- 29 Jul, 2006 9 commits
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Andi Kleen authored
The dwarf2 unwinder currently often gets stuck because a lot of assembly code doesn't have proper dwarf2 annotiation yet. This currently often happens with __down. Should fix this by adding proper dwarf2 annotation to all inline assembly. However until that's done we need a quick fix for 2.6.18 to avoid incomplete backtraces. So when this happens dump the rest of the stack with the old unwinder instead of silently not dumping it. There was already a optional "both" mode that dumped both, but that was too ugly. I also clarified the headers for the different backtraces a bit. Also add a clear error message for missing dwarf2 annotation that people can work on. And I removed a dead variable left over from Ingo's changes. Cc: mingo@elte.hu Cc: jbeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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bibo mao authored
In x86_64 platform, INT1 and INT3 trap stack is IST stack called DEBUG_STACK, when INT1/INT3 trap happens, system will switch to DEBUG_STACK by hardware. Current DEBUG_STACK size is 4K, when int1/int3 trap happens, kernel will minus current DEBUG_STACK IST value by 4k. But if int3/int1 trap is nested, it will destroy other vector's IST stack. This patch modifies this, it sets DEBUG_STACK size as 8K and allows two level of nested int1/int3 trap. Kprobe DEBUG_STACK may be nested, because kprobe handler may be probed by other kprobes. Thanks jbeulich for pointing out error in the first patch. [AK: nested kprobes are pretty dubious. Hopefully one nest will be enough. This will cost 8K per CPU (4K more than before)] Signed-off-by: bibo, mao <bibo.mao@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
When int 0x80 is called from long mode r8-r11 would leak out of the kernel (or rather they would be filled with some values from the kernel stack). I don't think it's a security issue because the values come from the fixed stack frame which should be near always user registers from a previous interrupt. Still better fix it. Longer term the register save macros need to be cleaned up to avoid such mistakes in the future. Original analysis from Richard Brunner, fix by me. Cc: Richard.Brunner@amd.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Andi Kleen authored
Fixes a obscure user space triggerable crash during oprofiling. Oprofile calls profile_pc from NMIs even when user_mode(regs) is not true and the program counter is inside the kernel lock section. This opens a race - when a user program jumps to a kernel lock address and a NMI happens before the illegal page fault exception is raised and the program has a unmapped esp or ebp then the kernel could oops. NMIs have a higher priority than exceptions so that could happen. Add user_mode checks to i386/x86-64 profile_pc to prevent that. Cc: John Levon <levon@movementarian.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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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] update default configuration [S390] duplicate ccw devices in ccwgroup. [S390] permanent subchannel busy conditions may cause I/O stall
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SUNLANCE]: fix compilation on sparc-UP [SPARC]: Defer clock_probe to fs_initcall() [SPARC64]: Fix typo in pgprot_noncached(). [SPARC64]: Fix quad-float multiply emulation.
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git://oss.sgi.com:8090/nathans/xfs-rc-2.6Linus Torvalds authored
* git://oss.sgi.com:8090/nathans/xfs-rc-2.6: [XFS] Ensure bulkstat from an invalid inode number gets caught always with [XFS] Fix a barrier related forced shutdown on mounts with quota enabled. [XFS] Fix remount vs no/barrier options by ensuring we clear unwanted [XFS] All xfs_disk_dquot_t values are (as the name says) disk endian.
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git://brick.kernel.dk/data/git/linux-2.6-blockLinus Torvalds authored
* 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block: [PATCH] scsi: kill overeager "not-ready" messages [PATCH] it821x: fix ide dma setup bug [PATCH] ide: if the id fields looks screwy, disable DMA [PATCH] ide: option to disable cache flushes for buggy drives
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Chuck Ebbert authored
Recent changes in i386 __switch_to() have a misplaced closing parenthesis causing an unlikely() to terminate early. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- 28 Jul, 2006 11 commits
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Alexey Dobriyan authored
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nathan Scott authored
EINVAL. SGI-PV: 953819 SGI-Modid: xfs-linux-melb:xfs-kern:26629a Signed-off-by: Nathan Scott <nathans@sgi.com>
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Nathan Scott authored
SGI-PV: 912426 SGI-Modid: xfs-linux-melb:xfs-kern:26622a Signed-off-by: Nathan Scott <nathans@sgi.com>
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Nathan Scott authored
flags from iclog buffers before submitting them for writing. SGI-PV: 954772 SGI-Modid: xfs-linux-melb:xfs-kern:26605a Signed-off-by: Nathan Scott <nathans@sgi.com>
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Christoph Hellwig authored
Before putting them into struct statfs they should be endian-swapped. SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26550a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com>
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Jens Axboe authored
HAL and friends have a tendency to trigger this one all the time. It's not really interesting, so kill it. The vendor kernels all do anyways. Signed-off-by: Jens Axboe <axboe@suse.de>
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Jens Axboe authored
Only enable dma for a valid speed setting. Signed-off-by: Jens Axboe <axboe@suse.de>
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Jens Axboe authored
It's the safer choice. Originally due to a bug in itx821x, but a generally sound thing to do. Signed-off-by: Jens Axboe <axboe@suse.de>
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Jens Axboe authored
Some drives claim they support cache flushing, but get seriously confused if you try. Add this option to be able to boot with barriers enabled by default. Signed-off-by: Jens Axboe <axboe@suse.de>
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Bob Breuer authored
From: Bob Breuer <breuerr@mc.net> That way all the of_driver bits will be ready. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
The sun4v code sequence was or'ing in the sun4u pte bits by mistake. Signed-off-by: David S. Miller <davem@davemloft.net>
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- 27 Jul, 2006 4 commits
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David S. Miller authored
Something is wrong with the 3-multiply (vs. 4-multiply) optimized version of _FP_MUL_MEAT_2_*(), so just use the slower version which actually computes correct values. Noticed by Rene Rebe Signed-off-by: David S. Miller <davem@davemloft.net>
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Martin Schwidefsky authored
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Cornelia Huck authored
Fail to create a ccwgroup device if a ccw device is passed in twice. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Peter Oberparleiter authored
In special conditions where a subchannel rejects the HALT I/O- instruction with a busy indication (cc 2), I/O may stall. I/O request termination logic retries HALT I/O indefinitely because it expects HALT I/O to alter the subchannel status which is not true when cc 2 is returned. In case of a busy indication, try CLEAR I/O instruction immediately. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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- 26 Jul, 2006 5 commits
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Christoph Hellwig authored
This fixes three drivers to compile again after my patch that removes the data_cmnd member from struct scsi_cmnd. The fas216 change is trivial, it should have been using ->cmnd all the time. NCR53C9 (which seem to be mostly duplicate driver with esp.c!) is doing something odd, it should only have looked at ->cmnd before not the saved copy that is kept for the error handlers sake. Note that it really should deal with the sync setting themselves but use the generic domain validation code that get this right - but that's for later let's push this simple compile fix for now. And sorry for the late fix for this, I have been busy with OLS and associated activities last week. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SCSI] esp: Fix build. [SPARC]: Fix SA_STATIC_ALLOC value. [SPARC64]: Explicitly print return PC when the kernel fault PC is bogus.
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [IPV4/IPV6]: Setting 0 for unused port field in RAW IP recvmsg(). [IPV4] ipmr: ip multicast route bug fix. [TG3]: Update version and reldate [TG3]: Handle tg3_init_rings() failures [TG3]: Add tg3_restart_hw() [IPV4]: Clear the whole IPCB, this clears also IPCB(skb)->flags. [IPV6]: Clean skb cb on IPv6 input. [NETFILTER]: Demote xt_sctp to EXPERIMENTAL [NETFILTER]: bridge netfilter: add deferred output hooks to feature-removal-schedule [NETFILTER]: xt_pkttype: fix mismatches on locally generated packets [NETFILTER]: SNMP NAT: fix byteorder confusion [NETFILTER]: conntrack: fix SYSCTL=n compile [NETFILTER]: nf_queue: handle NF_STOP and unknown verdicts in nf_reinject [NETFILTER]: H.323 helper: fix possible NULL-ptr dereference
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Arjan van de Ven authored
The patch below moves the cpu hotplugging higher up in the cpufreq layering; this is needed to avoid recursive taking of the cpu hotplug lock and to otherwise detangle the mess. The new rules are: 1. you must do lock_cpu_hotplug() around the following functions: __cpufreq_driver_target __cpufreq_governor (for CPUFREQ_GOV_LIMITS operation only) __cpufreq_set_policy 2. governer methods (.governer) must NOT take the lock_cpu_hotplug() lock in any way; they are called with the lock taken already 3. if your governer spawns a thread that does things, like calling __cpufreq_driver_target, your thread must honor rule #1. 4. the policy lock and other cpufreq internal locks nest within the lock_cpu_hotplug() lock. I'm not entirely happy about how the __cpufreq_governor rule ended up (conditional locking rule depending on the argument) but basically all callers pass this as a constant so it's not too horrible. The patch also removes the cpufreq_governor() function since during the locking audit it turned out to be entirely unused (so no need to fix it) The patch works on my testbox, but it could use more testing (otoh... it can't be much worse than the current code) Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Tetsuo Handa authored
From: Tetsuo Handa from-linux-kernel@i-love.sakura.ne.jp The recvmsg() for raw socket seems to return random u16 value from the kernel stack memory since port field is not initialized. But I'm not sure this patch is correct. Does raw socket return any information stored in port field? [ BSD defines RAW IP recvmsg to return a sin_port value of zero. This is described in Steven's TCP/IP Illustrated Volume 2 on page 1055, which is discussing the BSD rip_input() implementation. ] Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 25 Jul, 2006 11 commits
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Alexey Kuznetsov authored
IP multicast route code was reusing an skb which causes use after free and double free. From: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Note, it is real skb_clone(), not alloc_skb(). Equeued skb contains the whole half-prepared netlink message plus room for the rest. It could be also skb_copy(), if we want to be puristic about mangling cloned data, but original copy is really not going to be used. Acked-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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Michael Chan authored
Update version to 3.63. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Michael Chan authored
Handle dev_alloc_skb() failures when initializing the RX rings. Without proper handling, the driver will crash when using a partial ring. Thanks to Stephane Doyon <sdoyon@max-t.com> for reporting the bug and providing the initial patch. Howie Xu <howie@vmware.com> also reported the same issue. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Michael Chan authored
Add tg3_restart_hw() to handle failures when re-initializing the device. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jens Axboe authored
The CIC_SEEKY() test really wants to use the minimum of either: - 2 msecs (not jiffies) - or, the pending slice time So code it like that. Signed-off-by: Jens Axboe <axboe@suse.de>
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Milton Miller authored
It should be toggling the same bit on and off, fix it up. Signed-off-by: Jens Axboe <axboe@suse.de>
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Jens Axboe authored
We need to postpone the queue startup until after the softirq handler has actually finished some requests, otherwise we could be racing with cciss_softirq_done() and not actually restart the queue handling. Signed-off-by: Jens Axboe <axboe@suse.de>
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Guillaume Chazarain authored
Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
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Guillaume Chazarain authored
Clear the accumulated junk in IP6CB when starting to handle an IPV6 packet. Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
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Patrick McHardy authored
After the recent problems with all the SCTP stuff it seems reasonable to mark this as experimental. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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Patrick McHardy authored
Add bridge netfilter deferred output hooks to feature-removal-schedule and disable them by default. Until their removal they will be activated by the physdev match when needed. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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