LP_RUNNING flag into l->l_flag and rename to LW_RUNNING since
it's now covered by the LWP's lock.
- Ditch lwp_exit_switchaway() and just call mi_switch() instead. Everything
is in cache anyway so it wasn't buying much by trying to avoid saving old
state. This means cpu_switchto() will never be called with prevlwp ==
NULL.
- Remove some KERNEL_LOCK handling which hasn't been needed for years.
KERN_PROC_CWD in sysctl(3)
That is kern.proc.$$.KERN_PROC_CWD (I think - not that it matters here)
The effect is that -lrump now requires -lrumpvfs
This set of changes fixes (I believe) regular dynamic builds,
more might be required for static builds (will be verified soon).
job was never set, and so if the job actually got started before the
cancellation request came in, it would never finish and the cancellation
request would just hang forever.
Should address a spurious automated test failure reported by kre@.
- De-_t'ify all of the structure types.
No functional chage, no ABI change (verified with old rump unit test
before and after new librump.so).
Per Taylor's request.
from librump and hooray for static linking semantics.
Fixes sun2 build issue reported by kre@.
(XXX WTF did this only start failing after the addition of t_threadpool?)
The workqueue worker can take the mutex before the tester tries to take it after
calling workqueue_enqueue. If it happens, the worker calls cv_broadcast before
the tester calls cv_timedwait and the tester will wait until the cv timed out
Take the mutex before calling workqueue_enqueue so that the tester surely calls
cv_timedwait before the worker calls cv_broadcast.
The fix stabilizes the test, t_workqueue/workqueue1.
includes source-code line numbers in the messages, so rather than
hard-coding them in the test, just use a reg-ex to match the text.
Fixes PR bin/52207
martin