- 14 2月, 2008 20 次提交
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由 Marc Gauthier 提交于
We also need to relocate the debug vector if in RAM. Signed-off-by: NMarc Gauthier <marc@tensilica.com>
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由 Chris Zankel 提交于
The compiler get's sometimes to smart and doesn't reread the counter registers and the kernel doesn't schedule until the counter wraps around. Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Chris Zankel 提交于
We will never (need to) support signal handling coming from a double exception. There are too many things that could go wrong and delivering signals is not the fastest method for IPC, anyway. Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Chris Zankel 提交于
We need to use vmalloc_exec for module loading. Also remove the definitions MODULE_START and MODULE_END, which wasn't used, and increase the VMALLOC memory range accordingly. Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Marc Gauthier 提交于
Avoids compiler warning. Signed-off-by: NMarc Gauthier <marc@tensilica.com>
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由 Chris Zankel 提交于
Signed-off-by: NMarc Gauthier <marc@tensilica.com> Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Chris Zankel 提交于
Register a2 is saved in depc but wasn't getting restored before returning from _spill_registers when there weren't any registers to spill. The mask to cut the top bit from the rotated WINDOWMASK register was also one bit short. Signed-off-by: NCHris Zankel <chris@zankel.net>
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由 Marc Gauthier 提交于
Move boot-redboot load address from 0xD0200000 to 0xD1000000 to make space for larger kernel images, in particular those with an embedded initramfs filesystem. Also properly set the ELF start address in boot-elf images so that PC need not be set manually when loading them using GDB. Signed-off-by: NMarc Gauthier <marc@tensilica.com>
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由 Chris Zankel 提交于
Remove oldmask from the sigcontext structure. Also update wmask and windowstart when we flush the AR registers to stack. Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Chris Zankel 提交于
Remove additional registers from the ELF gregset structure that are only used by the kernel or are not required or invalid in user-space. The ar registers are always aligned to a windowbase value of 0, and the WB register is always assumed to be 0. Increase the size of the structure to 128 entries. This will provide enough space in future. Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Chris Zankel 提交于
Set the execution bit in the temporary TLB when we flush the instruction cache. Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Chris Zankel 提交于
We dangerously re-used an input operand to an asm macro without defining a constraint. By defining a separate output operand (instead of input/output operand), the compiler is more flexible during register allocation. Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Marc Gauthier 提交于
The simcall asm macro assumes Windowed ABI parameter passing in registers, and doesn't work if its containing function gets inlined. This fix prevents that from happening. Signed-off-by: NMarc Gauthier <marc@tensilica.com>
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由 Chris Zankel 提交于
The TLB entry for the user address doesn't exist at the time we want to flush the caches, so use the page address. Note that processor configurations with cache-aliasing issues are treated separately. Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Chris Zankel 提交于
The argument list for ctor function element in the kmem_cache structure has changed. Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Chris Zankel 提交于
Create arch/xtensa/platforms/ directory to concentrate all platforms under that subdirectory and moves the ISS platform to that directory. Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Chris Zankel 提交于
Xtensa requires separate .literal section for each .text section. Adding addition init sections for cpuinit, meminit, and devinit, broke the Xtensa linker script, so, add these literal sections manually for now. Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Chris Zankel 提交于
This bug was introduced in 2f569afd. (CONFIG_HIGHPTE vs. sub-page page tables) Signed-off-by: NChris Zankel <chris@zankel.net>
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由 Adrian Bunk 提交于
Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NChristian Zankel <chris@zankel.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
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由 Chris Zankel 提交于
Signed-off-by: NLucas Woods <woodzy@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NChristian Zankel <chris@zankel.net>
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- 12 2月, 2008 20 次提交
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由 Linus Torvalds 提交于
Even if we don't want to register the WMI driver, we should initialize the wmi_blocks list to be empty, since we don't want the wmi helper functions to oops just because that basic list has not even been set up. With this, "find_guid()" will happily return "not found" rather than oopsing all over the place, and the callers will then just automatically return false or AE_NOT_FOUND as appropriate. Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Roland McGrath 提交于
The makefile magic for installing the 32-bit vdso images on disk had a little error. A single-line change would fix that bug, but this does a little more to reduce the error-prone duplication of this bit of makefile variable magic. Signed-off-by: NRoland McGrath <roland@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 KOSAKI Motohiro 提交于
Kosaki Motohito noted that "numactl --interleave=all ..." failed in the presence of memoryless nodes. This patch attempts to fix that problem. Some background: numactl --interleave=all calls set_mempolicy(2) with a fully populated [out to MAXNUMNODES] nodemask. set_mempolicy() [in do_set_mempolicy()] calls contextualize_policy() which requires that the nodemask be a subset of the current task's mems_allowed; else EINVAL will be returned. A task's mems_allowed will always be a subset of node_states[N_HIGH_MEMORY] i.e., nodes with memory. So, a fully populated nodemask will be declared invalid if it includes memoryless nodes. NOTE: the same thing will occur when running in a cpuset with restricted mem_allowed--for the same reason: node mask contains dis-allowed nodes. mbind(2), on the other hand, just masks off any nodes in the nodemask that are not included in the caller's mems_allowed. In each case [mbind() and set_mempolicy()], mpol_check_policy() will complain [again, resulting in EINVAL] if the nodemask contains any memoryless nodes. This is somewhat redundant as mpol_new() will remove memoryless nodes for interleave policy, as will bind_zonelist()--called by mpol_new() for BIND policy. Proposed fix: 1) modify contextualize_policy logic to: a) remember whether the incoming node mask is empty. b) if not, restrict the nodemask to allowed nodes, as is currently done in-line for mbind(). This guarantees that the resulting mask includes only nodes with memory. NOTE: this is a [benign, IMO] change in behavior for set_mempolicy(). Dis-allowed nodes will be silently ignored, rather than returning an error. c) fold this code into mpol_check_policy(), replace 2 calls to contextualize_policy() to call mpol_check_policy() directly and remove contextualize_policy(). 2) In existing mpol_check_policy() logic, after "contextualization": a) MPOL_DEFAULT: require that in coming mask "was_empty" b) MPOL_{BIND|INTERLEAVE}: require that contextualized nodemask contains at least one node. c) add a case for MPOL_PREFERRED: if in coming was not empty and resulting mask IS empty, user specified invalid nodes. Return EINVAL. c) remove the now redundant check for memoryless nodes 3) remove the now redundant masking of policy nodes for interleave policy from mpol_new(). 4) Now that mpol_check_policy() contextualizes the nodemask, remove the in-line nodes_and() from sys_mbind(). I believe that this restores mbind() to the behavior before the memoryless-nodes patch series. E.g., we'll no longer treat an invalid nodemask with MPOL_PREFERRED as local allocation. [ Patch history: v1 -> v2: - Communicate whether or not incoming node mask was empty to mpol_check_policy() for better error checking. - As suggested by David Rientjes, remove the now unused cpuset_nodes_subset_current_mems_allowed() from cpuset.h v2 -> v3: - As suggested by Kosaki Motohito, fold the "contextualization" of policy nodemask into mpol_check_policy(). Looks a little cleaner. ] Signed-off-by: NLee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Tested-by: NKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6由 Linus Torvalds 提交于
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Fix build for sim_defconfig
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由 Jonathan Corbet 提交于
So I spent a while pounding my head against my monitor trying to figure out the vmsplice() vulnerability - how could a failure to check for *read* access turn into a root exploit? It turns out that it's a buffer overflow problem which is made easy by the way get_user_pages() is coded. In particular, "len" is a signed int, and it is only checked at the *end* of a do {} while() loop. So, if it is passed in as zero, the loop will execute once and decrement len to -1. At that point, the loop will proceed until the next invalid address is found; in the process, it will likely overflow the pages array passed in to get_user_pages(). I think that, if get_user_pages() has been asked to grab zero pages, that's what it should do. Thus this patch; it is, among other things, enough to block the (already fixed) root exploit and any others which might be lurking in similar code. I also think that the number of pages should be unsigned, but changing the prototype of this function probably requires some more careful review. Signed-off-by: NJonathan Corbet <corbet@lwn.net> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: mlx4_core: Fix build break (missing include)
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由 Pekka Enberg 提交于
Matt is already the maintainer of SLOB which is one of the "SLAB" allocators in the kernel so add him to MAINTAINERS. Signed-off-by: NPekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev由 Linus Torvalds 提交于
* 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: sata_mv: platform driver allocs dma without create pata_ninja32: setup changes pata_legacy: typo fix pata_amd: Note in the module description it handles Nvidia sata_mv: fix loop with last port libata: ignore deverr on SETXFER if mode is configured pata_via: fix SATA cable detection on cx700
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由 Andi Kleen 提交于
This avoids warnings with unreferenced variables in the !NUMA case. Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Olof Johansson 提交于
Commit 313abe55 ("mlx4_core: For 64-bit systems, vmap() kernel queue buffers") caused this to pop up on powerpc allyesconfig, looks like a missing include file: drivers/net/mlx4/alloc.c: In function 'mlx4_buf_alloc': drivers/net/mlx4/alloc.c:162: error: implicit declaration of function 'vmap' drivers/net/mlx4/alloc.c:162: error: 'VM_MAP' undeclared (first use in this function) drivers/net/mlx4/alloc.c:162: error: (Each undeclared identifier is reported only once drivers/net/mlx4/alloc.c:162: error: for each function it appears in.) drivers/net/mlx4/alloc.c:162: warning: assignment makes pointer from integer without a cast drivers/net/mlx4/alloc.c: In function 'mlx4_buf_free': drivers/net/mlx4/alloc.c:187: error: implicit declaration of function 'vunmap' Signed-off-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NRoland Dreier <rolandd@cisco.com>
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由 Tony Luck 提交于
Commit bdc80787 broke the build for this config because the sim_defconfig selects CONFIG_HZ=250 but include/asm-ia64/param.h has an ifdef for the simulator to force HZ to 32. So we ended up with a kernel/timeconst.h set for HZ=250 ... which then failed the check for the right HZ value and died with: Drop the #ifdef magic from param.h and make force CONFIG_HZ=32 directly for the simulator. Signed-off-by: NTony Luck <tony.luck@intel.com>
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由 Byron Bradley 提交于
When the sata_mv driver is used as a platform driver, mv_create_dma_pools() is never called so it fails when trying to alloc in mv_pool_start(). Signed-off-by: NByron Bradley <byron.bbradley@gmail.com> Acked-by: NMark Lord <mlord@pobox.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Alan Cox 提交于
Forcibly set more of the configuration at init time. This seems to fix at least one problem reported. We don't know what most of these bits do, but we do know what windows stuffs there. Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Alan Cox 提交于
Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Alan Cox 提交于
This has confused a few people so fix it Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Yinghai Lu 提交于
commit f351b2d6 sata_mv: Support SoC controllers cause panic: scsi 4:0:0:0: Direct-Access ATA HITACHI HDS7225S V44O PQ: 0 ANSI: 5 sd 4:0:0:0: [sde] 488390625 512-byte hardware sectors (250056 MB) sd 4:0:0:0: [sde] Write Protect is off sd 4:0:0:0: [sde] Mode Sense: 00 3a 00 00 sd 4:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 4:0:0:0: [sde] 488390625 512-byte hardware sectors (250056 MB) sd 4:0:0:0: [sde] Write Protect is off sd 4:0:0:0: [sde] Mode Sense: 00 3a 00 00 sd 4:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sde:<1>BUG: unable to handle kernel NULL pointer dereference at 000000000000001a IP: [<ffffffff806262c7>] mv_interrupt+0x21c/0x4cc PGD 0 Oops: 0000 [1] SMP CPU 3 Modules linked in: Pid: 0, comm: swapper Not tainted 2.6.24-smp-08636-g0afc2edf-dirty #26 RIP: 0010:[<ffffffff806262c7>] [<ffffffff806262c7>] mv_interrupt+0x21c/0x4cc RSP: 0000:ffff8102050bbec8 EFLAGS: 00010297 RAX: 0000000000000008 RBX: 0000000000000000 RCX: 0000000000000003 RDX: 0000000000008000 RSI: 0000000000000286 RDI: ffff8102035180e0 RBP: 0000000000000001 R08: 0000000000000003 R09: ffff8102036613e0 R10: 0000000000000002 R11: ffffffff8061474c R12: ffff8102035bf828 R13: 0000000000000008 R14: ffff81020348ece8 R15: ffffc20002cb2000 FS: 0000000000000000(0000) GS:ffff810405025700(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 000000000000001a CR3: 0000000000201000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper (pid: 0, threadinfo ffff810405094000, task ffff8102050b28c0) Stack: 000000010000000c 0002040000220400 0000001100000002 ffff81020348eda8 0000000000000001 ffff8102035f2cc0 0000000000000000 0000000000000000 0000000000000018 0000000000000000 0000000000000000 ffffffff80269ee8 Call Trace: <IRQ> [<ffffffff80269ee8>] ? handle_IRQ_event+0x25/0x53 [<ffffffff8026b393>] ? handle_fasteoi_irq+0x90/0xc8 [<ffffffff802218e2>] ? do_IRQ+0xf1/0x15f [<ffffffff8021df24>] ? default_idle+0x0/0x55 [<ffffffff8021f361>] ? ret_from_intr+0x0/0xa <EOI> [<ffffffff8023010c>] ? lapic_next_event+0x0/0xa [<ffffffff8021df55>] ? default_idle+0x31/0x55 [<ffffffff8021df50>] ? default_idle+0x2c/0x55 [<ffffffff8021df24>] ? default_idle+0x0/0x55 [<ffffffff8021e00b>] ? cpu_idle+0x92/0xb8 Code: 41 14 85 c0 89 44 24 14 0f 84 9d 02 00 00 f7 d0 01 d6 41 89 d5 89 41 14 8b 41 14 89 34 24 e9 7e 02 00 00 49 63 c5 49 8b 5c c6 48 <f6> 43 1a 80 4c 8b a3 20 37 00 00 0f 85 62 02 00 00 31 c9 41 83 RIP [<ffffffff806262c7>] mv_interrupt+0x21c/0x4cc RSP <ffff8102050bbec8> CR2: 000000000000001a ---[ end trace 2583b5f7a5350584 ]--- Kernel panic - not syncing: Aiee, killing interrupt handler! last_port already include port0 base. this patch change use last_port directly, and move pp assignment later. Signed-off-by: NYinghai Lu <yinghai.lu@sun.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
Some controllers (VIA CX700) raise device error on SETXFER even after mode configuration succeeded. Update ata_dev_set_mode() such that device error is ignored if transfer mode is configured correctly. To implement this, device is revalidated even after device error on SETXFER. This fixes kernel bugzilla bug 8563. Signed-off-by: NTejun Heo <htejun@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Tejun Heo 提交于
The first port of cx700 is SATA. Fix cable detection. Signed-off-by: NTejun Heo <htejun@gmail.com> Signed-off-by: NJeff Garzik <jeff@garzik.org>
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由 Thomas Gleixner 提交于
pageattr-test.c contains a noisy debug printk that people reported. The condition under which it prints (randomly tapping into a mem_map[] hole and not being able to c_p_a() there) is valid behavior and not interesting to report. Remove it. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Acked-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: kbuild: fix make V=1
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