- 10 Apr, 2007 1 commit
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Suleiman Souhlal authored
It is possible for the timer expiry function to run even though the request has already been handled: ide_timer_expiry() only checks that the handler is not NULL, but it is possible that we have handled a request (thus clearing the handler) and then started a new request (thus starting the timer again, and setting a handler). A simple way to exhibit this is to set the DMA timeout to 1 jiffy and run dd: The kernel will panic after a few minutes because ide_timer_expiry() tries to add a timer when it's already active. To fix this, we simply add a request generation count that gets incremented at every interrupt, and check in ide_timer_expiry() that we have not already handled a new interrupt before running the expiry function. Signed-off-by:
Suleiman Souhlal <suleiman@google.com> Signed-off-by:
Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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- 09 Apr, 2007 7 commits
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Linus Torvalds authored
* 'for-2.6.21' of master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart: [AGPGART] intel_agp: PCI id update for Intel 965GM
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Andrew Morton authored
WARNING: arch/i386/kernel/built-in.o - Section mismatch: reference to .init.text:irqbalance_disable from .text between 'quirk_intel_irqbalance' (at offset 0x80a5) and 'i8237A_suspend' Cc: Andi Kleen <ak@suse.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Andrew Morton authored
WARNING: arch/x86_64/kernel/built-in.o - Section mismatch: reference to .init.text:nvidia_bugs from .data between 'early_qrk' (at offset 0x8428) and 'enable_cpu_hotplug' WARNING: arch/x86_64/kernel/built-in.o - Section mismatch: reference to .init.text:via_bugs from .data between 'early_qrk' (at offset 0x8438) and 'enable_cpu_hotplug' WARNING: arch/x86_64/kernel/built-in.o - Section mismatch: reference to .init.text:ati_bugs from .data between 'early_qrk' (at offset 0x8448) and 'enable_cpu_hotplug' The compiler is putting it into .data because the __initdata is in the wrong place. Cc: Andi Kleen <ak@suse.de> Signed-off-by:
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David Brownell authored
Convert omap_cf into a platform_driver ... this resolves oopsing during suspend/resume. Evidently folk haven't tried suspend/resume on an OSK (the main platform for this driver) since September or so, which is when platform_device learned about suspend_late()/resume_early() and stopped being able to suspend/resume without a platform_driver. Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by:
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Zachary Amsden authored
Since lazy MMU batching mode still allows interrupts to enter, it is possible for interrupt handlers to try to use kmap_atomic, which fails when lazy mode is active, since the PTE update to highmem will be delayed. The best workaround is to issue an explicit flush in kmap_atomic_functions case; this is the only way nested PTE updates can happen in the interrupt handler. Thanks to Jeremy Fitzhardinge for noting the bug and suggestions on a fix. This patch gets reverted again when we start 2.6.22 and the bug gets fixed differently. Signed-off-by:
Zachary Amsden <zach@vmware.com> Cc: Andi Kleen <ak@muc.de> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by:
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Timo Savola authored
If rootmode isn't valid, we hit the BUG() in fuse_init_inode. Now EINVAL is returned. Signed-off-by:
Timo Savola <tsavola@movial.fi> Signed-off-by:
Miklos Szeredi <mszeredi@suse.cz> Signed-off-by:
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Wang Zhenyu authored
Update PCI id info for Intel 965GM chipset. Signed-off-by:
Wang Zhenyu <zhenyu.z.wang@intel.com> Signed-off-by:
Dave Jones <davej@redhat.com>
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- 07 Apr, 2007 6 commits
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Linus Torvalds authored
Getting rid of the p->children printout in show_task() left behind an unused variable. Signed-off-by: -
Ingo Molnar authored
the p->parent PID printout gives us all the information about the task tree that we need - the eldest_child()/older_sibling()/ younger_sibling() printouts are mostly historic and i do not remember ever having used those fields. (IMO in fact they confuse the SysRq-T output.) So remove them. This code has sentimental value though, those fields and printouts are one of the oldest ones still surviving from Linux v0.95's kernel/sched.c: if (p->p_ysptr || p->p_osptr) printk(" Younger sib=%d, older sib=%d\n\r", p->p_ysptr ? p->p_ysptr->pid : -1, p->p_osptr ? p->p_osptr->pid : -1); else printk("\n\r"); written 15 years ago, in early 1992. Signed-off-by:Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Tejun Heo authored
devres should be deallocated with devres_free() not kfree(). This bug corrupts slab on IRQ request failure. Fix it. Signed-off-by:
Tejun Heo <htejun@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg KH <gregkh@suse.de> Signed-off-by:
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Ingo Molnar authored
Soeren Sonnenburg reported that upon resume he is getting this backtrace: [<c0119637>] smp_apic_timer_interrupt+0x57/0x90 [<c0142d30>] retrigger_next_event+0x0/0xb0 [<c0104d30>] apic_timer_interrupt+0x28/0x30 [<c0142d30>] retrigger_next_event+0x0/0xb0 [<c0140068>] __kfifo_put+0x8/0x90 [<c0130fe5>] on_each_cpu+0x35/0x60 [<c0143538>] clock_was_set+0x18/0x20 [<c0135cdc>] timekeeping_resume+0x7c/0xa0 [<c02aabe1>] __sysdev_resume+0x11/0x80 [<c02ab0c7>] sysdev_resume+0x47/0x80 [<c02b0b05>] device_power_up+0x5/0x10 it turns out that on resume we mistakenly re-enable interrupts too early. Do the timer retrigger only on the current CPU. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Acked-by:
Soeren Sonnenburg <kernel@nn7.de> Signed-off-by:
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [TG3]: Fix crash during tg3_init_one(). [IPV6]: Revert recent change to rt6_check_dev(). [XFRM]: beet: fix IP option decapsulation [XFRM]: beet: fix beet mode decapsulation [XFRM]: beet: use IPOPT_NOP for option padding [XFRM]: beet: fix IP option encapsulation
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Michael Chan authored
The driver will crash when the chip has been initialized by EFI before tg3_init_one(). In this case, the driver will call tg3_chip_reset() before allocating consistent memory. The bug is fixed by checking for tp->hw_status before accessing it during tg3_chip_reset(). Signed-off-by:
Michael Chan <mchan@broadcom.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 06 Apr, 2007 2 commits
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David S. Miller authored
This reverts a0d78ebf It causes pings to link-local addresses to fail. Signed-off-by:
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Linus Torvalds authored
.. perfect? Ahh, sure. Signed-off-by:
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- 05 Apr, 2007 16 commits
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Patrick McHardy authored
Beet mode looks for the beet pseudo header after the outer IP header, which is wrong since that is followed by the ESP header. Additionally it needs to adjust the packet length after removing the pseudo header and point the data pointer to the real data location. Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
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Patrick McHardy authored
Beet mode decapsulation fails to properly set up the skb pointers, which only works by accident in combination with CONFIG_NETFILTER, since in that case the skb is fixed up in xfrm4_input before passing it to the netfilter hooks. Signed-off-by:
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Patrick McHardy authored
draft-nikander-esp-beet-mode-07.txt states "The padding MUST be filled with NOP options as defined in Internet Protocol [1] section 3.1 Internet header format.", so do that. Signed-off-by:
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Patrick McHardy authored
Beet mode calculates an incorrect value for the transport header location when IP options are present, resulting in encapsulation errors. The correct location is 4 or 8 bytes before the end of the original IP header, depending on whether the pseudo header is padded. Signed-off-by:
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Herbert Xu authored
Up until this point we've accepted replay window settings greater than 32 but our bit mask can only accomodate 32 packets. Thus any packet with a sequence number within the window but outside the bit mask would be accepted. This patch causes those packets to be rejected instead. Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Mitsuru Chinen authored
Incoming trancated packets are counted as not only InTruncatedPkts but also InHdrErrors. They should be counted as InTruncatedPkts only. Signed-off-by:
Mitsuru Chinen <mitch@linux.vnet.ibm.com> Acked-by:
YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by:
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Jean Delvare authored
When we receive an AppleTalk frame shorter than what its header says, we still attempt to verify its checksum, and trip on the BUG_ON() at the end of function atalk_sum_skb() because of the length mismatch. This has security implications because this can be triggered by simply sending a specially crafted ethernet frame to a target victim, effectively crashing that host. Thus this qualifies, I think, as a remote DoS. Here is the frame I used to trigger the crash, in npg format: <Appletalk Killer> { # Ethernet header ----- XX XX XX XX XX XX # Destination MAC 00 00 00 00 00 00 # Source MAC 00 1D # Length # LLC header ----- AA AA 03 08 00 07 80 9B # Appletalk # Appletalk header ----- 00 1B # Packet length (invalid) 00 01 # Fake checksum 00 00 00 00 # Destination and source networks 00 00 00 00 # Destination and source nodes and ports # Payload ----- 0C 0D 0E 0F 10 11 12 13 14 } The destination MAC address must be set to those of the victim. The severity is mitigated by two requirements: * The target host must have the appletalk kernel module loaded. I suspect this isn't so frequent. * AppleTalk frames are non-IP, thus I guess they can only travel on local networks. I am no network expert though, maybe it is possible to somehow encapsulate AppleTalk packets over IP. The bug has been reported back in June 2004: http://bugzilla.kernel.org/show_bug.cgi?id=2979 But it wasn't investigated, and was closed in July 2006 as both reporters had vanished meanwhile. This code was new in kernel 2.6.0-test5: http://git.kernel.org/?p=linux/kernel/git/tglx/history.git;a=commitdiff;h=7ab442d7e0a76402c12553ee256f756097cae2d2 And not modified since then, so we can assume that vanilla kernels 2.6.0-test5 and later, and distribution kernels based thereon, are affected. Note that I still do not know for sure what triggered the bug in the real-world cases. The frame could have been corrupted by the kernel if we have a bug hiding somewhere. But more likely, we are receiving the faulty frame from the network. Signed-off-by:Jean Delvare <jdelvare@suse.de> Signed-off-by:
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Maciej Zenczykowski authored
Just a one-byter for an ia64 thinko/typo - already fixed for i386 and x86_64. Acked-by:
Tony Luck <tony.luck@intel.com> Signed-off-by:
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Yoichi Yuasa authored
drivers/tc/zs.c:73:24: error: asm/dec/tc.h: No such file or directory Signed-off-by:
Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by:
Maciej W. Rozycki <macro@linux-mips.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
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john stultz authored
In debugging a problem w/ the -rt tree, I noticed that on systems that mark the tsc as unstable before it is registered, the TSC would still be selected and used for a short period of time. Digging in it looks to be a result of the mix of the clocksource list changes and my clocksource initialization changes. With the -rt tree, using a bad TSC, even for a short period of time can results in a hang at boot. I was not able to reproduce this hang w/ mainline, but I'm not completely certain that someone won't trip on it. This patch resolves the issue by initializing the jiffies clocksource earlier so a bad TSC won't get selected just because nothing else is yet registered. Signed-off-by:
John Stultz <johnstul@us.ibm.com> Acked-by:
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Mike Miller (OS Dev) authored
This patch adds initialization of drv->cylinders back into the failing case in cciss_geometry_inquiry. I inadvertently removed it in one my 2TB updates. Signed-off-by:
Mike Miller <mike.miller@hp.com> Signed-off-by:
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Andrew Morton authored
Revert all this. It can cause device-mapper to receive a different major from earlier kernels and it turns out that the Amanda backup program (via GNU tar, apparently) checks major numbers on files when performing incremental backups. Which is a bit broken of Amanda (or tar), but this feature isn't important enough to justify the churn. Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Rafael J. Wysocki authored
Fix a bug in the swsusp's memory shrinker that causes some systems using highmem to refuse to suspend to disk if image_size is set above 1/2 of available RAM. Special thanks to Jiri Slaby for reporting the problem and assistance in debugging it. Signed-off-by:
Rafael J. Wysocki <rjw@sisk.pl> Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by:
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Adrian Bunk authored
The return value of kernel_recvmsg() should be assigned to "err", not compared with the random value of a never initialized "err" (and the "< 0" check wrongly always returned false since == comparisons never have a result < 0). Spotted by the Coverity checker. Signed-off-by:
Adrian Bunk <bunk@stusta.de> Acked-by:
Neil Brown <neilb@suse.de> Signed-off-by:
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NeilBrown authored
A device can be removed from an md array via e.g. echo remove > /sys/block/md3/md/dev-sde/state This will try to remove the 'dev-sde' subtree which will deadlock since commit e7b0d26a With this patch we run the kobject_del via schedule_work so as to avoid the deadlock. Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by:
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Thomas Bittermann authored
This patch adds 2 missing symbol exports: jiffies_to_timeval() and timeval_to_jiffies(). The (not yet merged) dm-raid4-5 module will need them, and they used to be indirectly exported by virtue of being inline functions. Commit 8b9365d7 ("[PATCH] Uninline jiffies.h functions") uninlined them, and thus modules now need them explicitly exported to use them. Signed-off-by:
Thomas Bittermann <t.bittermann@online.de> Acked-by:
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- 04 Apr, 2007 8 commits
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git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds authored
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [S390] cio: Fix handling of interrupt for csch(). [S390] page_mkclean data corruption.
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Eric W. Biederman authored
The generic networking code ensures that no two networking devices have the same name, so there is no time except when sysfs has implementation bugs that device_rename when called from dev_change_name will fail. The current error handling for errors from device_rename in dev_change_name is wrong and results in an unusable and unrecoverable network device if device_rename is happens to return an error. This patch removes the buggy error handling. Which confines the mess when device_rename hits a problem to sysfs, instead of propagating it the rest of the network stack. Making linux a little more robust. Without this patch you can observe what happens when sysfs has a bug when CONFIG_SYSFS_DEPRECATED is not set and you attempt to rename a real network device to a name like (broken_parity_status, device, modalias, power, resource2, subsystem_vendor, class, driver, irq, msi_bus, resource, subsystem, uevent, config, enable, local_cpus, numa_node, resource0, subsystem_device, vendor) Greg has a patch that fixes the sysfs bugs but he doesn't trust it for a 2.6.21 timeframe. This patch which just ignores errors should be safe and it keeps the system from going completely wacky. Signed-off-by:
Eric W. Biederman <ebiederm@xmission.com> Signed-off-by:
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David Howells authored
Mention the slab name when listing corrupt objects. Although the function that released the memory is mentioned, that is frequently ambiguous as such functions often release several pieces of memory. Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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Linus Torvalds authored
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: libata: Limit ATAPI DMA to R/W commands only for TORiSAN DVD drives (take 3) libata: Limit max sector to 128 for TORiSAN DVD drives (take 3) libata: Clear tf before doing request sense (take 3) libata: reorder HSM_ST_FIRST for easier decoding (take 3) libata bugfix: preserve LBA bit for HDIO_DRIVE_TASK 2.6.21 fix lba48 bug in libata fill_result_tf()
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Robert Hancock authored
This adds some NCQ blacklist entries taken from the Silicon Image 3124/3132 Windows driver .inf files. There are some confirming reports of problems with these drives under Linux (for example http://lkml.org/lkml/2007/3/4/178) so let's disable NCQ on these drives. [ I'm personally starting to wonder whether we shouldn't disable NCQ by default, and perhaps have a white-list. There seems to be a *lot* of drives that do this wrong.. - Linus ] Signed-off-by:
Robert Hancock <hancockr@shaw.ca> Acked-by:
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Linus Torvalds authored
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: r8169: fix suspend/resume for down interface r8169: issue request_irq after the private data are completely initialized b44: fix IFF_ALLMULTI handling of CAM slots cxgb3 - Firwmare update cxgb3 - Tighten xgmac workaround cxgb3 - detect NIC only adapters cxgb3 - Safeguard TCAM size usage
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Cornelia Huck authored
Wipe internal irb if the clear function bit is set before accumulating bits from the irb in order to follow hardware behaviour. Signed-off-by:
Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com>
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Martin Schwidefsky authored
The git commit c2fda5fe which added the page_test_and_clear_dirty call to page_mkclean and the git commit 7658cc28 which fixes the "nasty and subtle race in shared mmap'ed page writeback" problem in clear_page_dirty_for_io cause data corruption on s390. The effect of the two changes is that for every call to clear_page_dirty_for_io a page_test_and_clear_dirty is done. If the per page dirty bit is set set_page_dirty is called. Strangly clear_page_dirty_for_io is called for not-uptodate pages, e.g. over this call-chain: [<000000000007c0f2>] clear_page_dirty_for_io+0x12a/0x130 [<000000000007c494>] generic_writepages+0x258/0x3e0 [<000000000007c692>] do_writepages+0x76/0x7c [<00000000000c7a26>] __writeback_single_inode+0xba/0x3e4 [<00000000000c831a>] sync_sb_inodes+0x23e/0x398 [<00000000000c8802>] writeback_inodes+0x12e/0x140 [<000000000007b9ee>] wb_kupdate+0xd2/0x178 [<000000000007cca2>] pdflush+0x162/0x23c The bad news now is that page_test_and_clear_dirty might claim that a not-uptodate page is dirty since SetPageUptodate which resets the per page dirty bit has not yet been called. The page writeback that follows clobbers the data on disk. The simplest solution to this problem is to move the call to page_test_and_clear_dirty under the "if (page_mapped(page))". If a file backed page is mapped it is uptodate. Signed-off-by:
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