Yinghai Lu
0212f91596
x86: Add Crash kernel low reservation
...
During kdump kernel's booting stage, it need to find low ram for
swiotlb buffer when system does not support intel iommu/dmar remapping.
kexed-tools is appending memmap=exactmap and range from /proc/iomem
with "Crash kernel", and that range is above 4G for 64bit after boot
protocol 2.12.
We need to add another range in /proc/iomem like "Crash kernel low",
so kexec-tools could find that info and append to kdump kernel
command line.
Try to reserve some under 4G if the normal "Crash kernel" is above 4G.
User could specify the size with crashkernel_low=XX[KMG].
-v2: fix warning that is found by Fengguang's test robot.
-v3: move out get_mem_size change to another patch, to solve compiling
warning that is found by Borislav Petkov <[email protected] >
-v4: user must specify crashkernel_low if system does not support
intel or amd iommu.
Signed-off-by: Yinghai Lu <[email protected] >
Link: http://lkml.kernel.org/r/[email protected]
Cc: Eric Biederman <[email protected] >
Cc: Rob Landley <[email protected] >
Signed-off-by: H. Peter Anvin <[email protected] >
2013-01-29 19:32:58 -08:00
..
debug
module: add new state MODULE_STATE_UNFORMED.
2013-01-12 13:27:05 +10:30
events
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-12-17 15:44:47 -08:00
gcov
irq
irq: tsk->comm is an array
2012-12-18 15:02:11 -08:00
power
Merge branch 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2012-12-12 08:18:24 -08:00
sched
wake_up_process() should be never used to wakeup a TASK_STOPPED/TRACED task
2013-01-22 10:08:17 -08:00
time
Merge tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2012-12-13 15:31:08 -08:00
trace
ftrace: Be first to run code modification on modules
2013-01-21 13:21:50 -05:00
.gitignore
acct.c
vfs: make path_openat take a struct filename pointer
2012-10-12 20:15:09 -04:00
async.c
async: fix __lowest_in_progress()
2013-01-22 16:21:24 -08:00
audit.c
kernel/audit.c: avoid negative sleep durations
2013-01-11 14:54:56 -08:00
audit.h
audit: optimize audit_compare_dname_path
2012-10-12 00:32:02 -04:00
audit_tree.c
audit: catch possible NULL audit buffers
2013-01-11 14:54:55 -08:00
audit_watch.c
audit: catch possible NULL audit buffers
2013-01-11 14:54:55 -08:00
auditfilter.c
audit: fix auditfilter.c kernel-doc warnings
2013-01-10 14:35:23 -08:00
auditsc.c
audit: catch possible NULL audit buffers
2013-01-11 14:54:55 -08:00
backtracetest.c
bounds.c
capability.c
userns: Teach inode_capable to understand inodes whose uids map to other namespaces.
2012-05-15 14:59:24 -07:00
cgroup.c
Merge branch 'akpm' (Andrew's patch-bomb)
2012-12-17 20:58:12 -08:00
cgroup_freezer.c
cgroup: rename ->create/post_create/pre_destroy/destroy() to ->css_alloc/online/offline/free()
2012-11-19 08:13:38 -08:00
compat.c
x32: fix sigtimedwait
2012-12-26 01:15:03 -05:00
configs.c
context_tracking.c
context_tracking: New context tracking susbsystem
2012-11-30 11:40:07 -08:00
cpu.c
Merge branch 'x86-bsp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-12-11 19:56:33 -08:00
cpu_pm.c
kernel/cpu_pm.c: fix various typos
2012-05-31 17:49:27 -07:00
cpuset.c
cpuset: use N_MEMORY instead N_HIGH_MEMORY
2012-12-12 17:38:32 -08:00
crash_dump.c
cred.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-12-18 10:55:28 -08:00
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2012-12-17 15:44:47 -08:00
extable.c
extable: Skip sorting if sorted at build time.
2012-04-19 15:06:55 -07:00
fork.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2013-01-20 13:58:48 -08:00
freezer.c
freezer: change ptrace_stop/do_signal_stop to use freezable_schedule()
2012-10-26 14:27:49 -07:00
futex.c
futex: avoid wake_futex() for a PI futex_q
2012-11-26 17:41:24 -08:00
futex_compat.c
groups.c
userns: Convert in_group_p and in_egroup_p to use kgid_t
2012-05-03 03:29:33 -07:00
hrtimer.c
hrtimer: Update hrtimer base offsets each hrtimer_interrupt
2012-07-11 23:34:39 +02:00
hung_task.c
hung task debugging: Inject NMI when hung and going to panic
2012-04-25 12:39:25 +02:00
irq_work.c
irq_work: fix compile failure on tile from missing include
2012-04-13 13:15:16 -04:00
itimer.c
itimer: Use printk_once instead of WARN_ONCE
2012-04-10 11:00:30 +02:00
jump_label.c
jump_label: Export jump_label_rate_limit()
2012-08-06 19:00:35 +03:00
kallsyms.c
vsprintf: fix %ps on non symbols when using kallsyms
2012-05-29 16:22:32 -07:00
kcmp.c
kcmp: include linux/ptrace.h
2012-12-20 17:40:19 -08:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
locking: Adjust spin lock inlining Kconfig options
2012-09-13 17:56:13 +02:00
Kconfig.preempt
kexec.c
x86: Add Crash kernel low reservation
2013-01-29 19:32:58 -08:00
kfifo.c
[media] kernel:kfifo: export __kfifo_max_r symbol
2012-04-11 18:24:37 -03:00
kmod.c
Bury the conditionals from kernel_thread/kernel_execve series
2012-12-19 18:07:38 -05:00
kprobes.c
kprobes/x86: Fix to support jprobes on ftrace-based kprobe
2012-09-13 22:52:11 -04:00
ksysfs.c
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2012-12-11 18:10:49 -08:00
kthread.c
kthread: use N_MEMORY instead N_HIGH_MEMORY
2012-12-12 17:38:33 -08:00
latencytop.c
lglock.c
brlocks/lglocks: turn into functions
2012-05-29 23:28:41 -04:00
lockdep.c
lockdep: Check if nested lock is actually held
2012-09-13 17:00:44 +02:00
lockdep_internals.h
lockdep_proc.c
lockdep: Use KSYM_NAME_LEN'ed buffer for __get_key_name()
2012-10-24 12:39:09 +02:00
lockdep_states.h
Makefile
Nothing all that exciting; a new module-from-fd syscall for those who want
2012-12-19 07:55:08 -08:00
modsign_certificate.S
MODSIGN: Avoid using .incbin in C source
2012-12-14 13:06:44 +10:30
modsign_pubkey.c
keys: use keyring_alloc() to create module signing keyring
2012-12-20 17:40:21 -08:00
module-internal.h
MODSIGN: Move the magic string to the end of a module and eliminate the search
2012-10-19 17:30:40 -07:00
module.c
module: fix missing module_mutex unlock
2013-01-20 20:22:58 -08:00
module_signing.c
MODSIGN: Don't use enum-type bitfields in module signature info block
2012-12-05 11:27:24 +10:30
mutex-debug.c
mutex-debug.h
mutex.c
mutex.h
notifier.c
nsproxy.c
userns: Implement unshare of the user namespace
2012-11-20 04:18:14 -08:00
padata.c
padata: use __this_cpu_read per-cpu helper
2012-12-06 17:16:23 +08:00
panic.c
panic: fix a possible deadlock in panic()
2012-07-30 17:25:13 -07:00
params.c
params: replace printk(KERN_<LVL>...) with pr_<lvl>(...)
2012-05-04 17:28:18 -07:00
pid.c
pidns: Stop pid allocation when init dies
2012-12-25 16:10:05 -08:00
pid_namespace.c
pidns: Stop pid allocation when init dies
2012-12-25 16:10:05 -08:00
posix-cpu-timers.c
A few /dev/random improvements for the v3.8 merge window.
2012-12-19 20:23:37 -08:00
posix-timers.c
printk.c
printk: fix incorrect length from print_time() when seconds > 99999
2013-01-04 16:11:48 -08:00
profile.c
propagate name change to comments in kernel source
2012-12-06 10:39:54 +01:00
ptrace.c
ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILL
2013-01-22 10:08:00 -08:00
range.c
rcu.h
rcu: Add a module parameter to force use of expedited RCU primitives
2012-10-23 14:54:08 -07:00
rcupdate.c
rcu: Add a module parameter to force use of expedited RCU primitives
2012-10-23 14:54:08 -07:00
rcutiny.c
rcu: Fix TINY_RCU rcu_is_cpu_rrupt_from_idle check
2012-11-13 14:08:34 -08:00
rcutiny_plugin.h
rcu: Add a module parameter to force use of expedited RCU primitives
2012-10-23 14:54:08 -07:00
rcutorture.c
Merge branches 'urgent.2012.10.27a', 'doc.2012.11.16a', 'fixes.2012.11.13a', 'srcu.2012.10.27a', 'stall.2012.11.13a', 'tracing.2012.11.08a' and 'idle.2012.10.24a' into HEAD
2012-11-16 09:59:58 -08:00
rcutree.c
context_tracking: New context tracking susbsystem
2012-11-30 11:40:07 -08:00
rcutree.h
rcu: Separate accounting of callbacks from callback-free CPUs
2012-11-16 10:05:57 -08:00
rcutree_plugin.h
rcu: Separate accounting of callbacks from callback-free CPUs
2012-11-16 10:05:57 -08:00
rcutree_trace.c
rcu: Separate accounting of callbacks from callback-free CPUs
2012-11-16 10:05:57 -08:00
relay.c
splice: fix racy pipe->buffers uses
2012-06-13 21:16:42 +02:00
res_counter.c
res_counter: return amount of charges after res_counter_uncharge()
2012-12-18 15:02:12 -08:00
resource.c
kernel/resource.c: fix stack overflow in __reserve_region_with_split()
2012-10-06 03:05:31 +09:00
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rtmutex_common.h
rwsem.c
lockdep, rwsem: provide down_write_nest_lock()
2013-01-11 14:54:55 -08:00
seccomp.c
seccomp: Make syscall skipping and nr changes more consistent
2012-10-02 21:14:29 +10:00
semaphore.c
semaphore: fix improper comment reference to mutex
2012-04-05 17:15:55 -07:00
signal.c
ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILL
2013-01-22 10:08:00 -08:00
smp.c
smp: Remove ipi_call_lock[_irq]()/ipi_call_unlock[_irq]()
2012-06-05 17:27:14 +02:00
smpboot.c
hotplug: Fix UP bug in smpboot hotplug code
2012-08-13 17:01:07 +02:00
smpboot.h
smpboot: Provide infrastructure for percpu hotplug threads
2012-08-13 17:01:07 +02:00
softirq.c
cputime: Specialize irq vtime hooks
2012-10-29 21:31:32 +01:00
spinlock.c
srcu.c
Merge branches 'urgent.2012.10.27a', 'doc.2012.11.16a', 'fixes.2012.11.13a', 'srcu.2012.10.27a', 'stall.2012.11.13a', 'tracing.2012.11.08a' and 'idle.2012.10.24a' into HEAD
2012-11-16 09:59:58 -08:00
stacktrace.c
stop_machine.c
sys.c
cputime: Rename thread_group_times to thread_group_cputime_adjusted
2012-11-28 17:07:57 +01:00
sys_ni.c
module: add syscall to load module from fd
2012-12-14 13:05:22 +10:30
sysctl.c
Automatic NUMA Balancing V11
2012-12-16 15:18:08 -08:00
sysctl_binary.c
pidns: Use task_active_pid_ns where appropriate
2012-11-19 05:59:09 -08:00
task_work.c
task_work: task_work_add() should not succeed after exit_task_work()
2012-09-13 16:47:34 +02:00
taskstats.c
taskstats: cgroupstats_user_cmd() may leak on error
2012-10-06 03:05:31 +09:00
test_kprobes.c
time.c
time: Move update_vsyscall definitions to timekeeper_internal.h
2012-09-24 12:38:06 -04:00
timeconst.pl
timer.c
timers: Fix endless looping between cascade() and internal_add_timer()
2012-10-09 21:27:14 +02:00
tracepoint.c
tsacct.c
userns: Convert taskstats to handle the user and pid namespaces.
2012-09-18 01:01:32 -07:00
uid16.c
userns: Convert setting and getting uid and gid system calls to use kuid and kgid
2012-05-03 03:28:41 -07:00
up.c
user-return-notifier.c
user.c
proc: Usable inode numbers for the namespace file descriptors.
2012-11-20 04:19:49 -08:00
user_namespace.c
userns: Fix typo in description of the limitation of userns_install
2012-12-14 18:36:36 -08:00
utsname.c
userns: Require CAP_SYS_ADMIN for most uses of setns.
2012-12-14 16:12:03 -08:00
utsname_sysctl.c
wait.c
propagate name change to comments in kernel source
2012-12-06 10:39:54 +01:00
watchdog.c
watchdog: Fix disable/enable regression
2012-12-19 12:10:33 -08:00
workqueue.c
Merge branch 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2012-12-12 08:15:13 -08:00
workqueue_sched.h