Newsgroups: comp.os.linux.development
Subject: Kernel change summary 1.1.19 -> 1.1.20

Load balancing support marked as "experimental" instead of "very experimental"
Sony CDU31A CDROM driver now supports the CDU33A also.
Default IRQ for 3c501 changed from 7 to 5.
scsi_ioctl now only rounds the *buffer* size up.
scsi fixes to scatter/gather on Ultrastor 24F.
core dumping for various executables enabled (but only aout implemented).
More support for multiple execution domains (ELF, a.out, iBCS2, etc.).
Keep track of usage counts for execution domains.
added a flag for vm_growsup or vm_growsdown.
Multiple CD-ROM options added (so you can have different options per CD-ROM).
CD-ROM options for uid and gid added.
SIOCGSTAMP had the wrong value.
Make sure sys_idle is only called when running as the kernel.
Add another system call for the personality.
If anybody but the kernel tries INT, HLT, CLI, or STI, give an SIGILL.

Networking changes notes (probably from Alan Cox, bless his heart)

Changes for the 015 snapshot

o	All read/write buffers are validated at the top level _only_
o	All address structures are moved to and from user mode at the top
	level. Thus you can now issue proto->bind(....) calls and related
	functions such as connect from another kernel task. All thats left
	to fix now is a kernel alloc_socket()/free_socket() and accompanying
	proto->make_kernel(socket)
o	Small fixes to address behaviour caused by the above
o	Max NFS size of 16K bytes
o	Added the apricot driver as a test (#'ed out in config.in)
o	Fixed a missing function definition in net_init.c
o	Added G4KLX ax25_router code
o	Added Niibe's PLIP driver and altered it to support timer
	configuration and IRQ/port setting. Added if_plip.h. Comments and
	feedback appreciated on this (both to Niibe and me).
o	Added AF_MAX/PF_MAX defines
o	Added a note that the DE600 driver also works for a noname 'PE1200'.
o	Network buffer statistics on shift-scroll_lock
o	Fixed a serious race in the device driver code. This was causing odd
	crashes with the Lance drivers, lockups with the ne2000 cards and
	a few other 'bad' goings on. All drivers are effected. See
	README.DEV if porting a driver to this revision.

	If you see entries in your 'free while locked' count, those would
	typically have crashed a pre 1.20 kernel.

o	TCP keeps the timers above 0.2sec round-trip time because of the use of
	delayed ACK's by BSD style kernels.
o	Fixed a small BSD error in the return from datagram socket
	recv/recvfrom() calls when data is truncated. BSD returns the true
	length of the message, Linux returned the amount copied which broke
	programs that did a MSG_PEEK with a small buffer and grew it if need
	be (some of the AV/RTP stuff notably).
o	Added TIOCINQ/OUTQ to AX.25 and IPX.
o	Added driver ioctl() calls to IPX.
o	Corrected the skb->len==0 in the tcp_data reset on shutdown to check
	skb->copied_seq.
o	IP options reflect onto SO_PRIORITY.
o	When a driver is downed its ARP entries are flushed. Should solve
	the occasional crash when taking out a modular driver.
o	Added Donald's multicast reception while promiscuous fix for the
	8390 drivers.
o	Potential ARP TCP-retransmit clear race fixed. Incredibly
	unlikely to occur but no doubt it will 8(.