- 06 Feb, 2007 9 commits
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Jan Beulich authored
- add proper __init decoration to swiotlb's init code (and the code calling it, where not already the case) - replace uses of 'unsigned long' with dma_addr_t where appropriate - do miscellaneous simplicfication and cleanup Signed-off-by:
Jan Beulich <jbeulich@novell.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Tony Luck <tony.luck@intel.com>
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Jan Beulich authored
Convert all phys_to_virt/virt_to_phys uses to bus_to_virt/virt_to_bus, as is what is meant and what is needed in (at least) some virtualized environments like Xen. Signed-off-by:
Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by:
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Jan Beulich authored
This patch fixes - marking I-cache clean of pages DMAed to now only done for IA64 - broken multiple inclusion in include/asm-x86_64/swiotlb.h - missing call to mark_clean in swiotlb_sync_sg() - a (perhaps only theoretical) issue in swiotlb_dma_supported() when io_tlb_end is exactly at the end of memory Signed-off-by:
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Fenghua Yu authored
getcpu system call returns cpu# and node# on which this system call and its caller are running. This patch hooks up its implementation on IA64. Signed-off-by:
Fenghua Yu <fenghua.yu@intel.com> Signed-off-by:
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Bob Picco authored
Eliminate arch specific memory_present call ia64 NUMA by utilizing sparse_memory_present_with_active_regions. Acked-by:
Mel Gorman <mel@csn.ul.ie> Signed-off-by:
Bob Picco <bob.picco@hp.com> Signed-off-by:
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George Beshers authored
On the ia64 architecture only this patch upgrades show_mem() for sparse memory to be the same as it was for discontig memory. It has been shown to work on NUMA and flatmem architectures. Signed-off-by:
George Beshers <gbeshers@sgi.com> Signed-off-by:
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Jan Beulich authored
Add missing exports to allow several drivers to be built as module with CONFIG_IA64_HP_ZX1_SWIOTLB. Signed-off-by:
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Kirill Korotaev authored
It does not return NULL when arg is NULL. Signed-off-by:
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by:
Kirill Korotaev <dev@openvz.org> Signed-off-by:
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Kirill Korotaev authored
Occasionally the FSYS_RETURN patch list can have an odd length, causing other data structures to get out of alignment. In OpenVZ it is odd and we get misaligned kernel image, which does not boot. Signed-off-by:
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- 05 Feb, 2007 17 commits
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Bob Picco authored
While pursuing and unrelated issue with 64Mb granules I noticed a problem related to inconsistent use of add_active_range. There doesn't appear any reason to me why FLATMEM versus DISCONTIG_MEM should register memory to add_active_range with different code. So I've changed the code into a common implementation. The other subtle issue fixed by this patch was calling add_active_range in count_node_pages before granule aligning is performed. We were lucky with 16MB granules but not so with 64MB granules. count_node_pages has reserved regions filtered out and as a consequence linked kernel text and data aren't covered by calls to count_node_pages. So linked kernel regions wasn't reported to add_active_regions. This resulted in free_initmem causing numerous bad_page reports. This won't occur with this patch because now all known memory regions are reported by register_active_ranges. Acked-by:
Simon Horman <horms@verge.net.au> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Jan Beulich authored
Don't force CONFIG_SWIOTLB on when not actually needed (i.e. HP_ZX1 and SGI_SN2). Signed-off-by:
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Russ Anderson authored
The shub2 error interrupt handler must check for TIO errors. Signed-off-by: Russ Anderson (rja@sgi.com) Signed-off-by: -
Alex Williamson authored
This function doesn't exist. Signed-off-by:
Alex Williamson <alex.williamson@hp.com> Signed-off-by:
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Alex Williamson authored
When we offline a CPU, migrate_irqs() tries to determine whether the affinity bits of the IRQ descriptor match any of the remaining online CPUs. If not, it fixes up the interrupt to point somewhere else. Unfortunately, if an IRQ is unregistered the IRQ descriptor may still have affinity to the CPU being offlined, but the no_irq_chip handler doesn't provide a set_affinity function. This causes us to hit the WARN_ON in migrate_irqs(). The easiest solution seems to be setting all the bits in the affinity mask when the last interrupt is removed from the vector. I hit this on an older kernel with Xen/ia64 using driver domains (so it probably needs more testing on upstream). Xen essentially uses the bind/unbind interface in sysfs to unregister a device from a driver and thus unregister the interrupt. Signed-off-by:
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Len Brown authored
All IA64 systems except IA64_HP_SIM include ACPI and PCI. So prevent IA64 Kconfigs that try to do irritating things like building PCI without building ACPI. Signed-off-by:
Len Brown <len.brown@intel.com> Signed-off-by:
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Bernhard Walle authored
This patch fixes a NULL-pointer dereference in ia64_machine_kexec(). The variable ia64_kimage is set in machine_kexec_prepare() which is called from sys_kexec_load(). If kdump wasn't configured before, ia64_kimage is NULL. machine_kdump_on_init() passes ia64_kimage() to machine_kexec() which assumes a valid value. The patch also adds a few sanity checks for the image to simplify debugging of similar problems in future. Signed-off-by:
Bernhard Walle <bwalle@suse.de> Signed-off-by:
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bibo,mao authored
I encountered one problem when running ptrace test case the situation is this: traced process's syscall parameter needs to be accessed, but for sys_clone system call with clone_flag (CLONE_VFORK | CLONE_VM | SIGCHLD) parameter. This syscall's parameter accessing result is wrong. The reason is that vforked child process mm point is the same, but tgid is different. Without this patch find_thread_for_addr will return vforked process if vforked process is also stopped, but not the thread which calls vfork syscall. Signed-off-by: -
Aron Griffis authored
Some patches have turned up on xen-devel recently to convert strcpy() to safer alternatives and so forth. While reviewing those patches I noticed that the features string building could be cleaned up. This patch uses snprintf() instead of strcpy() and direct character pointer manipulation. It makes the features string building safe and gets rid of the special case for features output in show_cpuinfo() Additionally I removed the (int) cast of ARRAY_SIZE, which seems to serve no purpose. Signed-off-by:
Aron Griffis <aron@hp.com> Signed-off-by:
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bibo,mao authored
As is pointed out in http://www.gelato.org/community/view_linear.php?id=1_1036&from=authors&value=Ian%20Wienand#1_1039, if single step on break instruction, the break fault has higher priority than the single-step trap. When the break fault handler is entered, it advances the IP by 1 instruction so break instruction single-stepping is skipped, actually it is next instruction which is single stepped. This patch modifies this, it adds TIF_SINGLESTEP bit for thread flags, and generate a fake sigtrap when single stepping break instruction. Test case in attachment can verify this. Any comments is welcome. Signed-off-by:
bibo, mao <bibo.mao@intel.com> Signed-off-by:
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Horms authored
This moves the ia64 implementation of machine_shutdown() from machine_kexec.c to process.c, which is in keeping with the implelmentation on other architectures, and seems like a much more appropriate home for it. Signed-off-by:
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Horms authored
Signed-off-by:
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Horms authored
Remove the Remove inline declaration of efi_get_pal_addr() as it is declared in linux/efi.h. Signed-Off-By:
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Horms authored
linux/uaccess.h was being included, but it seems that really the following includes are needed. asm/page.h: for __va() and PAGE_SHIFT asm/uaccess.h: for copy_to_user() I guess that linux/uaccess.h pulls in both asm/page.h and asm/uaccess.h. I notices this while backporting the code to xen's linux-2.6.16.33, which does not have linux/uaccess.h. I'm posting it as I think it is a correct, though somewhat cosmetic fix. Signed-off-by:
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Horms authored
Fix a typo in the saved_max_pfn description in contig.c Signed-off-by:
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Horms authored
Set saved_max_pfn when discontig memory is in use. This sets up saved_max_pfn when disctontig memory is in use. This mirrors the code for contig memory. This patch does not entirely solve the problem of making vmcore work, however it does appear to be neccessary. Please consider applying. Signed-off-by:
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Magnus Damm authored
Kexec support for 2.6.20 on ia64 does not build properly using a config made up by CONFIG_SMP=n and CONFIG_HOTPLUG_CPU=n: Signed-off-by:
Magnus Damm <magnus@valinux.co.jp> Acked-by:
Jay Lan <jlan@sgi.com> Signed-off-by:
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- 04 Feb, 2007 3 commits
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Linus Torvalds authored
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Frédéric Riss authored
When calling into the EFI firmware, the parameters need to be passed on the stack. The recent change to use -mregparm=3 breaks x86 EFI support. This patch is needed to allow the new Intel-based Macs to suspend to ram (efi.get_time is called during the suspend phase). Signed-off-by:
Frederic Riss <frederic.riss@gmail.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Al Viro authored
That code doesn't do what its author apparently thought it would do... Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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- 03 Feb, 2007 11 commits
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] sd: udev accessing an uninitialized scsi_disk field results in a crash [SCSI] st: A MTIOCTOP/MTWEOF within the early warning will cause the file number to be incorrect [SCSI] qla4xxx: bug fixes [SCSI] Fix scsi_add_device() for async scanning
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Jeff Garzik authored
x86-64 is missing these: Signed-off-by:
Jeff Garzik <jeff@garzik.org> Signed-off-by:
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John Keller authored
The SN Altix platform does not conform to the IOSAPIC IRQ routing model. Add code in acpi_unregister_gsi() to check if (acpi_irq_model == ACPI_IRQ_MODEL_PLATFORM) and return. Due to an oversight, this code was not added previously when similar code was added to acpi_register_gsi(). http://marc.theaimsgroup.com/?l=linux-acpi&m=116680983430121&w=2Signed-off-by:
John Keller <jpk@sgi.com> Acked-by:
Len Brown <lenb@kernel.org> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by:
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Andrew Morton authored
Andrew Vasquez is reporting as-iosched oopses and a 65% throughput slowdown due to the recent special-casing of direct-io against blockdevs. We don't know why either of these things are occurring. The patch minimally reverts us back to the 2.6.19 code for a 2.6.20 release. Cc: Andrew Vasquez <andrew.vasquez@qlogic.com> Cc: Ken Chen <kenchen@google.com> Signed-off-by:
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Mike Frysinger authored
We went and named them __NR_sys_foo instead of __NR_foo. It may be too late to change this, but we can at least add the proper names now. Signed-off-by:
Mike Frysinger <vapier@gentoo.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by:
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Peter Korsgaard authored
smc911x_phy_configure's error handling unconditionally unlocks the spinlock even if it wasn't locked. Patch fixes it. Signed-off-by:
Peter Korsgaard <jacmet@sunsite.dk> Cc: Jeff Garzik <jeff@garzik.org> Cc: <stable@kernel.org> Signed-off-by:
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Magnus Damm authored
This patch fixes up ia64 kexec support for HP rx2620 hardware. It does this by skipping migration of already disabled irqs. This is most likely a problem on other ia64 platforms as well, but I've only been able to reproduce it on one machine so far. The full story is that handle_bad_irq() gets invoked before starting the new kernel without this patch. This seems to happen when fixup_irqs() calls generic_handle_irq() on already migrated (and disabled) irqs. So by avoiding migration of disabled irqs we stay away of handle_bad_irq(). The code has been tested on three different ia64 machines, all with good results. It is possible to trigger the same bug by offlining a processor using echo 0 > /sys/devices/system/cpu/cpuX/online. More detailed information is available in the following mail thread: http://lists.osdl.org/pipermail/fastboot/2007-January/thread.html#5774Signed-off-by:
Zou, Nanhai <nanhai.zou@intel.com> Acked-by:
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Ken Chen authored
An AIO bug was reported that sleeping function is being called in softirq context: BUG: warning at kernel/mutex.c:132/__mutex_lock_common() Call Trace: [<a000000100577b00>] __mutex_lock_slowpath+0x640/0x6c0 [<a000000100577ba0>] mutex_lock+0x20/0x40 [<a0000001000a25b0>] flush_workqueue+0xb0/0x1a0 [<a00000010018c0c0>] __put_ioctx+0xc0/0x240 [<a00000010018d470>] aio_complete+0x2f0/0x420 [<a00000010019cc80>] finished_one_bio+0x200/0x2a0 [<a00000010019d1c0>] dio_bio_complete+0x1c0/0x200 [<a00000010019d260>] dio_bio_end_aio+0x60/0x80 [<a00000010014acd0>] bio_endio+0x110/0x1c0 [<a0000001002770e0>] __end_that_request_first+0x180/0xba0 [<a000000100277b90>] end_that_request_chunk+0x30/0x60 [<a0000002073c0c70>] scsi_end_request+0x50/0x300 [scsi_mod] [<a0000002073c1240>] scsi_io_completion+0x200/0x8a0 [scsi_mod] [<a0000002074729b0>] sd_rw_intr+0x330/0x860 [sd_mod] [<a0000002073b3ac0>] scsi_finish_command+0x100/0x1c0 [scsi_mod] [<a0000002073c2910>] scsi_softirq_done+0x230/0x300 [scsi_mod] [<a000000100277d20>] blk_done_softirq+0x160/0x1c0 [<a000000100083e00>] __do_softirq+0x200/0x240 [<a000000100083eb0>] do_softirq+0x70/0xc0 See report: http://marc.theaimsgroup.com/?l=linux-kernel&m=116599593200888&w=2 flush_workqueue() is not allowed to be called in the softirq context. However, aio_complete() called from I/O interrupt can potentially call put_ioctx with last ref count on ioctx and triggers bug. It is simply incorrect to perform ioctx freeing from aio_complete. The bug is trigger-able from a race between io_destroy() and aio_complete(). A possible scenario: cpu0 cpu1 io_destroy aio_complete wait_for_all_aios { __aio_put_req ... ctx->reqs_active--; if (!ctx->reqs_active) return; } ... put_ioctx(ioctx) put_ioctx(ctx); __put_ioctx bam! Bug trigger! The real problem is that the condition check of ctx->reqs_active in wait_for_all_aios() is incorrect that access to reqs_active is not being properly protected by spin lock. This patch adds that protective spin lock, and at the same time removes all duplicate ref counting for each kiocb as reqs_active is already used as a ref count for each active ioctx. This also ensures that buggy call to flush_workqueue() in softirq context is eliminated. Signed-off-by:"Ken Chen" <kenchen@google.com> Cc: Zach Brown <zach.brown@oracle.com> Cc: Suparna Bhattacharya <suparna@in.ibm.com> Cc: Benjamin LaHaise <bcrl@kvack.org> Cc: Badari Pulavarty <pbadari@us.ibm.com> Cc: <stable@kernel.org> Acked-by:
Jeff Moyer <jmoyer@redhat.com> Signed-off-by:
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Adrian Bunk authored
Fix this by letting NF_CONNTRACK_H323 depend on (IPV6 || IPV6=n). Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Patrick McHardy authored
CC net/netfilter/nf_conntrack_netlink.o net/netfilter/nf_conntrack_netlink.c: In function 'ctnetlink_conntrack_event': net/netfilter/nf_conntrack_netlink.c:392: error: 'struct nf_conn' has no member named 'mark' make[3]: *** [net/netfilter/nf_conntrack_netlink.o] Error 1 Signed-off-by:
Patrick McHardy <kaber@trash.net> Signed-off-by:
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Nagendra Singh Tomar authored
sd_probe() calls class_device_add() even before initializing the sdkp->device variable. class_device_add() eventually results in the user mode udev program to be called. udev program can read the the allow_restart attribute of the newly created scsi device. This is resulting in a crash as the show function for allow_restart (i.e sd_show_allow_restart) returns the attribute value by reading the sdkp->device->allow_restart variable. As the sdkp->device is not initialized before calling the user mode hotplug helper, this results in a crash. The patch below solves it by calling class_device_add() only after the necessary fields in the scsi_disk structure are initialized properly. Signed-off-by:
Nagendra Singh Tomar <nagendra_tomar@adaptec.com> Signed-off-by:
James Bottomley <James.Bottomley@SteelEye.com>
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