- Revert del_mlist() to its pre-tirpc prototype. Unlike NetBSD's version,
ours lets the caller generate any syslog() messages, so that it
can include the service name in the message.
- Initialise a few local variables to clarify the logic and avoid some
compiler warnings.
- Remove a few unused functions and local variables, and fix some
whitespace issues.
- Reinstate the logic for avoiding duplicate host entries that got
removed accidentally in revision 1.41 (added in r1.5). This bit
was submitted in a slightly different form by Thomas Quinot.
Submitted by: Martin Blapp <mb@imp.ch>,
Thomas Quinot <quinot@inf.enst.fr>
PR: bin/26148
in the TCP_COMPAT_42 case (e.g. choosing '1' as the initial sequence
number at boot-time, instead of randomizing it). TCP_COMPAT_42 is the
repository for old security holes, too :-)
and __i386__ are defined rather than if SMP and BETTER_CLOCK are defined.
The removal of BETTER_CLOCK would have broken this except that kern_clock.c
doesn't include <machine/smptests.h>, so it doesn't see the definition of
BETTER_CLOCK, and forward_*clock aren't called, even on 4.x. This seems to
fix the problem where a n-way SMP system would see 100 * n clk interrupts
and 128 * n rtc interrupts.
and AS4100s into single user mode. This work was done jointly by jhb and
myself, and builds on dfr's earlier work.
smp_init_secondary() / smp_start_secondary()
- use the uniq val to pass the globalp (me)
- fancy footwork to take any pending machine checks (me)
- doing things the FreeBSD way and getting the per-cpu idleproc created
correctly, and synchronizing the startup of secondaries (jhb)
mp_start()
- better recognition of available cpus (jhb)
smp_rendezvous()
- if smp hasn't started, only run the rendezvous function on the current
cpu. Sleuthing and (prior) incorrect fix by me, correct fix by jhb
smp_handle_ipi()
- more verbose handling of console messages (jhb)
- grab sched lock around setting PS_ASTPENDING (jhb)
forward_*clock()
- commented out. Joint decision by dfr, jhb and myself
General synchronization improvements (more mb()s, etc) (jhb)
Printf cleanups (joint)
Whitespace cleanups (jhb)
- don't do the stack overflow sanity check on MP systems -- p->p_addr
will be malloc'ed memory (not K0SEG) and the check will fail.
- don't ignore clock interrupts on secondaries. Alphas apparently
roundrobin clock interrupts to all cpus, so we're going to take clock
interrupts on all CPUS and not forward them.
- use the unique value to save the per-cpu globalp struct like the
comment says
- don't lower the ipl to ALPHA_PSL_IPL_HIGH: we may have a pending machine
check to take and we're not prepared for that yet, as we haven't setup
our interrupt entry points. (this may only happen on sable/lynx)
- indicate the fact that the working version of smp_init_secondary() doesn't
return (this is tied up in other changes and hasn't yet been committed).
group file. Because of the way the group sorting works while printing
out the new file it's not possible at this time to restore comments
in other locations, but at least they won't just disappear altogether.
VOP_BWRITE() was a hack which made it possible for NFS client
side to use struct buf with non-bio backing.
This patch takes a more general approach and adds a bp->b_op
vector where more methods can be added.
The success of this patch depends on bp->b_op being initialized
all relevant places for some value of "relevant" which is not
easy to determine. For now the buffers have grown a b_magic
element which will make such issues a tiny bit easier to debug.
arguments where the format string is obtained from user data, or
otherwise difficult to verify statically.
Example usage:
printf(fmtcheck(user_format, standard_format), arg1, arg2);
checks the format string user_format for consistency (same number/order/
type of format operators) with standard_format. If they differ,
standard_format is used instead to avoid potential crashes or security
violations.
Obtained from: NetBSD
Reviewed by: -arch
sized blocks. To enable this option, use: `sysctl -w debug.bigcgs=1'.
Add debugging option to disable background writes of cylinder
groups. To enable this option, use: `sysctl -w debug.dobkgrdwrite=0'.
These debugging options should be tried on systems that are panicing
with corrupted cylinder group maps to see if it makes the problem
go away. The set of panics in question are:
ffs_clusteralloc: map mismatch
ffs_nodealloccg: map corrupted
ffs_nodealloccg: block not in map
ffs_alloccg: map corrupted
ffs_alloccg: block not in map
ffs_alloccgblk: cyl groups corrupted
ffs_alloccgblk: can't find blk in cyl
ffs_checkblk: partially free fragment
The following panics are less likely to be related to this problem,
but might be helped by these debugging options:
ffs_valloc: dup alloc
ffs_blkfree: freeing free block
ffs_blkfree: freeing free frag
ffs_vfree: freeing free inode
If you try these options, please report whether they helped reduce your
bitmap corruption panics to Kirk McKusick at <mckusick@mckusick.com>
and to Matt Dillon <dillon@earth.backplane.com>.
