freebsd-dev/sys/i386
Attilio Rao 02b0a160dc Fix some problems introduced with the last descriptors tables locking
patch:
- Do the correct test for ldt allocation
- Drop dt_lock just before to call kmem_free (since it acquires blocking
  locks inside)
- Solve a deadlock with smp_rendezvous() where other CPU will wait
  undefinitively for dt_lock acquisition.
- Add dt_lock in the WITNESS list of spinlocks

While applying these modifies, change the requirement for user_ldt_free()
making that returning without dt_lock held.

Tested by: marcus, tegge
Reviewed by: tegge
Approved by: jeff (mentor)
2007-05-29 18:55:41 +00:00
..
acpica Handle CPUs with APIC IDs higher than 32 (at least one IBM server uses 2007-05-08 22:01:04 +00:00
bios Tweak the probe/attach order of devices on the x86 nexus devices. 2007-03-20 20:21:44 +00:00
compile
conf Enable fwip and dcons in GENERIC. They seem fairly stable. 2007-05-28 14:38:43 +00:00
cpufreq o introduce a flags 'errata' for HW bugs onto the softc. 2007-01-23 19:20:30 +00:00
i386 Fix some problems introduced with the last descriptors tables locking 2007-05-29 18:55:41 +00:00
ibcs2 Fix a silly bogon that broke ibcs2_rename(). 2007-03-26 15:39:49 +00:00
include Eliminate an unused definition. 2007-05-27 20:34:26 +00:00
isa Minor fixes and tweaks to the x86 interrupt code: 2007-05-08 21:29:14 +00:00
linux Move futex support code from <arch>/support.s into linux compat directory. 2007-05-23 08:33:06 +00:00
pci Revamp the MSI/MSI-X code a bit to achieve two main goals: 2007-05-02 17:50:36 +00:00
svr4 Use svr4_si_{addr,code,errno,signo,trap} in preference to si_{...}. 2005-10-19 14:59:54 +00:00
xbox - Fix typo in #error pragma: compitable -> compatible 2006-08-15 20:10:49 +00:00
Makefile Update entries for building tags. 2007-05-13 18:21:54 +00:00