- 18 4月, 2008 20 次提交
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由 Jason Wessel 提交于
On the ppc 4xx architecture the instruction cache must be flushed as well as the data cache. This patch just makes it generic for all architectures where CACHE_FLUSH_IS_SAFE is set to 1. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
Fix the problem of protecting the kgdb handle_exception exit which had an NMI race condition, while trying to restore normal system operation. There was a small window after the master processor sets cpu_in_debug to zero but before it has set kgdb_active to zero where a non-master processor in an SMP system could receive an NMI and re-enter the kgdb_wait() loop. As long as the master processor sets the cpu_in_debug before sending the cpu roundup the cpu_in_debug variable can also be used to guard against the race condition. The kgdb_wait() function no longer needs to check kgdb_active because it is done in the arch specific code and handled along with the nmi traps at the low level. This also allows kgdb_wait() to exit correctly if it was entered for some unknown reason due to a spurious NMI that could not be handled by the arch specific code. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
Minor cleanups to kgdb docs. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
This patch adds in the ability to compile the kgdb internal test string into the kernel so as to run the tests at boot without changing the kernel boot arguments. This patch also changes all the error paths to invoke WARN_ON(1) which will emit the line number of the file and dump the kernel stack when an error occurs. You can disable the tests in a kernel that is built this way using "kgdbts=" Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
Add in the kgdb documentation for kgdb. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Andrew Morton 提交于
ERROR: "uart_parse_options" [drivers/serial/serial_core.ko] undefined! Cc: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
This patch adds regression tests for testing the kgdb core and arch specific implementation. The kgdb test suite is designed to be built into the kernel and not as a module because it uses a number of low level kernel and kgdb primitives which should not be exported externally. The kgdb test suite is designed as a KGDB I/O module which simulates the communications that a debugger would have with kgdb. The tests are broken up in to a line by line and referenced here as a "get" which is kgdb requesting input and "put" which is kgdb sending a response. The kgdb suite can be invoked from the kernel command line arguments system or executed dynamically at run time. The test suite uses the variable "kgdbts" to obtain the information about which tests to run and to configure the verbosity level. The following are the various characters you can use with the kgdbts= line: When using the "kgdbts=" you only choose one of the following core test types: A = Run all the core tests silently V1 = Run all the core tests with minimal output V2 = Run all the core tests in debug mode You can also specify optional tests: N## = Go to sleep with interrupts of for ## seconds to test the HW NMI watchdog F## = Break at do_fork for ## iterations S## = Break at sys_open for ## iterations NOTE: that the do_fork and sys_open tests are mutually exclusive. To invoke the kgdb test suite from boot you use a kernel start argument as follows: kgdbts=V1 kgdbwait Or if you wanted to perform the NMI test for 6 seconds and do_fork test for 100 forks, you could use: kgdbts=V1N6F100 kgdbwait The test suite can also be invoked at run time with: echo kgdbts=V1N6F100 > /sys/module/kgdbts/parameters/kgdbts Or as another example: echo kgdbts=V2 > /sys/module/kgdbts/parameters/kgdbts When developing a new kgdb arch specific implementation or using these tests for the purpose of regression testing, several invocations are required. 1) Boot with the test suite enabled by using the kernel arguments "kgdbts=V1F100 kgdbwait" ## If kgdb arch specific implementation has NMI use "kgdbts=V1N6F100 2) After the system boot run the basic test. echo kgdbts=V1 > /sys/module/kgdbts/parameters/kgdbts 3) Run the concurrency tests. It is best to use n+1 while loops where n is the number of cpus you have in your system. The example below uses only two loops. ## This tests break points on sys_open while [ 1 ] ; do find / > /dev/null 2>&1 ; done & while [ 1 ] ; do find / > /dev/null 2>&1 ; done & echo kgdbts=V1S10000 > /sys/module/kgdbts/parameters/kgdbts fg # and hit control-c fg # and hit control-c ## This tests break points on do_fork while [ 1 ] ; do date > /dev/null ; done & while [ 1 ] ; do date > /dev/null ; done & echo kgdbts=V1F1000 > /sys/module/kgdbts/parameters/kgdbts fg # and hit control-c Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
kgdb core fixes: - Check to see that mm->mmap_cache is not null before calling flush_cache_range(), else on arch=ARM it will cause a fatal fault. - Breakpoints should only be restored if they are in the BP_ACTIVE state. - Fix a typo in comments to "kgdb_register_io_module" x86 kgdb fixes: - Fix the x86 arch handler such that on a kill or detach that the appropriate cleanup on the single stepping flags gets run. - Add in the DIE_NMIWATCHDOG call for x86_64 - Touch the nmi watchdog before returning the system to normal operation after performing any kind of kgdb operation, else the possibility exists to trigger the watchdog. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
Implement the serial polling hooks for the pl011 uart for use with kgdboc. This patch was specifically tested on the ARM Versatile AB reference platform. [ mingo@elte.hu: minor cleanups. ] Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Jason Wessel 提交于
Fix two regressions dealing with the kgdb core. 1) kgdb_skipexception and kgdb_post_primary_code are optional functions that are only required on archs that need special exception fixups. 2) The kernel address space scope must be set on any probe_kernel_* function or archs such as ARCH=arm will not allow access to the kernel memory space. As an example, it is required to allow the full kernel address space is when you the kernel debugger to inspect a system call. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
Add HW breakpoints into the arch specific portion of x86 kgdb. In the current x86 kernel.org kernels HW breakpoints are changed out in lazy fashion because there is no infrastructure around changing them when changing to a kernel task or entering the kernel mode via a system call. This lazy approach means that if a user process uses HW breakpoints the kgdb will loose out. This is an acceptable trade off because the developer debugging the kernel is assumed to know what is going on system wide and would be aware of this trade off. There is a minor bug fix to the kgdb core so as to correctly call the hw breakpoint functions with a valid value from the enum. There is also a minor change to the x86_64 startup code when using early HW breakpoints. When the debugger is connected, the cpu startup code must not zero out the HW breakpoint registers or you cannot hit the breakpoints you are interested in, in the first place. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
If kgdb does remove a breakpoint that had a problem on the recursion check, it should also print the address of the breakpoint. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
In order to not trip the clocksource watchdog, kgdb must touch the clocksource watchdog on the return to normal system run state. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
This patch fixes the hang regression with kgdb when the NMI interrupt comes in while the master core is returning from an exception. Adjust the NMI logic such that KGDB will not stop NMI exceptions from occurring by in general returning NOTIFY_DONE. It is not possible to distinguish the debug NMI sync vs the normal NMI apic interrupt so kgdb needs to catch the unknown NMI if it the debugger was previously active on one of the cpus. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
Fix the run time configuration of kgdboc such that it does not default to 9600 baud if you use the "echo" command to configure the sysfs module paramater. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Jason Wessel 提交于
document the kgdboc module/boot parameter. Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NJan Kiszka <jan.kiszka@web.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ingo Molnar 提交于
simplified and streamlined kgdb support on x86, both 32-bit and 64-bit, based on patch from: Subject: kgdb: core-lite From: Jason Wessel <jason.wessel@windriver.com> [ and countless other authors - see the patch for details. ] Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NJan Kiszka <jan.kiszka@web.de> Reviewed-by: NThomas Gleixner <tglx@linutronix.de>
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由 Jason Wessel 提交于
polled console handling support, to access a console in an irq-less way while in debug or irq context. absolutely zero impact as long as CONFIG_CONSOLE_POLL is disabled. (which is the default) [ jan.kiszka@siemens.com: lots of cleanups ] [ mingo@elte.hu: redesign, splitups, cleanups. ] Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NJan Kiszka <jan.kiszka@web.de> Reviewed-by: NThomas Gleixner <tglx@linutronix.de>
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由 Jason Wessel 提交于
kgdb core code. Handles the protocol and the arch details. [ mingo@elte.hu: heavily modified, simplified and cleaned up. ] [ xemul@openvz.org: use find_task_by_pid_ns ] Signed-off-by: NJason Wessel <jason.wessel@windriver.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NJan Kiszka <jan.kiszka@web.de> Reviewed-by: NThomas Gleixner <tglx@linutronix.de>
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由 Ingo Molnar 提交于
add probe_kernel_read() and probe_kernel_write(). Uninlined and restricted to kernel range memory only, as suggested by Linus. Signed-off-by: NIngo Molnar <mingo@elte.hu> Reviewed-by: NThomas Gleixner <tglx@linutronix.de>
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- 17 4月, 2008 7 次提交
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由 Linus Torvalds 提交于
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git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: it821x: do not describe noraid parameter with its value Pb1200/DBAu1200: fix bad IDE resource size Au1200: IDE driver build fix Au1200: kill IDE driver function prototypes avr32 mustn't select HAVE_IDE
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由 Paul Bolle 提交于
Describe noraid parameter with its name (and not its value). Signed-off-by: NPaul Bolle <pebolle@tiscali.nl> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Sergei Shtylyov 提交于
The header files for the Pb1200/DBAu1200 boards have wrong definition for the IDE interface's decoded range length -- it should be 512 bytes according to what the IDE driver does. In addition, the IDE platform device claims 1 byte too many for its memory resource -- fix the platform code and the IDE driver in accordance. Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Sergei Shtylyov 提交于
The driver fails to compile with CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA enabled: drivers/ide/mips/au1xxx-ide.c: In function `auide_build_dmatable': drivers/ide/mips/au1xxx-ide.c:256: error: implicit declaration of function `sg_virt' drivers/ide/mips/au1xxx-ide.c:275: error: implicit declaration of function `sg_next' drivers/ide/mips/au1xxx-ide.c:275: warning: assignment makes pointer from integer without a cast Fix this by including <linux/scatterlist.h>. While at it, remove the #include's without which the driver happily builds. Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Sergei Shtylyov 提交于
Fix these warnings emitted when compiling drivers/ide/mips/au1xxx-ide.c: include/asm/mach-au1x00/au1xxx_ide.h:137: warning: 'auide_tune_drive' declared `static' but never defined include/asm/mach-au1x00/au1xxx_ide.h:138: warning: 'auide_tune_chipset' declared `static' but never defined by wiping out the whole "function prototyping" section from the header file <asm-mips/mach-au1x00/au1xxx_ide.h> as it mostly declared functions that are already dead in the IDE driver; move the only useful prototype into the driver. Signed-off-by: NSergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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由 Adrian Bunk 提交于
There's a libata based PATA driver for avr32, but no support for drivers/ide/ on avr32. This patch fixes the following compile error: <-- snip --> ... CC [M] drivers/ide/ide-cd.o In file included from /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/ide/ide-cd.c:37: /home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/ide.h:209:21: error: asm/ide.h: No such file or directory make[3]: *** [drivers/ide/ide-cd.o] Error 1 <-- snip --> Signed-off-by: NAdrian Bunk <bunk@kernel.org> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Acked-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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- 16 4月, 2008 13 次提交
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git://git.kernel.dk/linux-2.6-block由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: block: update git url for blktrace io context: increment task attachment count in ioc_task_link()
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: remove broken usb-serial num_endpoints check USB: option: Add new vendor ID and device ID for AMOI HSDPA modem USB: support more Huawei data card product IDs USB: option.c: add more device IDs USB: Obscure Maxon BP3-USB Device Support 16d8:6280 for option driver
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: [TCP]: Add return value indication to tcp_prune_ofo_queue(). PS3: gelic: fix the oops on the broken IE returned from the hypervisor b43legacy: fix DMA mapping leakage mac80211: remove message on receiving unexpected unencrypted frames Update rt2x00 MAINTAINERS entry Add rfkill to MAINTAINERS file rfkill: Fix device type check when toggling states b43legacy: Fix usage of struct device used for DMAing ssb: Fix usage of struct device used for DMAing MAINTAINERS: move to generic repository for iwlwifi b43legacy: fix initvals loading on bcm4303 rtl8187: Add missing priv->vif assignments netconsole: only set CON_PRINTBUFFER if the user specifies a netconsole [CAN]: Update documentation of struct sockaddr_can MAINTAINERS: isdn4linux@listserv.isdn4linux.de is subscribers-only [TCP]: Fix never pruned tcp out-of-order queue. [NET_SCHED] sch_api: fix qdisc_tree_decrease_qlen() loop
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由 Paul Bolle 提交于
Describe debug parameters with their names (and not their values). Signed-off-by: NPaul Bolle <pebolle@tiscali.nl> Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Greg Kroah-Hartman 提交于
The num_interrupt_in, num_bulk_in, and other checks in the usb-serial code are just wrong, there are too many different devices out there with different numbers of endpoints. We need to just be sticking with the device ids instead of trying to catch this kind of thing. It broke too many different devices. This fixes a large number of usb-serial devices to get them working properly again. Cc: Oliver Neukum <oliver@neukum.org> Cc: stable <stable@kernel.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 tang kai 提交于
This patch add new vendor ID and device ID for AMOI HSDPA modem. From: tang kai <tangk73@hotmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 fangxiaozhi 提交于
- declare the unusal device for Huawei data card devices in unusual_devs.h - disable the product ID matching for Huawei data card devices in usb_match_device function of driver.c - declare the product IDs in option.c. Signed-off-by: Nfangxiaozhi <huananhu@huawei.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Matthias Urlichs 提交于
Add devices by AMOI and NovatelWireless. Signed-Off-By: NMatthias Urlichs <matthias@urlichs.de> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 James Cameron 提交于
The modem was detected, the ttyUSB{0,1,2} appeared, a call could be made, and the expected data rate was achieved. Tested for an hour or two, total of 100Mb. I shall do more testing. Signed-off-by: NJames Cameron <quozl@laptop.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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由 Vitaliy Gusev 提交于
Returns non-zero if tp->out_of_order_queue was seen non-empty. This allows tcp_try_rmem_schedule() to return early. Signed-off-by: NVitaliy Gusev <vgusev@openvz.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 yakui.zhao@intel.com 提交于
http://bugzilla.kernel.org/show_bug.cgi?id=10124 this change: commit 08f1c192 Author: Muli Ben-Yehuda <muli@il.ibm.com> Date: Sun Jul 22 00:23:39 2007 +0300 x86-64: introduce struct pci_sysdata to facilitate sharing of ->sysdata This patch introduces struct pci_sysdata to x86 and x86-64, and converts the existing two users (NUMA, Calgary) to use it. This lays the groundwork for having other users of sysdata, such as the PCI domains work. The Calgary bits are tested, the NUMA bits just look ok. replaces pcibios_scan_root by pci_scan_bus_parented... but in pcibios_scan_root we have a check about scanned busses. Cc: <yakui.zhao@intel.com> Cc: Stian Jordet <stian@jordet.net> Cc: Len Brown <lenb@kernel.org> Cc: Greg KH <greg@kroah.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: "Yinghai Lu" <yhlu.kernel@gmail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Krzysztof Helt 提交于
The THERMAL_MAX_TRIPS value is set to 10. It is too few for the Compaq AP550 machine which has 12 trip points. Signed-off-by: NKrzysztof Helt <krzysztof.h1@wp.pl> Cc: Len Brown <lenb@kernel.org> Cc: Zhang Rui <rui.zhang@intel.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Chuck Ebbert 提交于
List could have become empty after the unlocked check that was made earlier, so check again inside the lock. Should fix https://bugzilla.redhat.com/show_bug.cgi?id=427765Signed-off-by: NChuck Ebbert <cebbert@redhat.com> Cc: <stable@kernel.org> Cc: Len Brown <lenb@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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