of the lists. Speeds up namei on cached vnodes by ~3 percent.
Merge "vrele_thread" into "vdrain_thread" so we have one thread
working on the lrulists. Adapt vfs_drainvnodes() to always wait
for a complete cycle of vdrain_thread().
always equal to "desiredvnodes" and move its definition
from sys/vnode.h to sys/vnode_impl.h.
Extend vfs_drainvnodes() to also wait for deferred vrele to flush
and replace the call to vrele_flush() with a call to vfs_drainvnodes().
Add new entries:
- add support for PT_STEP, PT_GETREGS, PT_SETREGS, PT_GETFPREGS,
PT_SETFPREGS in all ports
- integrate all ptrace(2) features in gdb
- add ptrace(2) NetBSD support in LLDB
Sponsored by <The NetBSD Foundation>
Before commited MP-safe patch, IPv4 test can run in time without
wait_for_disconnected. Currently, wait_for_disconnected is required
because of locking overhead.
CPU Debug Registers won't be exposed as is to userland.
Hardware Watchpoints will be exported to userland dedicated interface
through the ptrace(2) interface.
Sponsored by <The NetBSD Foundation>
CPU Debug Registers won't be exposed as is to userland.
Hardware Watchpoints will be exported to userland dedicated interface
through the ptrace(2) interface.
Sponsored by <The NetBSD Foundation>
This feature was intended to detect stack overflow with CPU Debug Registers
(x86). It was never ported to other ports, neither amd64 and should be
adapted for SMP...
Currently there might be better ways to detect stack overflows like page
mapping protection. Since the number of Debug Registers is restricted
(4 on x86), torn it down completely.
This interface introduced helper functions for Debug Registers, they will
be replaced with the new <x86/dbregs.h> interface.
KSTACK_CHECK_DR0 was disabled by default and won't affect ordinary users.
Sponsored by <The NetBSD Foundation>
This is more opaque and appropriate type, as vaddr_t is meant to be used
for vitual address value. Not all DR on x86 are used to represent virtual
address (DR6 and DR7 are definitely not).
No functional change intended.
Change suggested by <christos>
Sponsored by <The NetBSD Foundation>
