pointed this out a while ago, and I'm just now getting back to it. It
obsoletes one of ru's changes, but since oldcard.4 is so much better,
that doesn't matter.
Submitted by: ru
time a character is written. Use this at boot time to reject the
existing buffer contents if they are corrupt. This fixes a problem
seen on some hardware (especially laptops) where the message buffer
gets partially corrupted during a short power cycle or reset, but
the msgbuf structure is left intact so it gets reused, resulting
in random junk and control characters appearing in dmesg and
/var/log/messages.
PR: kern/28497
new one, and do not fall back to the RO fd. There was a bug here
in that the RO fd was never closed, if the RDRW open succeeded, but
this code is bogus anyway, and it breaks newfs of floppies, at least
for me, due to "Device busy." Anything that wants to fall back is
doing something significantly odd that it should have some more complex
code on its end.
as this can result in a NULL pointer deference when parsing the
flags later. This change fixes "pkg_add -r" on 5.0-CURRENT for
me; not quite clear how the problem was introduced.
the vendor is only included in the long name currently, reducing
verbosity when modules are registered and unregistered.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
Quote from kern/37573:
There is an obvious race in netinet/ip_dummynet.c:config_pipe().
Interrupts are not blocked when changing the params of an
existing pipe. The specific crash observed:
... -> config_pipe -> set_fs_parms -> config_red
malloc a new w_q_lookup table but take an interrupt before
intializing it, interrupt handler does:
... -> dummynet_io -> red_drops
red_drops dereferences the uninitialized (zeroed) w_q_lookup
table.
o Flush accumulated credits for idle pipes.
o Flush accumulated credits when change pipe characteristics.
o Change dn_flow_queue.numbytes type to unsigned long.
Overlapping dn_flow_queue->numbytes in ready_event() leads to
numbytes becomes negative and SET_TICKS() macro returns a very
big value. heap_insert() overlaps dn_key again and inserts a
queue to a ready heap with a sched_time points to the past.
That leads to an "infinity" loop.
PR: kern/33234, kern/37573, misc/42459, kern/43133,
kern/44045, kern/48099
Submitted by: Mike Hibler <mike@cs.utah.edu> (kern/37573)
MFC after: 6 weeks
pages which represent actual physical memory we must strip off the fake
page in order to allow illegal aliases to be detected. Otherwise we map
uncacheable in the virtual and physical caches and set the side effect bit,
as is required for mapping device memory.
This fixes gstat on sparc64, which wants to mmap kernel memory through a
character device.
signal never affects su directly, some shells changes its pgrp at running
or suspended time, so a broadcast SIGTSTP from child will mess up su's job
control.
Discussed with: bde
