- 04 Apr, 2008 10 commits
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Thomas Gleixner authored
The commits: commit 37a47db8 Author: Balaji Rao <balajirrao@gmail.com> Date: Wed Jan 30 13:30:03 2008 +0100 x86: assign IRQs to HPET timers, fix and commit e3f37a54 Author: Balaji Rao <balajirrao@gmail.com> Date: Wed Jan 30 13:30:03 2008 +0100 x86: assign IRQs to HPET timers have been identified to cause a regression on some platforms due to the assignement of legacy IRQs which makes the legacy devices connected to those IRQs disfunctional. Revert them. This fixes http://bugzilla.kernel.org/show_bug.cgi?id=10382Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Thomas Gleixner authored
We already catch most of the TSC problems by sanity checks, but there is a subtle bug which has been in the code for ever. This can cause time jumps in the range of hours. This was reported in: http://lkml.org/lkml/2007/8/23/96 and http://lkml.org/lkml/2008/3/31/23 I was able to reproduce the problem with a gettimeofday loop test on a dual core and a quad core machine which both have sychronized TSCs. The TSCs seems not to be perfectly in sync though, but the kernel is not able to detect the slight delta in the sync check. Still there exists an extremly small window where this delta can be observed with a real big time jump. So far I was only able to reproduce this with the vsyscall gettimeofday implementation, but in theory this might be observable with the syscall based version as well. CPU 0 updates the clock source variables under xtime/vyscall lock and CPU1, where the TSC is slighty behind CPU0, is reading the time right after the seqlock was unlocked. The clocksource reference data was updated with the TSC from CPU0 and the value which is read from TSC on CPU1 is less than the reference data. This results in a huge delta value due to the unsigned subtraction of the TSC value and the reference value. This algorithm can not be changed due to the support of wrapping clock sources like pm timer. The huge delta is converted to nanoseconds and added to xtime, which is then observable by the caller. The next gettimeofday call on CPU1 will show the correct time again as now the TSC has advanced above the reference value. To prevent this TSC specific wreckage we need to compare the TSC value against the reference value and return the latter when it is larger than the actual TSC value. I pondered to mark the TSC unstable when the readout is smaller than the reference value, but this would render an otherwise good and fast clocksource unusable without a real good reason. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Mark McLoughlin authored
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Cc: xen-devel@lists.xensource.com Cc: Mark McLoughlin <markmc@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Mark McLoughlin authored
i.e. with this simple test case: int fd = open("/dev/zero", O_RDONLY); munmap(mmap((void *)0x40000000, 0x1000_LEN, PROT_READ, MAP_PRIVATE, fd, 0), 0x1000); close(fd); we currently get: kernel BUG at arch/x86/xen/enlighten.c:678! ... EIP is at xen_release_pt+0x79/0xa9 ... Call Trace: [<c041da25>] ? __pmd_free_tlb+0x1a/0x75 [<c047a192>] ? free_pgd_range+0x1d2/0x2b5 [<c047a2f3>] ? free_pgtables+0x7e/0x93 [<c047b272>] ? unmap_region+0xb9/0xf5 [<c047c1bd>] ? do_munmap+0x193/0x1f5 [<c047c24f>] ? sys_munmap+0x30/0x3f [<c0408cce>] ? syscall_call+0x7/0xb ======================= and xen complains: (XEN) mm.c:2241:d4 Mfn 1cc37 not pinned Further details at: https://bugzilla.redhat.com/436453Signed-off-by: Mark McLoughlin <markmc@redhat.com> Cc: xen-devel@lists.xensource.com Cc: Mark McLoughlin <markmc@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Mark McLoughlin authored
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Cc: xen-devel@lists.xensource.com Cc: Mark McLoughlin <markmc@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Pavel Machek authored
Fix obsolete printks in aperture-64. We used not to handle missing agpgart, but we handle it okay now. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Michael Abd-El-Malek authored
fix memory corruption and crash due to mis-sized grant table. A PV OS has two grant table data structures: the grant table itself and a free list. The free list is composed of an array of pages, which grow dynamically as the guest OS requires more grants. While the grant table contains 8-byte entries, the free list contains 4-byte entries. So we have half as many pages in the free list than in the grant table. There was a bug in the free list allocation code. The free list was indexed as if it was the same size as the grant table. But it's only half as large. So memory got corrupted, and I was seeing crashes in the slab allocator later on. Taken from: http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/4018c0da3360Signed-off-by: Michael Abd-El-Malek <mabdelmalek@cmu.edu> Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ravikiran G Thirumalai authored
25-rc* stopped working with CONFIG_X86_VSMP on vSMP machines. Looks like the vsmp irq ops got accidentally removed during merge of x86_64 pvops in 2.6.25. -- commit 6abcd98f removed vsmp irq ops. Tested with both CONFIG_X86_VSMP and without CONFIG_X86_VSMP, on vSMP and non vSMP x86_64 machines. Please apply. Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
right now if there's no CPU support for nmi_watchdog=2 we'll just refuse it silently. print a useful warning. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
implement nmi_watchdog=2 on this class of CPUs: cpu family : 15 model : 6 model name : Intel(R) Pentium(R) D CPU 3.00GHz the watchdog's ->setup() method is safe anyway, so if the CPU cannot support it we'll bail out safely. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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- 03 Apr, 2008 14 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6: selinux: prevent rentry into the FS
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Roland McGrath authored
This avoids using wrmsr on MSR_IA32_DEBUGCTLMSR when it's not needed. No wrmsr ever needs to be done if noone has ever used block stepping. Without this change, using ptrace on 2.6.25 on an x86 KVM guest will tickle KVM's missing support for the MSR and crash the guest kernel. Though host KVM is the buggy one, this makes for a regression in the guest behavior from 2.6.24->2.6.25 that we can easily avoid. I also corrected some bad whitespace. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: appletouch - add product IDs for the 4th generation MacBooks
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds authored
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Fix MPC5200 (not B!) device tree so FEC ethernet works [POWERPC] mpc5200: Amalgamated DTS fixes and updates [POWERPC] Fix rtas_flash procfs interface [POWERPC] Fix deadlock with mmu_hash_lock in hash_page_sync [POWERPC] Fix iSeries hard irq enabling regression [POWERPC] Fix CPM2 SCC1 clock initialization. [POWERPC] Fix defconfigs so we dont set both GENRTC and RTCLIB [POWERPC] fsldma: Use compatiable binding as spec [POWERPC] sata_fsl: reduce compatibility to fsl,pq-sata [POWERPC] 83xx: enable usb in 837x rdb and 83xx defconfigs [POWERPC] 83xx: Fix wrong USB phy type in mpc837xrdb dts
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Sven Schnelle authored
Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Sven Schnelle authored
Signed-off-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Hugh Dickins authored
The loop block driver is careful to mask __GFP_IO|__GFP_FS out of its mapping_gfp_mask, to avoid hangs under memory pressure. But nowadays it uses splice, usually going through __generic_file_splice_read. That must use mapping_gfp_mask instead of GFP_KERNEL to avoid those hangs. Signed-off-by: Hugh Dickins <hugh@veritas.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Josef Bacik authored
BUG fix. Keep us from re-entering the fs when we aren't supposed to. See discussion at http://marc.info/?t=120716967100004&r=1&w=2Signed-off-by: Josef Bacik <jbacik@redhat.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
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René Bürgel authored
This gets the FEC ethernet driver working again on the lite5200 platform. The FEC driver is also compatible with the MPC5200, not only with the MPC5200B, so this adds a suitable entry to the driver's match list. Furthermore this adds the settings for the PHY in the dts file for the Lite5200. Note, that this is not exactly the same as in the Lite5200B, because the PHY is located at f0003000:01 for the 5200, and at :00 for the 5200B. This was tested on a Lite5200 and a Lite5200B, both booted a kernel via tftp and mounted the root via nfs successfully. Signed-off-by: René Bürgel <r.buergel@unicontrol.de> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
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Bartlomiej Sieka authored
DTS updates that fix booting problems on mpc5200-based boards: - change to ethernet reg property - addition of mdio and phy nodes - removal of pci node (Motion-Pro board) Other DTS updates: - update i2c device tree nodes - add lpb bus node and flash device (without partitions defined) - add rtc i2c nodes Signed-off-by: Marian Balakowicz <m8@semihalf.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
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Maxim Shchetynin authored
Handling of the proc_dir_entry->count was changed in 2.6.24-rc5. After this change, the default value for pde->count is 1 and not 0 as before. Therefore, if we want to check whether our procfs file is already opened (already in use), we have to check if pde->count is greater than 2 rather than 1. Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com> Signed-off-by: Jens Osterkamp <jens@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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Benjamin Herrenschmidt authored
hash_page_sync() takes and releases the low level mmu hash lock in order to sync with other processors disposing of page tables. Because that lock can be needed to service hash misses triggered by interrupt handlers, taking it must be done with interrupts off. However, hash_page_sync() appears to be called with interrupts enabled, thus causing occasional deadlocks. We fix it by making sure hash_page_sync() masks interrupts while holding the lock. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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Benjamin Herrenschmidt authored
A subtle bug sneaked into iSeries recently. On this platform, we must not normally clear MSR:EE (the hardware external interrupt enable) except for short periods of time. Taking an interrupt while soft-disabled doesn't cause us to clear it for example. The iSeries kernel expects to mostly run with MSR:EE enabled at all times except in a few exception entry/exit code paths. Thus local_irq_enable() doesn't check if it needs to hard-enable as it expects this to be unnecessary on iSeries. However, hard_irq_disable() _does_ cause MSR:EE to be cleared, including on iSeries. A call to it was recently added to the context switch code, thus causing interrupts to become disabled for a long periods of time, causing the iSeries watchdog to kick in under some circumstances and other nasty things. This patch fixes it by making local_irq_enable() properly re-enable MSR:EE on iSeries. It basically removes a return statement here to make iSeries use the same code path as everybody else. That does mean that we might occasionally get spurious decrementer interrupts but I don't think that matters. Another option would have been to make hard_irq_disable() a nop on iSeries but I didn't like it much, in case we have good reasons to hard-disable. Part of the patch is fixes to make sure the hard_enabled PACA field is properly set on iSeries as it used not to be before, since it was mostly unused. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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Laurent Pinchart authored
A missing break statement in a switch caused cpm2_clk_setup() to initialize SCC2 instead of SCC1. Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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- 02 Apr, 2008 16 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: ohci: fix 2 timers to fire at jiffies + 1s USB: Allow initialization of broken keyspan serial adapters. USB: fix bug in sg initialization in usbtest USB: serial: fix regression in Visor/Palm OS module for kernels >= 2.6.24 USB: cp2101: Add identifiers for the Telegesys ETRX2USB USB: serial: ti_usb_3410_5052: Correct TUSB3410 endpoint requirements. USB: another ehci_iaa_watchdog fix
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Andrew Morton authored
A nasty compile error: In file included from security/keys/internal.h:16, from security/keys/sysctl.c:14: include/linux/key-ui.h: In function 'key_permission': include/linux/key-ui.h:51: error: invalid use of undefined type 'struct task_struct' apparently the compiler has decided that it needs to know sizeof(task_struct) so that it can add zero to a task_struct* (which is rather dumb of it). Getting task_struct in scope in these deeply-nested headers is scary-looking, so let's just remove the "+ 0". Cc: David Howells <dhowells@redhat.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mathieu Desnoyers authored
Markers do not mix well with CONFIG_PREEMPT_RCU because it uses preempt_disable/enable() and not rcu_read_lock/unlock for minimal intrusiveness. We would need call_sched and sched_barrier primitives. Currently, the modification (connection and disconnection) of probes from markers requires changes to the data structure done in RCU-style : a new data structure is created, the pointer is changed atomically, a quiescent state is reached and then the old data structure is freed. The quiescent state is reached once all the currently running preempt_disable regions are done running. We use the call_rcu mechanism to execute kfree() after such quiescent state has been reached. However, the new CONFIG_PREEMPT_RCU version of call_rcu and rcu_barrier does not guarantee that all preempt_disable code regions have finished, hence the race. The "proper" way to do this is to use rcu_read_lock/unlock, but we don't want to use it to minimize intrusiveness on the traced system. (we do not want the marker code to call into much of the OS code, because it would quickly restrict what can and cannot be instrumented, such as the scheduler). The temporary fix, until we get call_rcu_sched and rcu_barrier_sched in mainline, is to use synchronize_sched before each call_rcu calls, so we wait for the quiescent state in the system call code path. It will slow down batch marker enable/disable, but will make sure the race is gone. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Ken'ichi Ohmichi authored
Fix the problem that makedumpfile sometimes fails on x86_64 machine. This patch adds the symbol "phys_base" to a vmcoreinfo data. The vmcoreinfo data has the minimum debugging information only for dump filtering. makedumpfile (dump filtering command) gets it to distinguish unnecessary pages, and makedumpfile creates a small dumpfile. On x86_64 kernel which compiled with CONFIG_PHYSICAL_START=0x0 and CONFIG_RELOCATABLE=y, makedumpfile fails like the following: # makedumpfile -d31 /proc/vmcore dumpfile The kernel version is not supported. The created dumpfile may be incomplete. _exclude_free_page: Can't get next online node. makedumpfile Failed. # The cause is the lack of the symbol "phys_base" in a vmcoreinfo data. If the symbol "phys_base" does not exist, makedumpfile considers an x86_64 kernel as non relocatable. As the result, makedumpfile misunderstands the physical address where the kernel is loaded, and it cannot translate a kernel virtual address to physical address correctly. To fix this problem, this patch adds the symbol "phys_base" to a vmcoreinfo data. Signed-off-by: Ken'ichi Ohmichi <oomichi@mxs.nes.nec.co.jp> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: <stable@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Robert P. J. Day authored
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jiri Slaby authored
Add some locks and unlocks to some code paths. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jiri Slaby authored
Unlock two grabbed locks on some paths. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Mike Snitzer authored
NBD does not protect the nbd_device's socket from becoming NULL during receives. This closes a race with the NBD_CLEAR_SOCK ioctl (nbd-client -d) setting the nbd_device's socket to NULL right before NBD calls sock_xmit. Signed-off-by: Mike Snitzer <snitzer@gmail.com> Cc: Paul Clements <paul.clements@steeleye.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jim Meyering authored
Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Dmitri Vorobiev authored
This patch deletes a couple of superfluous word occurrences in the document Documentation/unaligned-memory-access.txt. Thanks to Sebastien Dugue for the remark about English usage. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Ivan Kokshaysky authored
Make dma_alloc_coherent respect gfp flags (__GFP_COMP is one that matters). Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Tested-by: Michael Cree <mcree@orcon.net.nz> Cc: Richard Henderson <rth@twiddle.net> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Marc Pignat authored
Strange chars appear on the serial port when a printk and a printf happens at the same time. This is caused by the pdc sending chars while atmel_console_write (called from printk) is executing Concurent access of uart and console to the same port leads to corrupted data to be transmitted, so disable tx dma (PDC) while writing to the console. Signed-off-by: Marc Pignat <marc.pignat@hevs.ch> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Michael Trimarchi authored
I found a problem related to losing data during pdc transmission in atmel_serial: connect ttyS1 with ttyS2 using a loopback cable, send 30 byte of packet from one to the other and waiting for 30 byte. On the other side just read and echo the data received. We always call atmel_tx_dma() from the tasklet regardless of what interrupt triggered it. Signed-off-by: michael <trimarchi@gandalf.sssup.it> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Christian Borntraeger authored
Currently include/linux/kvm.h is not considered by make headers_install, because Kbuild cannot handle " unifdef-$(CONFIG_FOO) += foo.h. This problem was introduced by commit fb56dbb3 Author: Avi Kivity <avi@qumranet.com> Date: Sun Dec 2 10:50:06 2007 +0200 KVM: Export include/linux/kvm.h only if $ARCH actually supports KVM Currently, make headers_check barfs due to <asm/kvm.h>, which <linux/kvm.h> includes, not existing. Rather than add a zillion <asm/kvm.h>s, export kvm. only if the arch actually supports it. Signed-off-by: Avi Kivity <avi@qumranet.com> which makes this an 2.6.25 regression. One way of solving the issue is to enhance Kbuild, but Avi and David conviced me, that changing headers_install is not the way to go. This patch changes the definition for linux/kvm.h to unifdef-y. If unifdef-y is used for linux/kvm.h "make headers_check" will fail on all architectures without asm/kvm.h. Therefore, this patch also provides asm/kvm.h on all architectures. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Avi Kivity <avi@qumranet.com> Cc: Sam Ravnborg <sam@ravnborg.org Cc: David Woodhouse <dwmw2@infradead.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Richard Kennedy authored
Code inspection discovered in 2 places timers were being incorrectly setup using round_jiffies_relative(HZ). The timer would then fire at time (0 <= T < HZ). Fix them to use round_jiffies(jiffies + HZ); Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <david-b@pacbell.net> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Clark Rawlins authored
Fixes the keyspan driver after the addition of additional checking of driver requirements introduced in usb-serial.c commit 063a2da8. The initialization of the keyspan usb_serial_driver structs were not initializing the num_interrupt_out field and the additional checking was rejecting the end point so the driver wouldn't finish initializing. This commit initializes the fields to NUM_DONT_CARE. It works for the keyspan USA-49WG and doesn't break the USA-19HS which are the two keyspan devices I have to test with. Signed-off-by: Clark Rawlins <clark.rawlins@escient.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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