Import 1.2.5

Makefile

 VERSION = 1
 PATCHLEVEL = 2
-SUBLEVEL = 4
+SUBLEVEL = 5
 
 ARCH = i386
 

README

@@ -124,15 +124,15 @@ COMPILING the kernel:
    floppy. 
 
    If you boot Linux from the hard drive, chances are you use LILO which
-   uses the kernel image as specified in the file /etc/lilo/config.  The
+   uses the kernel image as specified in the file /etc/lilo.conf.  The
    kernel image file is usually /vmlinuz, or /zImage, or /etc/zImage. 
    To use the new kernel, copy the new image over the old one (save a
    backup of the original!).  Then, you MUST RERUN LILO to update the
    loading map!! If you don't, you won't be able to boot the new kernel
    image. 
 
-   Reinstalling LILO is usually a matter of running /etc/lilo/install. 
-   You may wish to edit /etc/lilo/config to specify an entry for your
+   Reinstalling LILO is usually a matter of running /sbin/lilo. 
+   You may wish to edit /etc/lilo.conf to specify an entry for your
    old kernel image (say, /vmlinux.old) in case the new one does not
    work.  See the LILO docs for more information. 
 

drivers/block/ll_rw_blk.c

@@ -169,18 +169,38 @@ static inline struct request * get_request(int n, int dev)
 
 /*
  * wait until a free request in the first N entries is available.
- * NOTE: interrupts must be disabled on the way in, and will still
- *       be disabled on the way out.
  */
-static inline struct request * get_request_wait(int n, int dev)
+static struct request * __get_request_wait(int n, int dev)
 {
 	register struct request *req;
+	struct wait_queue wait = { current, NULL };
 
-	while ((req = get_request(n, dev)) == NULL) {
+	add_wait_queue(&wait_for_request, &wait);
+	for (;;) {
 		unplug_device(MAJOR(dev)+blk_dev);
-		sleep_on(&wait_for_request);
+		current->state = TASK_UNINTERRUPTIBLE;
+		cli();
+		req = get_request(n, dev);
+		sti();
+		if (req)
+			break;
+		schedule();
 	}
+	remove_wait_queue(&wait_for_request, &wait);
+	current->state = TASK_RUNNING;
+	return req;
+}
+
+static inline struct request * get_request_wait(int n, int dev)
+{
+	register struct request *req;
+
+	cli();
+	req = get_request(n, dev);
+	sti();
+	if (req)
 		return req;
+	return __get_request_wait(n, dev);
 }
 
 /* RO fail safe mechanism */
@@ -303,9 +323,7 @@ static void make_request(int major,int rw, struct buffer_head * bh)
  */
 	max_req = (rw == READ) ? NR_REQUEST : ((NR_REQUEST*2)/3);
 
-/* big loop: look for a free request. */
-
-repeat:
+/* look for a free request. */
 	cli();
 
 /* The scsi disk drivers and the IDE driver completely remove the request
@@ -363,23 +381,17 @@ static void make_request(int major,int rw, struct buffer_head * bh)
 
 /* find an unused request. */
 	req = get_request(max_req, bh->b_dev);
+	sti();
 
-/* if no request available: if rw_ahead, forget it; otherwise try again. */
-	if (! req) {
+/* if no request available: if rw_ahead, forget it; otherwise try again blocking.. */
+	if (!req) {
 		if (rw_ahead) {
-			sti();
 			unlock_buffer(bh);
 			return;
 		}
-		unplug_device(major+blk_dev);
-		sleep_on(&wait_for_request);
-		sti();
-		goto repeat;
+		req = __get_request_wait(max_req, bh->b_dev);
 	}
 
-/* we found a request. */
-	sti();
-
 /* fill up the request-info, and add it to the queue */
 	req->cmd = rw;
 	req->errors = 0;
@@ -410,9 +422,7 @@ void ll_rw_page(int rw, int dev, int page, char * buffer)
 		printk("Can't page to read-only device 0x%X\n",dev);
 		return;
 	}
-	cli();
 	req = get_request_wait(NR_REQUEST, dev);
-	sti();
 /* fill up the request-info, and add it to the queue */
 	req->cmd = rw;
 	req->errors = 0;
@@ -533,9 +543,7 @@ void ll_rw_swap_file(int rw, int dev, unsigned int *b, int nb, char *buf)
 
 	for (i=0; i<nb; i++, buf += buffersize)
 	{
-		cli();
 		req = get_request_wait(NR_REQUEST, dev);
-		sti();
 		req->cmd = rw;
 		req->errors = 0;
 		req->sector = (b[i] * buffersize) >> 9;

drivers/char/ChangeLog

+Wed Apr 12 08:06:16 1995  Theodore Y. Ts'o  <tytso@localhost>
+
+	* serial.c (do_serial_hangup, do_softint, check_modem_status,
+		rs_init):  Hangups are now scheduled via a separate tqueue
+		structure in the async_struct structure, tqueue_hangup.
+		This task is pushed on to the tq_schedule queue, so that
+		it is processed syncronously by the scheduler.
+
 Sat Feb 18 12:13:51 1995  Theodore Y. Ts'o  (tytso@rt-11)
 
 	* tty_io.c (disassociate_ctty, tty_open, tty_ioctl): Clear

drivers/char/serial.c

@@ -468,7 +468,8 @@ static _INLINE_ void check_modem_status(struct async_struct *info)
 #ifdef SERIAL_DEBUG_OPEN
 			printk("scheduling hangup...");
 #endif
-			rs_sched_event(info, RS_EVENT_HANGUP);
+			queue_task_irq_off(&info->tqueue_hangup,
+					   &tq_scheduler);
 		}
 	}
 	if (info->flags & ASYNC_CTS_FLOW) {
@@ -722,12 +723,6 @@ static void do_softint(void *private_)
 	if (!tty)
 		return;
 
-	if (clear_bit(RS_EVENT_HANGUP, &info->event)) {
-		tty_hangup(tty);
-		wake_up_interruptible(&info->open_wait);
-		info->flags &= ~(ASYNC_NORMAL_ACTIVE|
-				 ASYNC_CALLOUT_ACTIVE);
-	}
 	if (clear_bit(RS_EVENT_WRITE_WAKEUP, &info->event)) {
 		if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
 		    tty->ldisc.write_wakeup)
@@ -736,6 +731,28 @@ static void do_softint(void *private_)
 	}
 }
 
+/*
+ * This routine is called from the scheduler tqueue when the interrupt
+ * routine has signalled that a hangup has occured.  The path of
+ * hangup processing is:
+ *
+ * 	serial interrupt routine -> (scheduler tqueue) ->
+ * 	do_serial_hangup() -> tty->hangup() -> rs_hangup()
+ * 
+ */
+static void do_serial_hangup(void *private_)
+{
+	struct async_struct	*info = (struct async_struct *) private_;
+	struct tty_struct	*tty;
+	
+	tty = info->tty;
+	if (!tty)
+		return;
+
+	tty_hangup(tty);
+}
+
+
 /*
  * This subroutine is called when the RS_TIMER goes off.  It is used
  * by the serial driver to handle ports that do not have an interrupt
@@ -2615,6 +2632,8 @@ long rs_init(long kmem_start)
 		info->blocked_open = 0;
 		info->tqueue.routine = do_softint;
 		info->tqueue.data = info;
+		info->tqueue_hangup.routine = do_serial_hangup;
+		info->tqueue_hangup.data = info;
 		info->callout_termios =callout_driver.init_termios;
 		info->normal_termios = serial_driver.init_termios;
 		info->open_wait = 0;

drivers/net/lance.c

@@ -913,7 +913,7 @@ lance_rx(struct device *dev)
 			lp->rx_ring[entry].base &= 0x03ffffff;
 		} else {
 			/* Malloc up new buffer, compatible with net-2e. */
-			short pkt_len = lp->rx_ring[entry].msg_length;
+			short pkt_len = (lp->rx_ring[entry].msg_length & 0xfff)-4;
 			struct sk_buff *skb;
 
 			skb = alloc_skb(pkt_len, GFP_ATOMIC);

drivers/net/ne.c

+#define rw_bugfix
 /* ne.c: A general non-shared-memory NS8390 ethernet driver for linux. */
 /*
     Written 1992-94 by Donald Becker.
@@ -375,6 +376,7 @@ ne_block_output(struct device *dev, int count,
 {
     int retries = 0;
     int nic_base = NE_BASE;
+    unsigned long flags;
 
     /* Round the count up for word writes.  Do we need to do this?
        What effect will an odd byte count have on the 8390?
@@ -415,8 +417,13 @@ ne_block_output(struct device *dev, int count,
 	race condition will munge the remote byte count values, and then
 	the ne2k will hang the machine by holding I/O CH RDY because it
 	expects more data. Hopefully fixes the lockups. -- Paul Gortmaker.
+
+	Use save_flags/cli/restore_flags rather than cli/sti to avoid risk
+	of accidentally enabling interrupts which were disabled when we
+	were entered.   Dave Platt <dplatt@3do.com>
     */
 
+    save_flags(flags);
     cli();
     outb_p(count & 0xff, nic_base + EN0_RCNTLO);
     outb_p(count >> 8,   nic_base + EN0_RCNTHI);
@@ -429,7 +436,7 @@ ne_block_output(struct device *dev, int count,
     } else {
 	outsb(NE_BASE + NE_DATAPORT, buf, count);
     }
-    sti();
+    restore_flags(flags);
 
 #ifdef CONFIG_NE_SANITY
     /* This was for the ALPHA version only, but enough people have

drivers/net/wavelan.c

@@ -71,7 +71,7 @@ struct net_local
 
 extern int		wavelan_probe(device *);	/* See Space.c */
 
-static char		*version	= "wavelan.c:v6 22/2/95\n";
+static char		*version	= "wavelan.c:v7 95/4/8\n";
 
 /*
  * Entry point forward declarations.
@@ -508,6 +508,9 @@ wavelan_hardware_reset(device *dev)
 	ac_cfg_t	cfg;
 	ac_ias_t	ias;
 
+	if (wavelan_debug > 0)
+		printk("%s: ->wavelan_hardware_reset(dev=0x%x)\n", dev->name, (unsigned int)dev);
+
 	ioaddr = dev->base_addr;
 	lp = (net_local *)dev->priv;
 
@@ -565,7 +568,12 @@ wavelan_hardware_reset(device *dev)
 	}
 
 	if (i <= 0)
+	{
 		printk("%s: wavelan_hardware_reset(): iscp_busy timeout.\n", dev->name);
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_hardware_reset(): -1\n", dev->name);
+		return -1;
+	}
 
 	for (i = 15; i > 0; i--)
 	{
@@ -578,7 +586,12 @@ wavelan_hardware_reset(device *dev)
 	}
 
 	if (i <= 0)
+	{
 		printk("%s: wavelan_hardware_reset(): status: expected 0x%02x, got 0x%02x.\n", dev->name, SCB_ST_CX | SCB_ST_CNA, scb.scb_status);
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_hardware_reset(): -1\n", dev->name);
+		return -1;
+	}
 
 	wavelan_ack(dev);
 
@@ -588,12 +601,18 @@ wavelan_hardware_reset(device *dev)
 	obram_write(ioaddr, OFFSET_CU, (unsigned char *)&cb, sizeof(cb));
 
 	if (wavelan_synchronous_cmd(dev, "diag()") == -1)
+	{
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_hardware_reset(): -1\n", dev->name);
 		return -1;
+	}
 
 	obram_read(ioaddr, OFFSET_CU, (unsigned char *)&cb, sizeof(cb));
 	if (cb.ac_status & AC_SFLD_FAIL)
 	{
 		printk("%s: wavelan_hardware_reset(): i82586 Self Test failed.\n", dev->name);
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_hardware_reset(): -1\n", dev->name);
 		return -1;
 	}
 
@@ -654,7 +673,12 @@ wavelan_hardware_reset(device *dev)
 	obram_write(ioaddr, OFFSET_CU, (unsigned char *)&cfg, sizeof(cfg));
 
 	if (wavelan_synchronous_cmd(dev, "reset()-configure") == -1)
+	{
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_hardware_reset(): -1\n", dev->name);
+
 		return -1;
+	}
 
 	memset(&ias, 0x00, sizeof(ias));
 	ias.ias_h.ac_command = AC_CFLD_EL | (AC_CFLD_CMD & acmd_ia_setup);
@@ -663,19 +687,24 @@ wavelan_hardware_reset(device *dev)
 	obram_write(ioaddr, OFFSET_CU, (unsigned char *)&ias, sizeof(ias));
 
 	if (wavelan_synchronous_cmd(dev, "reset()-address") == -1)
+	{
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_hardware_reset(): -1\n", dev->name);
+
 		return -1;
+	}
 
 	wavelan_ints_on(dev);
 
 	if (wavelan_debug > 4)
-	{
 		wavelan_scb_show(ioaddr);
-		printk("%s: Initialized WaveLAN.\n", dev->name);
-	}
 
 	wavelan_ru_start(dev);
 	wavelan_cu_start(dev);
 
+	if (wavelan_debug > 0)
+		printk("%s: <-wavelan_hardware_reset(): 0\n", dev->name);
+
 	return 0;
 }
 
@@ -708,6 +737,7 @@ int
 wavelan_probe(device *dev)
 {
 	int			i;
+	int			r;
 	short			base_addr;
 	static unsigned short	iobase[]	=
 	{
@@ -721,10 +751,17 @@ wavelan_probe(device *dev)
 		0x390,
 	};
 
+	if (wavelan_debug > 0)
+		printk("%s: ->wavelan_probe(dev=0x%x (base_addr=0x%x))\n", dev->name, (unsigned int)dev, (unsigned int)dev->base_addr);
+
 #if	STRUCT_CHECK == 1
 	if (wavelan_struct_check() != (char *)0)
 	{
 		printk("%s: structure/compiler botch: \"%s\"\n", dev->name, wavelan_struct_check());
+
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_probe(): ENODEV\n", dev->name);
+
 		return ENODEV;
 	}
 #endif	/* STRUCT_CHECK == 1 */
@@ -732,16 +769,25 @@ wavelan_probe(device *dev)
 	base_addr = dev->base_addr;
 
 	if (base_addr < 0)
+	{
 		/*
 		 * Don't probe at all.
 		 */
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_probe(): ENXIO\n", dev->name);
 		return ENXIO;
+	}
 
 	if (base_addr > 0x100)
+	{
 		/*
 		 * Check a single specified location.
 		 */
-		return wavelan_probe1(dev, base_addr);
+		r = wavelan_probe1(dev, base_addr);
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_probe(): %d\n", dev->name, r);
+		return r;
+	}
 
 	for (i = 0; i < nels(iobase); i++)
 	{
@@ -749,8 +795,15 @@ wavelan_probe(device *dev)
 			continue;
 
 		if (wavelan_probe1(dev, iobase[i]) == 0)
+		{
+			if (wavelan_debug > 0)
+				printk("%s: <-wavelan_probe(): 0\n", dev->name);
 			return 0;
 		}
+	}
+
+	if (wavelan_debug > 0)
+		printk("%s: <-wavelan_probe(): ENODEV\n", dev->name);
 
 	return ENODEV;
 }
@@ -764,6 +817,9 @@ wavelan_probe1(device *dev, unsigned short ioaddr)
 	int		i;
 	net_local	*lp;
 
+	if (wavelan_debug > 0)
+		printk("%s: ->wavelan_probe1(dev=0x%x, ioaddr=0x%x)\n", dev->name, (unsigned int)dev, ioaddr);
+
 	wavelan_reset(ioaddr);
 
 	psa_read(ioaddr, HACR_DEFAULT, 0, (unsigned char *)&psa, sizeof(psa));
@@ -780,13 +836,19 @@ wavelan_probe1(device *dev, unsigned short ioaddr)
 		||
 		psa.psa_univ_mac_addr[2] != SA_ADDR2
 	)
+	{
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_probe1(): ENODEV\n", dev->name);
 		return ENODEV;
+	}
 
 	printk("%s: WaveLAN at %#x,", dev->name, ioaddr);
 
 	if ((irq = wavelan_map_irq(ioaddr, psa.psa_int_req_no)) == -1)
 	{
 		printk(" could not wavelan_map_irq(0x%x, %d).\n", ioaddr, psa.psa_int_req_no);
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_probe1(): EAGAIN\n", dev->name);
 		return EAGAIN;
 	}
 
@@ -871,7 +933,7 @@ wavelan_probe1(device *dev, unsigned short ioaddr)
 
 	printk("\n");
 
-	if (wavelan_debug)
+	if (wavelan_debug > 0)
 		printk(version);
 
 	dev->priv = kmalloc(sizeof(net_local), GFP_KERNEL);
@@ -915,6 +977,9 @@ wavelan_probe1(device *dev, unsigned short ioaddr)
 
 	dev->mtu = WAVELAN_MTU;
 
+	if (wavelan_debug > 0)
+		printk("%s: <-wavelan_probe1(): 0\n", dev->name);
+
 	return 0;
 }
 
@@ -1074,12 +1139,21 @@ wavelan_open(device *dev)
 {
 	unsigned short	ioaddr;
 	net_local	*lp;
+	unsigned long	x;
+	int		r;
+
+	if (wavelan_debug > 0)
+		printk("%s: ->wavelan_open(dev=0x%x)\n", dev->name, (unsigned int)dev);
 
 	ioaddr = dev->base_addr;
 	lp = (net_local *)dev->priv;
 
 	if (dev->irq == 0)
+	{
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_open(): -ENXIO\n", dev->name);
 		return -ENXIO;
+	}
 
 	if
 	(
@@ -1092,23 +1166,35 @@ wavelan_open(device *dev)
 	)
 	{
 		irq2dev_map[dev->irq] = (device *)0;
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_open(): -EAGAIN\n", dev->name);
 		return -EAGAIN;
 	}
 
-	if (wavelan_hardware_reset(dev) == -1)
+	x = wavelan_splhi();
+	if ((r = wavelan_hardware_reset(dev)) != -1)
+	{
+		dev->interrupt = 0;
+		dev->start = 1;
+	}
+	wavelan_splx(x);
+
+	if (r == -1)
 	{
 		free_irq(dev->irq);
 		irq2dev_map[dev->irq] = (device *)0;
+		if (wavelan_debug > 0)
+			printk("%s: <-wavelan_open(): -EAGAIN(2)\n", dev->name);
 		return -EAGAIN;
 	}
 
-	dev->interrupt = 0;
-	dev->start = 1;
-
 #if	defined(MODULE)
 	MOD_INC_USE_COUNT;
 #endif	/* defined(MODULE) */
 
+	if (wavelan_debug > 0)
+		printk("%s: <-wavelan_open(): 0\n", dev->name);
+
 	return 0;
 }
 
@@ -1438,7 +1524,7 @@ wavelan_receive(device *dev)
 			}
 #endif	/* 0 */
 
-			if (wavelan_debug > 0)
+			if (wavelan_debug > 5)
 			{
 				unsigned char	addr[WAVELAN_ADDR_SIZE];
 				unsigned short	ltype;
@@ -1723,14 +1809,14 @@ wavelan_interrupt(int irq, struct pt_regs *regs)
 		 * This will clear it -- ignored for now.
 		 */
 		mmc_read(ioaddr, mmroff(0, mmr_dce_status), &dce_status, sizeof(dce_status));
-		if (wavelan_debug > 4)
+		if (wavelan_debug > 0)
 			printk("%s: warning: wavelan_interrupt(): unexpected mmc interrupt: status 0x%04x.\n", dev->name, dce_status);
 	}
 
 	if ((hasr & HASR_82586_INTR) == 0)
 	{
 		dev->interrupt = 0;
-		if (wavelan_debug > 4)
+		if (wavelan_debug > 0)
 			printk("%s: warning: wavelan_interrupt() but (hasr & HASR_82586_INTR) == 0.\n", dev->name);
 		return;
 	}
@@ -1746,7 +1832,7 @@ wavelan_interrupt(int irq, struct pt_regs *regs)
 
 	set_chan_attn(ioaddr, lp->hacr);
 
-	if (wavelan_debug > 4)
+	if (wavelan_debug > 5)
 		printk("%s: interrupt, status 0x%04x.\n", dev->name, status);
 
 	if ((status & SCB_ST_CX) == SCB_ST_CX)
@@ -1804,6 +1890,9 @@ wavelan_close(device *dev)
 	net_local	*lp;
 	unsigned short	scb_cmd;
 
+	if (wavelan_debug > 0)
+		printk("%s: ->wavelan_close(dev=0x%x)\n", dev->name, (unsigned int)dev);
+
 	ioaddr = dev->base_addr;
 	lp = (net_local *)dev->priv;
 
@@ -1831,6 +1920,9 @@ wavelan_close(device *dev)
 	MOD_DEC_USE_COUNT;
 #endif	/* defined(MODULE) */
 
+	if (wavelan_debug > 0)
+		printk("%s: <-wavelan_close(): 0\n", dev->name);
+
 	return 0;
 }
 
@@ -1856,6 +1948,9 @@ wavelan_set_multicast_list(device *dev, int num_addrs, void *addrs)
 	net_local	*lp;
 	unsigned long	x;
 
+	if (wavelan_debug > 0)
+		printk("%s: ->wavelan_set_multicast_list(dev=0x%x, num_addrs=%d, addrs=0x%x)\n", dev->name, (unsigned int)dev, num_addrs, (unsigned int)addrs);
+
 	lp = (net_local *)dev->priv;
 
 	switch (num_addrs)
@@ -1888,6 +1983,9 @@ wavelan_set_multicast_list(device *dev, int num_addrs, void *addrs)
 		 */
 		break;
 	}
+
+	if (wavelan_debug > 0)
+		printk("%s: <-wavelan_set_multicast_list()\n", dev->name);
 }
 
 /*
@@ -2330,6 +2428,7 @@ wavelan_local_show(device *dev)
  *	Matthew Geier (matthew@cs.usyd.edu.au),
  *	Remo di Giovanni (remo@cs.usyd.edu.au),
  *	Eckhard Grah (grah@wrcs1.urz.uni-wuppertal.de),
+ *	Vipul Gupta (vgupta@cs.binghamton.edu),
  *	Mark Hagan (mhagan@wtcpost.daytonoh.NCR.COM),
  *	Tim Nicholson (tim@cs.usyd.edu.au),
  *	Ian Parkin (ian@cs.usyd.edu.au),

drivers/scsi/Makefile

@@ -86,9 +86,11 @@ SCSI_OBJS := $(SCSI_OBJS) buslogic.o
 SCSI_SRCS := $(SCSI_SRCS) buslogic.c
 endif
 
+SCSI_SRCS := $(SCSI_SRCS) eata_dma.c
 ifdef CONFIG_SCSI_EATA_DMA
 SCSI_OBJS := $(SCSI_OBJS) eata_dma.o
-SCSI_SRCS := $(SCSI_SRCS) eata_dma.c
+else
+SCSI_MODULE_OBJS := $(SCSI_MODULE_OBJS) eata_dma.o
 endif
 
 ifdef CONFIG_SCSI_U14_34F

drivers/scsi/eata_dma.h

@@ -2,7 +2,7 @@
 * Header file for eata_dma.c Linux EATA-DMA SCSI driver *
 * (c) 1993,94,95 Michael Neuffer                        *
 *********************************************************
-* last change: 95/02/13                                 *
+* last change: 95/04/10                                 *
 ********************************************************/
 
 
@@ -11,7 +11,7 @@
 
 #define VER_MAJOR 2
 #define VER_MINOR 3
-#define VER_SUB   "1a"
+#define VER_SUB   "5r"
 
 /************************************************************************
  * Here you can configure your drives that are using a non-standard     *
@@ -61,6 +61,7 @@
 #define DBG_QUEUE	0	/* Trace command queueing. 		*/
 #define DBG_INTR	0       /* Trace interrupt service routine. 	*/
 #define DBG_INTR2	0       /* Trace interrupt service routine. 	*/
+#define DBG_INTR3       0       /* Trace interrupt service routine.     */
 #define DBG_PROC        0       /* Debug proc-fs related statistics     */
 #define DBG_REGISTER    0       /* */
 #define DBG_ABNORM	1	/* Debug abnormal actions (reset, abort)*/
@@ -125,13 +126,15 @@ int eata_release(struct Scsi_Host *);
 
 #define SG_SIZE           64 
 
-#define C_P_L_CURRENT_MAX 10  /* Until this limit in the mm is removed    
+#define C_P_L_CURRENT_MAX 16  /* Until this limit in the mm is removed    
 			       * Kernels < 1.1.86 died horrible deaths
 			       * if you used values >2. The memory management
 			       * since pl1.1.86 seems to cope with up to 10
 			       * queued commands per device. 
+                               * Since 1.2.0 the memory management seems to 
+                               * have no more problems......
 			       */
-#define C_P_L_DIV          4  /* 1 <= C_P_L_DIV <= 8            
+#define C_P_L_DIV          3  /* 1 <= C_P_L_DIV <= 8            
 			       * You can use this parameter to fine-tune
 			       * the driver. Depending on the number of 
 			       * devices and their speed and ability to queue 
@@ -201,6 +204,24 @@ int eata_release(struct Scsi_Host *);
 #define HA_SBUSY    0x80        /* drive busy                */
 #define HA_SDRDY    HA_SSC+HA_SREADY+HA_SDRQ 
 
+#define HA_NO_ERROR      0x00
+#define HA_ERR_SEL_TO    0x01
+#define HA_ERR_CMD_TO    0x02
+#define HA_ERR_RESET     0x03
+#define HA_INIT_POWERUP  0x04
+#define HA_UNX_BUSPHASE  0x05
+#define HA_UNX_BUS_FREE  0x06
+#define HA_BUS_PARITY    0x07
+#define HA_SCSI_HUNG     0x08
+#define HA_UNX_MSGRJCT   0x09
+#define HA_RESET_STUCK   0x0a
+#define HA_RSENSE_FAIL   0x0b
+#define HA_PARITY_ERR    0x0c
+#define HA_CP_ABORT_NA   0x0d
+#define HA_CP_ABORTED    0x0e
+#define HA_CP_RESET_NA   0x0f
+#define HA_CP_RESET      0x10
+
 /**********************************************
  * Message definitions                        *
  **********************************************/

drivers/scsi/scsi.c

@@ -387,7 +387,8 @@ void scan_scsis (struct Scsi_Host * shpnt)
 
 
 	  if(SCpnt->result) {
-	    if ((driver_byte(SCpnt->result)  & DRIVER_SENSE) &&
+	    if (((driver_byte(SCpnt->result) & DRIVER_SENSE) ||
+		 (status_byte(SCpnt->result) & CHECK_CONDITION)) &&
 		((SCpnt->sense_buffer[0] & 0x70) >> 4) == 7) {
 	      if (SCpnt->sense_buffer[2] &0xe0)
 		continue; /* No devices here... */

drivers/scsi/scsi.h

@@ -50,6 +50,7 @@
 #define SEND_DIAGNOSTIC		0x1d
 #define ALLOW_MEDIUM_REMOVAL	0x1e
 
+#define SET_WINDOW              0x24
 #define READ_CAPACITY		0x25
 #define READ_10			0x28
 #define WRITE_10		0x2a
@@ -65,16 +66,26 @@
 #define SYNCHRONIZE_CACHE	0x35
 #define LOCK_UNLOCK_CACHE	0x36
 #define READ_DEFECT_DATA	0x37
+#define MEDIUM_SCAN             0x38
 #define COMPARE			0x39
 #define COPY_VERIFY		0x3a
 #define WRITE_BUFFER		0x3b
 #define READ_BUFFER		0x3c
+#define UPDATE_BLOCK            0x3d
 #define READ_LONG		0x3e
+#define WRITE_LONG              0x3f
 #define CHANGE_DEFINITION	0x40
+#define WRITE_SAME             0x41
 #define LOG_SELECT		0x4c
 #define LOG_SENSE		0x4d
 #define MODE_SELECT_10		0x55
 #define MODE_SENSE_10		0x5a
+#define WRITE_12                0xaa
+#define WRITE_VERIFY_12         0xae
+#define SEARCH_HIGH_12          0xb0
+#define SEARCH_EQUAL_12         0xb1
+#define SEARCH_LOW_12           0xb2
+#define SEND_VOLUME_TAG         0xb6
 
 extern void scsi_make_blocked_list(void);
 extern volatile int in_scan_scsis;

drivers/scsi/sd.c

@@ -358,8 +358,8 @@ static void do_sd_request (void)
   unsigned long flags;
   int flag = 0;
 
-  while (1==1){
   save_flags(flags);
+  while (1==1){
     cli();
     if (CURRENT != NULL && CURRENT->dev == -1) {
       restore_flags(flags);
@@ -387,12 +387,10 @@ static void do_sd_request (void)
 
     /*
      * The following restore_flags leads to latency problems.  FIXME.
+     * Using a "sti()" gets rid of the latency problems but causes
+     * race conditions and crashes.
      */
-#if 0
     restore_flags(flags);
-#else
-    sti();
-#endif
 
 /* This is a performance enhancement.  We dig down into the request list and
    try and find a queueable request (i.e. device not busy, and host able to
@@ -404,7 +402,6 @@ static void do_sd_request (void)
     if (!SCpnt && sd_template.nr_dev > 1){
       struct request *req1;
       req1 = NULL;
-      save_flags(flags);
       cli();
       req = CURRENT;
       while(req){

drivers/scsi/st.c

@@ -1063,8 +1063,7 @@ st_read(struct inode * inode, struct file * filp, char * buf, int count)
 	SCpnt->request.dev = dev;
 	scsi_do_cmd (SCpnt,
 		     (void *) cmd, (STp->buffer)->b_data,
-		     (STp->buffer)->buffer_size,
-		     st_sleep_done, ST_TIMEOUT, MAX_RETRIES);
+		     bytes, st_sleep_done, ST_TIMEOUT, MAX_RETRIES);
 
 
 	/* this must be done with interrupts off */

fs/isofs/inode.c

@@ -79,7 +79,7 @@ static int parse_options(char *options, struct iso9660_options * popt)
 	popt->rock = 'y';
 	popt->cruft = 'n';
 	popt->unhide = 'n';
-	popt->conversion = 'a';
+	popt->conversion = 'b';		/* default: no conversion */
 	popt->blocksize = 1024;
 	popt->mode = S_IRUGO;
 	popt->gid = 0;

include/linux/major.h

@@ -7,8 +7,8 @@
 
 /* limits */
 
-#define MAX_CHRDEV 32
-#define MAX_BLKDEV 32
+#define MAX_CHRDEV 64
+#define MAX_BLKDEV 64
 
 /*
  * assignments

include/linux/serial.h

@@ -140,6 +140,7 @@ struct async_struct {
 	int			xmit_tail;
 	int			xmit_cnt;
 	struct tq_struct	tqueue;
+	struct tq_struct	tqueue_hangup;
 	struct termios		normal_termios;
 	struct termios		callout_termios;
 	struct wait_queue	*open_wait;
@@ -160,7 +161,6 @@ struct async_struct {
  * time, instead of at rs interrupt time.
  */
 #define RS_EVENT_WRITE_WAKEUP	0
-#define RS_EVENT_HANGUP		1
 
 /*
  * Multiport serial configuration structure --- internal structure

include/linux/tqueue.h

@@ -57,7 +57,7 @@ typedef struct tq_struct * task_queue;
 #define DECLARE_TASK_QUEUE(q)  task_queue q = &tq_last
 
 extern struct tq_struct tq_last;
-extern task_queue tq_timer, tq_immediate;
+extern task_queue tq_timer, tq_immediate, tq_scheduler;
 
 #ifdef INCLUDE_INLINE_FUNCS
 struct tq_struct tq_last = {

kernel/ksyms.c

@@ -41,8 +41,10 @@
 #include <linux/tcp.h>
 #include "../net/inet/protocol.h"
 #include "../net/inet/arp.h"
+#if defined(CONFIG_PPP) || defined(CONFIG_SLIP)
 #include "../drivers/net/slhc.h"
 #endif
+#endif
 #ifdef CONFIG_PCI
 #include <linux/pci.h>
 #endif
@@ -209,6 +211,7 @@ struct symbol_table symbol_table = {
 	X(del_timer),
 	X(tq_timer),
 	X(tq_immediate),
+	X(tq_scheduler),
 	X(tq_last),
 	X(timer_active),
 	X(timer_table),
@@ -273,11 +276,13 @@ struct symbol_table symbol_table = {
 #ifdef CONFIG_INET	
 	X(inet_add_protocol),
 	X(inet_del_protocol),
+#if defined(CONFIG_PPP) || defined(CONFIG_SLIP)
 	X(slhc_init),
 	X(slhc_free),
 	X(slhc_remember),
 	X(slhc_compress),
 	X(slhc_uncompress),
+#endif
 #endif
 	/* Device callback registration */
 	X(register_netdevice_notifier),
@@ -323,6 +328,8 @@ struct symbol_table symbol_table = {
 	X(scsi_register),
 	X(scsi_unregister),
 	X(scsicam_bios_param),
+        X(scsi_init_malloc),
+        X(scsi_init_free),
 	X(print_command),
 #endif
 	/* Added to make file system as module */

kernel/sched.c

@@ -45,6 +45,7 @@ int tickadj = 500/HZ;			/* microsecs */
 
 DECLARE_TASK_QUEUE(tq_timer);
 DECLARE_TASK_QUEUE(tq_immediate);
+DECLARE_TASK_QUEUE(tq_scheduler);
 
 /*
  * phase-lock loop variables
@@ -119,6 +120,7 @@ asmlinkage void schedule(void)
 		printk("Aiee: scheduling in interrupt\n");
 		intr_count = 0;
 	}
+	run_task_queue(&tq_scheduler);
 	cli();
 	ticks = itimer_ticks;
 	itimer_ticks = 0;