30 Aug, 2005
15 commits
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Current uncorrectable error handling was poor enough
that the processor could just loop taking the same
trap over and over again. Fix things up so that we
at least get a log message and perhaps even some register
state.In the process, much consolidation became possible,
particularly with the correctable error handler.Prefix assembler and C function names with "spitfire"
to indicate that these are for Ultra-I/II/IIi/IIe only.More work is needed to make these routines robust and
featureful to the level of the Ultra-III error handlers.Signed-off-by: David S. Miller
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Verify we really are taking a data access exception trap, at TL1, from
one of the window spill/fill handlers.Else call a new function, data_access_exception_tl1, to log the error.
Signed-off-by: David S. Miller
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1) Read ASI_IMMU SFSR not ASI_DMMU.
2) IMMU has no SFAR, read TPC instead
3) Delete old and incorrect comment about the DTLB protection
trap having a dependency on the SFSR contents in order to
function correctlySigned-off-by: David S. Miller
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Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds -
Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds -
* ieee1394_device_id has kernel_ulong_t field after an odd number of
__u32 ones. Since mod_devicetable.h is included both from kernel and
from host build helper, we may be in trouble if we are building on
32bit host for 64bit target - userland sees unsigned long long,
kernel sees unsigned long and while their sizes match, alignments
might not. Fixed by forcing alignment. Fortunately, almost nobody
else needs that - the rest of such fields is naturally aligned as it
is.* of_device_id has void * in it. Host userland helpers need
kernel_ulong_t instead, since their void * might have nothing to do
with the kernel one. Fixed in the same way it's done for similar
problems in pcmcia_device_id (ifdef __KERNEL__).* pcmcia_device_id has the same problem as ieee1394_device_id. Fixed
the same way.Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds -
We've had Woozy Numbat for a while now. Here's an updated name care of
Jeff Garzik and myself.Signed-off-by: Benjamin LaHaise
Signed-off-by: Linus Torvalds -
It has been reported that the way Linux handles NODEFER for signals is
not consistent with the way other Unix boxes handle it. I've written a
program to test the behavior of how this flag affects signals and had
several reports from people who ran this on various Unix boxes,
confirming that Linux seems to be unique on the way this is handled.The way NODEFER affects signals on other Unix boxes is as follows:
1) If NODEFER is set, other signals in sa_mask are still blocked.
2) If NODEFER is set and the signal is in sa_mask, then the signal is
still blocked. (Note: this is the behavior of all tested but Linux _and_
NetBSD 2.0 *).The way NODEFER affects signals on Linux:
1) If NODEFER is set, other signals are _not_ blocked regardless of
sa_mask (Even NetBSD doesn't do this).2) If NODEFER is set and the signal is in sa_mask, then the signal being
handled is not blocked.The patch converts signal handling in all current Linux architectures to
the way most Unix boxes work.Unix boxes that were tested: DU4, AIX 5.2, Irix 6.5, NetBSD 2.0, SFU
3.5 on WinXP, AIX 5.3, Mac OSX, and of course Linux 2.6.13-rcX.* NetBSD was the only other Unix to behave like Linux on point #2. The
main concern was brought up by point #1 which even NetBSD isn't like
Linux. So with this patch, we leave NetBSD as the lonely one that
behaves differently here with #2.Signed-off-by: Linus Torvalds
29 Aug, 2005
5 commits
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This patch adds back the code that was taken out, thus re-enabling:
* The PHY Layer to initialize without crashing
* Drivers to actually connect to PHYs
* The entire PHY Control LayerThis patch is used by the gianfar driver, and other drivers which are in
development.Signed-off-by: Andy Fleming
Signed-off-by: Jeff Garzik -
This kills i386-specific stuff from arm Kconfig. Please apply,
Signed-off-by: Pavel Machek
Signed-off-by: Russell King -
Bugfix (usage of uninitialized pointer in zfcp_port_dequeue) and compile
fixes for the zfcp device driver.Signed-off-by: Heiko Carstens
Acked-by: James Bottomley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
struct zfcp_port::scsi_id was removed by commit
3859f6a248cbdfbe7b41663f3a2b51f48e30b281Signed-off-by: Alexey Dobriyan
Signed-off-by: Linus Torvalds
28 Aug, 2005
8 commits
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[ Same race and same patch also by Steven Rostedt ]
I have a laptop (G3 powerbook) which will pretty reliably hit a race
between con_open and con_close late in the boot process and oops in
vt_ioctl due to tty->driver_data being NULL.What happens is this: process A opens /dev/tty6; it comes into
con_open() (drivers/char/vt.c) and assign a non-NULL value to
tty->driver_data. Then process A closes that and concurrently process
B opens /dev/tty6. Process A gets through con_close() and clears
tty->driver_data, since tty->count == 1. However, before process A
can decrement tty->count, we switch to process B (e.g. at the
down(&tty_sem) call at drivers/char/tty_io.c line 1626).So process B gets to run and comes into con_open with tty->count == 2,
as tty->count is incremented (in init_dev) before con_open is called.
Because tty->count != 1, we don't set tty->driver_data. Then when the
process tries to do anything with that fd, it oopses.The simple and effective fix for this is to test tty->driver_data
rather than tty->count in con_open. The testing and setting of
tty->driver_data is serialized with respect to the clearing of
tty->driver_data in con_close by the console_sem. We can't get a
situation where con_open sees tty->driver_data != NULL and then
con_close on a different fd clears tty->driver_data, because
tty->count is incremented before con_open is called. Thus this patch
eliminates the race, and in fact with this patch my laptop doesn't
oops.Signed-off-by: Paul Mackerras
[ Same patch
Signed-off-by: Steven Rostedt
in http://marc.theaimsgroup.com/?l=linux-kernel&m=112450820432121&w=2 ]
Signed-off-by: Linus Torvalds -
This patch fixes a severe problem with 2.6.13-rc7.
Due to recent SCSI changes it is not possible to add any LUNs to the zfcp
device driver anymore. With registration of remote ports this is fixed.Signed-off-by: Andreas Herrmann
Acked-by: James Bottomley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
I know that scsi procfs is legacy code but this is a fix for a memory leak.
While reading through sg.c I realized that the implementation of
/proc/scsi/sg/devices with seq_file is leaking memory due to freeing the
pointer returned by the next() iterator method. Since next() might return
NULL or an error this is wrong. This patch fixes it through using the
seq_files private field for holding the reference to the iterator object.Here is a small bash script to trigger the leak. Use slabtop to watch
the size-32 usage grow and grow.#!/bin/sh
while true; do
cat /proc/scsi/sg/devices > /dev/null
doneSigned-off-by: Jan Blunck
Acked-by: James Bottomley
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fixed race between submitting streaming URBs in the driver and starting
the actual transfer in hardware (demodulator and USB controller) which
sometimes lead to garbled data transfers. URBs are now submitted first,
then the transfer is enabled. Dibusb devices and clones are now fully
functional again.Signed-off-by: Patrick Boettcher
Signed-off-by: Linus Torvalds -
This fixes a bug in the capifs initialization code, where the
filesystem is not unregistered if kern_mount() fails.Signed-off-by: James Morris
Signed-off-by: Karsten Keil
Signed-off-by: Linus Torvalds -
When acpi_sleep_prepare was moved into a shutdown method we
started calling it for all shutdowns.It appears this triggers some systems to power off on reboot.
Avoid this by only calling acpi_sleep_prepare if we are going to power
off the system.Signed-off-by: Eric W. Biederman
Signed-off-by: Linus Torvalds -
- copy_from_user() can fail; ->write() must check its return value.
- severe buffer overruns both in ->read() and ->write() - lseek to the
end (i.e. to mmapper_size) andif (count + *ppos > mmapper_size)
count = count + *ppos - mmapper_size;will do absolutely nothing. Then it will call
copy_to_user(buf,&v_buf[*ppos],count);
with obvious results (similar for ->write()).
Fixed by turning read to simple_read_from_buffer() and by doing
normal limiting of count in ->write().- gratitious lock_kernel() in ->mmap() - it's useless there.
- lots of gratuitous includes.
Signed-off-by: Al Viro
Signed-off-by: Linus Torvalds
27 Aug, 2005
12 commits
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Both revisions share the same PCI device ID and vendor ID but revision 2
of the device uses SysKonnect's chipset whereas revision 3 of the device
uses Realtek's 8169 chipset.Credit goes to Christiaan Lutzer for reporting
the issue and giving the actual value for the different revisions.Signed-off-by: Francois Romieu
Signed-off-by: Jeff Garzik -
Rewrite the mkiss driver to make it SMP-proof following the example of
6pack.c.Signed-off-by: Ralf Baechle DL5RB
Signed-off-by: Jeff Garzik -
Don't check type of sax25_family; dev_set_mac_address has already done
that before and anyway, the type to check against would have been
ARPHRD_AX25. We only got away because AF_AX25 and ARPHRD_AX25 both happen
to be defined to the same value.Don't check sax25_ndigis either; it's value is insignificant for the
purpose of setting the MAC address and the check has shown to break
some application software for no good reason.Signed-off-by: Ralf Baechle DL5RB
Signed-off-by: Jeff Garzik -
I dropped the timer initialization bits by accident when sending the
p-persistence fix. This patch gets the driver to work again on halfduplex
links.Signed-off-by: Ralf Baechle DL5RB
Signed-off-by: Jeff Garzik -
Fix bugs for unlikely edge cases noticed by Douglas Gilbert:
- When READ(6)/WRITE(6) sector count == 0, treat it as 256 sectors
- For other READ(x)/WRITE(x), when sector count == 0, error.
We don't support successfully completing zero-length transfers at
this time. -
Move the InfiniBand headers from drivers/infiniband/include to include/rdma.
This allows InfiniBand-using code to live elsewhere, and lets us remove the
ugly EXTRA_CFLAGS include path from the InfiniBand Makefiles.Signed-off-by: Roland Dreier
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Currently we may have work scheduled in default kernel workqueue when
the device is going down. The device could get freed before this
workqueue gets serviced. I am actually seeing this causing system
hangs.The following patch fixes this by using ipoib_workqueue which gets
flushed when the device is going down.Signed-off-by: Michael S. Tsirkin
Signed-off-by: Roland Dreier -
Add handling for ABORT / STOP RMPP MADs.
Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
Fix deadlock condition resulting from trying to destroy a cm_id
from the context of a CM thread. The synchronization around the
ucm context structure is simplified as a result, and some simple
code cleanup is included.Signed-off-by: Sean Hefty
Signed-off-by: Roland Dreier -
Always make sure that the full membership bit is set in the P_Keys
that IPoIB uses. This makes sure that all hosts join the correct
multicast groups so that hosts that are partial partition members
can talk to the rest of the network.Signed-off-by: Roland Dreier
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Add mthca support for shared receive queues (SRQs),
including userspace SRQs.Signed-off-by: Roland Dreier
