- allocate space for each cpu_info{} in pmap_bootstrap
- remap cpu0's space into the PA currently in CPUINFO_VA
- cpus[] becomes an array of pointers to cpu_info{}, easy to traverse
- only call kernel lock for IPL_VM interrupts (? as implemented on
x86 and sparc64)
- revert a minor part of locore.s:1.241
- in cpu_hatch(), set %sp to near the middle of the interrupt stack.
we only need a %sp until we get to run an MI thread (own idlelwp or
real code)
we still waste one page of space, but this gets SMP much closer to
actually working again.
Export i386/i386/gdt.c:update_descriptor() and use it in x86_set_sdbase(),
as a direct write to the GDT will cause a kernel trap.
Fix PR port-xen/41401.
sdhc_bus_clock() calls mutex_enter().
then in DIAGNOSTIC section, sdhc_bus_clock() calls sdhc_card_detect().
sdhc_card_detect() calls mutex_enter() on the same mutex again.
when LOCKDEBUG is enabled, you get
Mutex error: lockdebug_wantlock: locking against myself
BRDGGFLT and BRDGSFILT bridge controls are only available with BRIDGE_IPF and PFIL_HOOKS defined.
In amd64 GENERIC and XEN kernel configs PFIL_HOOKS is defined but BRIDGE_IPF is not.
When a BRDGGFLT or BRDGSFILT command comes in, then ifd->ifd_cmd is not in range
of bridge_control_table_size. Then bc is not set and is dereferenced
later => BOOM.
for consistency with other functions for reading/writing ASRs.
- move definition of tl() from trap.c to psl.h as same as above.
- define settick() in psl.h and use it in clock.c.
- cosmetic chages in psl.h.
Fix the HPMC exception handler so that, if we're running on a PA-RISC
2.0 machine, we use the 64-bit PIM data structures.
There was also a bug in the HPMC exception handler that stopped output
being written to the console after we'd taken the exception. We need
to make a PDC_IO pdc call to reset I/O.
this fixes the following deadlock.
a thread doing getcleanvnode:
pick a vnode
acqure v_interlock
v_usecount++
call vclean
now, another thread doing cache_lookup:
picks the vnode
vtryget succeed
vn_lock succeed
now in vclean:
set VI_XLOCK (too late to be noticed by the competing thread)
wait on the vnode lock (this might violate locking order)
the use of a flag bit was suggested by Andrew Doran. PR/41374.
and remove bogus casts around ahc_detach().
XXX: There is a pmf_device_deregister(9) call in ahc_detach()
XXX: while there is no pmf_device_register(9) in ahc_attach().
XXX: It looks more pmf(9) stuff is required for cardbus detach.
