- 17 Dec, 2003 4 commits
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David Mosberger authored
into tiger.hpl.hp.com:/data1/bk/lia64/to-linus-2.5
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Linus Torvalds authored
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Jes Sorensen authored
This fixes a bug in the qla1280 driver where it would leave a pointer to an on the stack completion event in a command structure if qla1280_mailbox_command fails. The result is that the interrupt handler later tries to complete() garbage on the stack. The mailbox command can fail if a device on the bus decides to lock up etc.
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Jens Axboe authored
I just found Yet Another Bug in scsi_ioctl - CDROM_SEND_PACKET puts a kernel pointer in hdr->cmdp, where sg_io() expects to find user address. This worked up until recently because of the memcpy bug, but now it doesn't because we do the proper copy_from_user(). This fix undoes the user copy code from sg_io, and instead makes the SG_IO ioctl copy it locally. This makes SG_IO and CDROM_SEND_PACKET agree on the calling convention, and everybody is happy. I've tested that both cdrecord -dev=/dev/hdc -inq and cdrecord -dev=ATAPI:/dev/hdc -inq works now. The former will use SG_IO, the latter CDROM_SEND_PACKET (and incidentally would work in both 2.4 and 2.6, if it wasn't for CDROM_SEND_PACKET sucking badly in 2.4).
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- 16 Dec, 2003 1 commit
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David Mosberger authored
this change: Jim Wilson says that gcc v3.3 also supports marking ar.pfs as clobbered, so use ia64_spinlock_contention() for any GCC with v3.3 or newer.
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- 15 Dec, 2003 3 commits
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Jens Axboe authored
From Jon Burgess: There is a problems with blank DVD media using the ide-cd driver. When we attempt to read the blank disk, the drive responds to the read request by returning a "blank media" error. The kernel doesn't have any special case handling for this sense value and retries the request a couple of times, then gives up and does a bus reset and disables DMA to the device. Which obviously doesn't help the situation. The sense key value of 8 isn't listed in ide-cd.h, but it is listed in scsi.h as a "BLANK_CHECK" error. This trivial patch treats this error condition as a reason to abort the request. This behaviour is the same as what we do with a blank CD-R. It looks like the same fix might be desired for 2.4 as well, although is perhaps not so important since scsi-ide is normally used instead.
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bk://linuxusb.bkbits.net/gregkh-2.6Linus Torvalds authored
into home.osdl.org:/home/torvalds/v2.5/linux
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Neil Brown authored
1/ make sure raid5 doesn't try to handle multiple overlaping requests at the same time as this would confuse things badly. Currently it justs BUGs if this is attempted. 2/ Fix a possible data-loss-on-write problem. If two or more bio's that write to the same page are processed at the same time, only the first was actually commited to storage. 3/ Fix a use-after-free bug. raid5 keeps the bio's it is given in linked lists when more than one bio touch a single page. In some cases the tail of this list can be freed, and the current test for 'are we at the end' isn't reliable. This patch strengths the test to make it reliable.
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- 14 Dec, 2003 1 commit
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Linus Torvalds authored
Petr Vandrovec noticed a problem where the thread group leader would not be properly reaped if the parent of the thread group was ignoring SIGCHLD, and the thread group leader had exited before the last sub-thread. Fixed by Ingo Molnar.
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- 13 Dec, 2003 3 commits
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Linus Torvalds authored
This time we have a SMP memory ordering issue in prepare_to_wait(), where we really need to make sure that subsequent tests for the event we are waiting for can not migrate up to before the wait queue has been set up.
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René Scharfe authored
In 2.5.x, the BKL was pushed from vfs_readdir() into the filesystem specific functions. But only the unlock_kernel() made it into the HPFS code, lock_kernel() got lost on the way. This rendered the filesystem unusable. This adds the missing lock_kernel(). It's been tested by Timo Maier who also reported the problem earlier today.
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Jens Axboe authored
The previous scsi_ioctl.c patch didn't cleanup the buffer/bio in the error case. Fix it by copying the command data earlier.
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- 12 Dec, 2003 4 commits
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David Mosberger authored
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David Mosberger authored
CONFIG_DISABLE_VHPT.
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David Mosberger authored
put_user() arguments with function-calls would cause the macro to return unexpected values. Fixed by avoiding macro argument evaluation while r8/r9 are in use for exception-handling purposes. Also, consolidated access-macros so that GCC and Intel compiler use 90% the same code.
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Linus Torvalds authored
corruption on SMP because of another CPU still accessing a waitqueue even after it was de-allocated. Use a careful version of the list emptiness check to make sure we don't de-allocate the stack frame before the waitqueue is all done.
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- 11 Dec, 2003 2 commits
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David Mosberger authored
atomic_dec_and_lock(). Actually, this could be the generic version for any platform that has cmpxchg().
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Greg Kroah-Hartman authored
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- 10 Dec, 2003 5 commits
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David Mosberger authored
backwards-compatibility with older (broken) versions of GCC which recognize a signal-handler only if it is in the address range from 0xa000000000000100. to 0xa000000000020000.
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David Mosberger authored
clobbered, so use ia64_spinlock_contention() for any GCC with v3.3 or newer.
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Greg Kroah-Hartman authored
into kroah.com:/home/greg/linux/BK/usb-2.6
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Andrey Borzenkov authored
visor.c defines one empty slot in USB ids table that can be filled in at runtime using module parameters. file2alias generates catch-all alias for it: alias usb:v*p*dl*dh*dc*dsc*dp*ic*isc*ip* visor patch adds the same sanity check as in depmod to scripts/file2alias.
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Greg Kroah-Hartman authored
This patch fixes the bug where running ppp over a ttyUSB device would fail.
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- 09 Dec, 2003 7 commits
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Herbert Xu authored
This patch was integrated by you in 2.4 six months ago. Unfortunately it never got into 2.5. Without it you can end up with crashes such as http://bugs.debian.org/218670
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Alan Stern authored
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Oliver Neukum authored
apart from locking bugs, there are other races. This fixes one with signal delivery. The signal should be delivered _before_ the reciever is woken.
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Oliver Neukum authored
this fixes two instances of GFP_KERNEL from completion handlers.
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Tom Rini authored
On Mon, Dec 01, 2003 at 11:21:58AM -0800, Greg KH wrote: > Can't you use xsane without the scanner kernel driver? I thought the > latest versions used libusb/usbfs to talk directly to the hardware. > Because of this, the USB scanner driver is marked to be removed from the > kernel sometime in the near future. After a bit of mucking around (and possibly finding a bug with debian's libusb/xsane/hotplug interaction, nothing seems to run /etc/hotplug/usb/libusbscanner and thus only root can scan, anyone whose got this working please let me know), the problem does not exist if I only use libusb xsane. How about the following:
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Matthew Dharm authored
This patch fixes some obvious errors in the jumpshot and datafab drivers. This should close out Bugzilla bug #1408 > Date: Mon, 1 Dec 2003 12:14:53 -0500 (EST) > From: Alan Stern <stern@rowland.harvard.edu> > Subject: Patch from Eduard Hasenleithner > To: Matthew Dharm <mdharm-usb@one-eyed-alien.net> > cc: USB Storage List <usb-storage@one-eyed-alien.net> > > Matt: > > Did you see this patch? It was posted to the usb-development mailing list > about a week ago, before I started making all my changes. It is clearly > correct and necessary. > > Alan Stern
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Jens Axboe authored
James reported a bug in scsi_ioctl.c where it mem copies a user pointer instead of using copy_from_user(). I inadvertently introduced this one when getting rid of CDROM_SEND_PACKET. Here's a trivial patch to fix it.
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- 08 Dec, 2003 5 commits
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Arnaldo Carvalho de Melo authored
TCP IPV6 ->hash() method should not grab a socket reference.
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Peter Chubb authored
Here's a fix for non-preemption safety in perfmon.c. I haven't tried it while running a preemption stress test, but this allows q-syscollect to work.
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Greg Kroah-Hartman authored
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David Brownell authored
If a device can't be configured, the current test9 code forgets to clean it out of sysfs. This resolves that issue, so the retry in usb_new_device() stands a chance of working. The enumeration code still doesn't handle such errors well, but at least this way that hub port can be used for another device.
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Greg Kroah-Hartman authored
They should be bound to the interface the driver is attached to, not the device.
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- 07 Dec, 2003 5 commits
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James McMechan authored
The problem was that the cursor was in the list being walked, and when the pointer pointed to the cursor the list_del/list_add_tail pair would oops trying to find the entry pointed to by the prev pointer of the deleted cursor element. The solution I found was to move the list_del earlier, before the beginning of the list walk. since it is not used during the list walk and should not count in the list enumeration it can be deleted, then the list pointer cannot point to it so it can be added safely with the list_add_tail without oopsing, and everything works as expected. I am unable to oops this version with any of my test programs. Patch acked by Al Viro.
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Linus Torvalds authored
into home.osdl.org:/home/torvalds/v2.5/linux
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Martin Devera authored
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David S. Miller authored
Based upon a patch from devik.
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Jeff Garzik authored
From Javier Achirica: Delay MIC activation to prevent Oops
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