- 18 4月, 2008 40 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt: clocksource: make clocksource watchdog cycle through online CPUs Documentation: move timer related documentation to a single place clockevents: optimise tick_nohz_stop_sched_tick() a bit locking: remove unused double_spin_lock() hrtimers: simplify lockdep handling timers: simplify lockdep handling posix-timers: fix shadowed variables timer_list: add annotations to workqueue.c hrtimer: use nanosleep specific restart_block fields hrtimer: add nanosleep specific restart_block member
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git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6: jfs: replace __inline with inline jfs: le*_add_cpu conversion
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git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-kgdb由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-kgdb: kgdb: always use icache flush for sw breakpoints kgdb: fix SMP NMI kgdb_handle_exception exit race kgdb: documentation fixes kgdb: allow static kgdbts boot configuration kgdb: add documentation kgdb: Kconfig fix kgdb: add kgdb internal test suite kgdb: fix several kgdb regressions kgdb: kgdboc pl011 I/O module kgdb: fix optional arch functions and probe_kernel_* kgdb: add x86 HW breakpoints kgdb: print breakpoint removed on exception kgdb: clocksource watchdog kgdb: fix NMI hangs kgdb: fix kgdboc dynamic module configuration kgdb: document parameters x86: kgdb support consoles: polling support, kgdboc kgdb: core uaccess: add probe_kernel_write()
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git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (613 commits) x86: standalone trampoline code x86: move suspend wakeup code to C x86: coding style fixes to arch/x86/kernel/acpi/sleep.c x86: setup_trampoline() - fix section mismatch warning x86: section mismatch fixes, #1 x86: fix paranoia about using BIOS quickboot mechanism. x86: print out buggy mptable x86: use cpu_online() x86: use cpumask_of_cpu() x86: remove unnecessary tmp local variable x86: remove unnecessary memset() x86: use ioapic_read_entry() and ioapic_write_entry() x86: avoid redundant loop in io_apic_level_ack_pending() x86: remove superfluous initialisation in boot code. x86: merge mpparse_{32,64}.c x86: unify mp_register_gsi x86: unify mp_config_acpi_legacy_irqs x86: unify mp_register_ioapic x86: unify uniq_io_apic_id x86: unify smp_scan_config ...
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git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc由 Linus Torvalds 提交于
* 'semaphore' of git://git.kernel.org/pub/scm/linux/kernel/git/willy/misc: Remove DEBUG_SEMAPHORE from Kconfig Improve semaphore documentation Simplify semaphore implementation Add down_timeout and change ACPI to use it Introduce down_killable() Generic semaphore implementation Add semaphore.h to kernel_lock.c Fix quota.h includes
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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: (104 commits) IB/iser: Don't change itt endianness IB/mlx4: Update module version and release date IPoIB: Handle case when P_Key is deleted and re-added at same index IB/iser: Release connection resources on RDMA_CM_EVENT_DEVICE_REMOVAL event IB/mlx4: Fix incorrect comment IB/mlx4: Fix race when detaching a QP from a multicast group IB/ehca: Support all ibv_devinfo values in query_device() and query_port() RDMA/nes: Free IRQ before killing tasklet IB/mthca: Update module version and release date IB/mlx4: Update QP state if query QP succeeds IB/mthca: Update QP state if query QP succeeds RDMA/amso1100: Add check for NULL reply_msg in c2_intr() IB/mlx4: Add support for resizing CQs IB/mlx4: Add support for modifying CQ moderation parameters IPoIB: Support modifying IPoIB CQ event moderation IB/core: Add support for modify CQ IPoIB: Add basic ethtool support mlx4_core: Increase max number of QPs to 128K RDMA/amso1100: Add support for "send with invalidate" work requests IB/core: Add support for "send with invalidate" work requests ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6: security: enhance DEFAULT_MMAP_MIN_ADDR description SELinux: add netport.[ch] SELinux: Add network port SID cache SELinux: turn mount options strings into defines selinux/ss/services.c should #include <linux/selinux.h> selinux: introduce permissive types selinux: remove ptrace_sid SELinux: requesting no permissions in avc_has_perm_noaudit is a BUG() security: code cleanup security: replace remaining __FUNCTION__ occurrences SELinux: create new open permission selinux: selinux/netlabel.c should #include "netlabel.h" SELinux: unify printk messages SELinux: remove unused backpointers from security objects SELinux: Correct the NetLabel locking for the sk_security_struct
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git://git390.osdl.marist.edu/pub/scm/linux-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (36 commits) [S390] Remove code duplication from monreader / dcssblk. [S390] kernel: show last breaking-event-address on oops [S390] lowcore: Change type of lowcores softirq_pending to __u32. [S390] zcrypt: Comments and kernel-doc cleanup [S390] uaccess: Always access the correct address space. [S390] Fix a lot of sparse warnings. [S390] Convert s390 to GENERIC_CLOCKEVENTS. [S390] genirq/clockevents: move irq affinity prototypes/inlines to interrupt.h [S390] Convert monitor calls to function calls. [S390] qdio (new feature): enhancing info-retrieval from QDIO-adapters [S390] replace remaining __FUNCTION__ occurrences [S390] remove redundant display of free swap space in show_mem() [S390] qdio: remove outdated developerworks link. [S390] Add debug_register_mode() function to debug feature API [S390] crypto: use more descriptive function names for init/exit routines. [S390] switch sched_clock to store-clock-extended. [S390] zcrypt: add support for large random numbers [S390] hw_random: allow rng_dev_read() to return hardware errors. [S390] Vertical cpu management. [S390] cpu topology support for s390. ...
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git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slub: No need for per node slab counters if !SLUB_DEBUG slub: Move map/flag clearing to __free_slab slub: Fixes to per cpu stat output in sysfs slub: Deal with config variable dependencies slub: Reduce #ifdef ZONE_DMA by moving kmalloc_caches_dma near dma logic slub: Initialize per-cpu stats
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由 Roland McGrath 提交于
This breaks out the ptrace handling from get_signal_to_deliver into a new subroutine. The actual code there doesn't change, and it gets inlined into nearly identical compiled code. This makes the function substantially shorter and thus easier to read, and it nicely isolates the ptrace magic. Signed-off-by: NRoland McGrath <roland@redhat.com> Acked-by: NKyle McMartin <kyle@mcmartin.ca> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Li Zefan 提交于
When I ran a test program to fork mass processes and at the same time 'cat /cgroup/tasks', I got the following oops: ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:72! invalid opcode: 0000 [#1] SMP Pid: 4178, comm: a.out Not tainted (2.6.25-rc9 #72) ... Call Trace: [<c044a5f9>] ? cgroup_exit+0x55/0x94 [<c0427acf>] ? do_exit+0x217/0x5ba [<c0427ed7>] ? do_group_exit+0.65/0x7c [<c0427efd>] ? sys_exit_group+0xf/0x11 [<c0404842>] ? syscall_call+0x7/0xb [<c05e0000>] ? init_cyrix+0x2fa/0x479 ... EIP: [<c04df671>] list_del+0x35/0x53 SS:ESP 0068:ebc7df4 ---[ end trace caffb7332252612b ]--- Fixing recursive fault but reboot is needed! After digging into the code and debugging, I finlly found out a race situation: do_exit() ->cgroup_exit() ->if (!list_empty(&tsk->cg_list)) list_del(&tsk->cg_list); cgroup_iter_start() ->cgroup_enable_task_cg_list() ->list_add(&tsk->cg_list, ..); In this case the list won't be deleted though the process has exited. We got two bug reports in the past, which seem to be the same bug as this one: http://lkml.org/lkml/2008/3/5/332 http://lkml.org/lkml/2007/10/17/224 Actually sometimes I got oops on list_del, sometimes oops on list_add. And I can change my test program a bit to trigger other oops. The patch has been tested both on x86_32 and x86_64. Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Acked-by: NPaul Menage <menage@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: stable@kernel.org Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 maximilian attems 提交于
Got burned by setting the proposed default of 65536 across all Debian archs. Thus proposing to be more specific on which archs you may set this. Also propose a value for arm and friends that doesn't break sshd. Reword to mention working archs ia64 and ppc64 too. Signed-off-by: Nmaximilian attems <max@stro.at> Cc: Martin Michlmayr <tbm@cyrius.com> Cc: Gordon Farquharson <gordonfarquharson@gmail.com> Acked-by: NEric Paris <eparis@redhat.com> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 James Morris 提交于
Thank you, git. Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Paul Moore 提交于
Much like we added a network node cache, this patch adds a network port cache. The design is taken almost completely from the network node cache which in turn was taken from the network interface cache. The basic idea is to cache entries in a hash table based on protocol/port information. The hash function only takes the port number into account since the number of different protocols in use at any one time is expected to be relatively small. Signed-off-by: NPaul Moore <paul.moore@hp.com> Acked-by: NStephen Smalley <sds@tycho.nsa.gov> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Eric Paris 提交于
Convert the strings used for mount options into #defines rather than retyping the string throughout the SELinux code. Signed-off-by: NEric Paris <eparis@redhat.com> Acked-by: NStephen Smalley <sds@tycho.nsa.gov> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Adrian Bunk 提交于
Every file should include the headers containing the externs for its global code. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Eric Paris 提交于
Introduce the concept of a permissive type. A new ebitmap is introduced to the policy database which indicates if a given type has the permissive bit set or not. This bit is tested for the scontext of any denial. The bit is meaningless on types which only appear as the target of a decision and never the source. A domain running with a permissive type will be allowed to perform any action similarly to when the system is globally set permissive. Signed-off-by: NEric Paris <eparis@redhat.com> Acked-by: NStephen Smalley <sds@tycho.nsa.gov> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Roland McGrath 提交于
This changes checks related to ptrace to get rid of the ptrace_sid tracking. It's good to disentangle the security model from the ptrace implementation internals. It's sufficient to check against the SID of the ptracer at the time a tracee attempts a transition. Signed-off-by: NRoland McGrath <roland@redhat.com> Acked-by: NStephen Smalley <sds@tycho.nsa.gov> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Eric Paris 提交于
This patch turns the case where we have a call into avc_has_perm with no requested permissions into a BUG_ON. All callers to this should be in the kernel and thus should be a function we need to fix if we ever hit this. The /selinux/access permission checking it done directly in the security server and not through the avc, so those requests which we cannot control from userspace should not be able to trigger this BUG_ON. Signed-off-by: NEric Paris <eparis@redhat.com> Acked-by: NStephen D. Smalley <sds@tycho.nsa.gov> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Andrew Morton 提交于
ERROR: "(foo*)" should be "(foo *)" #168: FILE: security/selinux/hooks.c:2656: + "%s, rc=%d\n", __func__, (char*)value, -rc); total: 1 errors, 0 warnings, 195 lines checked ./patches/security-replace-remaining-__function__-occurences.patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Harvey Harrison <harvey.harrison@gmail.com> Cc: James Morris <jmorris@namei.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Harvey Harrison 提交于
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com> Cc: James Morris <jmorris@namei.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Eric Paris 提交于
Adds a new open permission inside SELinux when 'opening' a file. The idea is that opening a file and reading/writing to that file are not the same thing. Its different if a program had its stdout redirected to /tmp/output than if the program tried to directly open /tmp/output. This should allow policy writers to more liberally give read/write permissions across the policy while still blocking many design and programing flaws SELinux is so good at catching today. Signed-off-by: NEric Paris <eparis@redhat.com> Acked-by: NStephen Smalley <sds@tycho.nsa.gov> Reviewed-by: NPaul Moore <paul.moore@hp.com> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Adrian Bunk 提交于
Every file should include the headers containing the externs for its global code. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Acked-by: NPaul Moore <paul.moore@hp.com> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 James Morris 提交于
Replace "security:" prefixes in printk messages with "SELinux" to help users identify the source of the messages. Also fix a couple of minor formatting issues. Signed-off-by: NJames Morris <jmorris@namei.org>
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由 James Morris 提交于
Remove unused backpoiters from security objects. Signed-off-by: NJames Morris <jmorris@namei.org>
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由 Paul Moore 提交于
The RCU/spinlock locking approach for the nlbl_state in the sk_security_struct was almost certainly overkill. This patch removes both the RCU and spinlock locking, relying on the existing socket locks to handle the case of multiple writers. This change also makes several code reductions possible. Less locking, less code - it's a Good Thing. Signed-off-by: NPaul Moore <paul.moore@hp.com> Signed-off-by: NJames Morris <jmorris@namei.org>
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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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