Serious:
- An important timevalfix() in settime[ofday]() was lost.
Not so serious:
- There was a race initializing `delta' in the check for setting the
time backwards.
- The `#ifdef notyet' check for setting the time more than a day forwards
was back to front.
[[I deleted the code, it's useless because of iteration - Peter]]
- The timespec was not checked for validity in clock_settime().
- The timespec was not fully checked for validity in nanotime(). The
check in itimerfix() is too late, since the conversion from a timespec
to a timeval may overflow.
- A garbage timeval was checked in settimeofday() for the (uap->tv == NULL
&& uap->tzp != NULL) case. I added the broken check this some time ago.
Cosmetic:
- The "inadvertantly (sic) sleeping forever" test always failed. hzto()
always returns >= 1.
- The style wasn't very KNFish. (I only changed new code.)
Submitted by: bde
and not the MAC address of the first interface for every IPX address.
This is more inline with the way others like Novell do it.
Originally Submitted by: "Serge A. Babkin" <babkin@hq.icb.chel.su>
Use the MAC address of an interface for the host part of an IPX address
and not the MAC address of the first interface for every IPX address.
This is more inline with the way others like Novell do it.
Mostly Submitted by: "Serge A. Babkin" <babkin@hq.icb.chel.su>
Take out the error messages (the ip icmp equivalent) with #ifdef IPXERRORMSGS.
This is bogus and as far as I could figure out IPX don't have anything like
it. This is a leftover from its XNS heritage. If nobody complains, I will
take it out completely in a few weeks.
Add some more ipxstat statistics counters.
Make ipxprintfs a sysctl variable and off by default.
Add IPX Netbios "routing" support. This is off by default and can be
switched on with a sysctl knob.
General code cleanup to at least use the same style throughout the IPX
code, but also be more style(9) conformant. Also make a lot of functions
static.
If I don't get any complaints I'll bring all of this over to the 2.2 tree
in a few weeks.
accessing files which it shouldn't be able to. This required a better
approximation of VOP_ACCESS for NFSv2 (NFSv3 already has an ACCESS rpc
which is a better solution) and adding a call to VOP_ACCESS from VOP_LOOKUP.
PR: kern/876, kern/2635
Submitted by: David Malone <dwmalone@maths.tcd.ie> (for kern/2635)
in NetBSD. The core of settimeofday() is moved to a seperate static
function settime() which both clock_settime() and settimeofday() call.
Note that I picked up the securelevel > 1 check from NetBSD that prevents
the clock being set backwards in high securelevel mode (this was a hole
that allowed resetting of inode access timestamps to arbitary values)
Obtained from: mostly from NetBSD, but the settime() function is from
our gettimeofday(), some tweaks by me.
(eg: above 0xffc00000). Programs using /dev/kmem are implicitly racing
the kernel, and can get right up high in memory. I've been running
these for some time now, but with printfs. It's saved two panics at
least that I can remember.
md_regs being struct trapframe *. Do a npxsave() if needed and copy the
pcb rather than use the increasingly defunct savectx(). Copy %edi and
%ebp explicitly.
Submitted by: bde
XXX npxproc could be declared in npx.h so the externs with smp fruit
are not needed.
Remove TF_REGP() macro and use. The original reason (address space
problems due to having UPAGES in mapped into user space) is gone. It
looks cleaner without it.
the patches in freefall:/home/dfr/ld.diffs to your ld sources and set
BINFORMAT to aoutkld when linking the kernel.
Library changes and userland utilities will appear in a later commit.
- doesn't break my system.
- NOT yet verified on the affected motherboard.
Stifle an annoying dma_start busy message for the sound cards.
Submitted by: "John S. Dyson" <toor@dyson.iquest.net>
the work is silly, and all this will be a moot point with Justin's CAM
driver, and there are still many ioctls missing -- but i need these
right now. It's silly to need to move the CD-R back to the other
drive in order to determine the session start info when burning multi-
session CD-Rs.
. It makes cd9660 root f/s working again.
. It makes CD9660 a new-style option.
. It adds support to mount an ISO9660 multi-session CD-ROM as the root
filesystem (the last session actually, but that's what is expected
behaviour).
Sigh. The CDIOREADTOCENTRYS did a copyout() of its own, and thus has
been unusable for me for this work. Too bad it didn't simply stuff
the max 100 entries into the struct ioc_read_toc_entry, but relied on
a user supplied data buffer instead. :-( I now had to reinvent the
wheel, and created a CDIOREADTOCENTRY ioctl command that can be used
in a kernel context.
While doing this, i noticed the following bogosities in existing CD-ROM
drivers:
wcd: This driver is likely to be totally bogus when someone tries
two succeeding CDIOREADTOCENTRYS (or now CDIOREADTOCENTRY)
commands with requesting MSF format, since it apparently
operates on an internal table.
scd: This driver apparently returns just a single TOC entry only for
the CDIOREADTOCENTRYS command.
I have only been able to test the CDIOREADTOCENTRY command with the
cd(4) driver. I hereby request the respective maintainers of the
other CD-ROM drivers to verify my code for their driver. When it
comes to merging this CD-ROM multisession stuff into RELENG_2_2 i will
only consider drivers where i've got a confirmation that it actually
works.
simplifies some assumptions and stops some code compile problems.
This should fix the compile hiccup in PR#3491, but smp kernel profiling
isn't likely to be fixed by this.
".." vnode. This is cheaper storagewise than keeping it in the
namecache, and it makes more sense since it's a 1:1 mapping.
2. Also handle the case of "." more intelligently rather than stuff
the namecache with pointless entries.
3. Add two lists to the vnode and hang namecache entries which go from
or to this vnode. When cleaning a vnode, delete all namecache
entries it invalidates.
4. Never reuse namecache enties, malloc new ones when we need it, free
old ones when they die. No longer a hard limit on how many we can
have.
5. Remove the upper limit on namelength of namecache entries.
6. Make a global list for negative namecache entries, limit their number
to a sysctl'able (debug.ncnegfactor) fraction of the total namecache.
Currently the default fraction is 1/16th. (Suggestions for better
default wanted!)
7. Assign v_id correctly in the face of 32bit rollover.
8. Remove the LRU list for namecache entries, not needed. Remove the
#ifdef NCH_STATISTICS stuff, it's not needed either.
9. Use the vnode freelist as a true LRU list, also for namecache accesses.
10. Reuse vnodes more aggresively but also more selectively, if we can't
reuse, malloc a new one. There is no longer a hard limit on their
number, they grow to the point where we don't reuse potentially
usable vnodes. A vnode will not get recycled if still has pages in
core or if it is the source of namecache entries (Yes, this does
indeed work :-) "." and ".." are not namecache entries any longer...)
11. Do not overload the v_id field in namecache entries with whiteout
information, use a char sized flags field instead, so we can get
rid of the vpid and v_id fields from the namecache struct. Since
we're linked to the vnodes and purged when they're cleaned, we don't
have to check the v_id any more.
12. NFS knew about the limitation on name length in the namecache, it
shouldn't and doesn't now.
Bugs:
The namecache statistics no longer includes the hits for ".."
and "." hits.
Performance impact:
Generally in the +/- 0.5% for "normal" workstations, but
I hope this will allow the system to be selftuning over a
bigger range of "special" applications. The case where
RAM is available but unused for cache because we don't have
any vnodes should be gone.
Future work:
Straighten out the namecache statistics.
"desiredvnodes" is still used to (bogusly ?) size hash
tables in the filesystems.
I have still to find a way to safely free unused vnodes
back so their number can shrink when not needed.
There is a few uses of the v_id field left in the filesystems,
scheduled for demolition at a later time.
Maybe a one slot cache for unused namecache entries should
be implemented to decrease the malloc/free frequency.
in savedvp variable and it is used for the argument of
MOUNTTOUNIONMOUNT(). I didn't realize ap->a_vp is modified before
MOUNTTOUNIONMOUNT(), so the change by revision 1.22 is incorrect.
- one-liners all become inline.
- multi-liners become functions.
- FAST_IPI defines go away.
re-worked APICIPI_BANDAID code.
- now refered to as DETECT_DEADLOCK.
- on by default.
the pageout daemon wasn't always being waken up appropriately when the
(cache + free) queues were depleted.
Submitted by: David S. Miller <davem@jenolan.rutgers.edu>
but now that we've widened the scope of the smp work to -current, it might
be an idea to warn new people that might not have read all the docs yet
that the SMP support needs to be activated via a sysctl.
Added [SR]RGBMASKs ioctl for byte swapping.
1.16 4/20/97 Randall Hopper <rhh@ct.picker.com>
Generalized RGBMASK ioctls for general pixel
format setting [SG]ACTPIXFMT, and added query API
to return driver-supported pix fmts GSUPPIXFMT.
1.17 4/21/97 hasty@rah.star-gate.com
Clipping support added.
1.18 4/23/97 Clean up after failed CAP_SINGLEs where bt
interrupt isn't delivered, and fixed fixing
CAP_SINGLEs that for ODD_ONLY fields.
Submitted by: individuals in above log messages.
Added [SR]RGBMASKs ioctl for byte swapping.
1.16 4/20/97 Randall Hopper <rhh@ct.picker.com>
Generalized RGBMASK ioctls for general pixel
format setting [SG]ACTPIXFMT, and added query API
to return driver-supported pix fmts GSUPPIXFMT.
1.17 4/21/97 hasty@rah.star-gate.com
Clipping support added.
1.18 4/23/97 Clean up after failed CAP_SINGLEs where bt
interrupt isn't delivered, and fixed fixing
CAP_SINGLEs that for ODD_ONLY fields.
Submitted by: individuals in above log messages.
opt_smp_invltlb.h
from:
SMPHDRS= opt_smp.h opt_smp_invltlb.h
SMP_INVLTLB is no longer a valid config option, the invalidation of the TLB
via inter-CPU IPIs is now standard when APIC_IO is used.
This code re-numbers PCI busses in the MP table to match PCI semantics
when the MP BIOS fails to do it properly.
Reviewed by: Peter Wemm <peter@spinner.DIALix.COM>
but searching the directory on something else than the default
location.
NB: this comprises an interface change to the mount_cd9660(8)
utility (commit will follow). You need to rebuild both.
I've got similar patches for RELENG_2_2, should i commit them too?
and FNM_LEADING_DIR were specified and the pattern ended with "*".
Example: pattern="src/usr.sbin/w*", string="src/usr.sbin/watch/watch.8,v".
This should match, but did not.
UN_KLOCK flag.
When UN_KLOCK is set, VOP_UNLOCK should keep uppervp locked and clear
UN_ULOCK flag. To do this, when UN_KLOCK is set, (1) union_unlock
clears UN_ULOCK and does not clear UN_KLOCK, (2) union_lock() does not
access uppervp and does not clear UN_KLOCK, and (3) callers of
vput/VOP_UNLOCK should clear UN_KLOCK. For example, vput becomes:
SETKLOCK(union_node);
vput(vnode);
CLEARKLOCK(union_node);
where SETKLOCK macro sets UN_KLOCK and CLEARKLOCK macro clears
UN_KLOCK.
