Steven Rostedt (VMware)
d4decac1ed
tracing: Allocate the snapshot buffer before enabling probe ...
commit df62db5be2e5f070ecd1a5ece5945b590ee112e0 upstream.
Currently the snapshot trigger enables the probe and then allocates the
snapshot. If the probe triggers before the allocation, it could cause the
snapshot to fail and turn tracing off. It's best to allocate the snapshot
buffer first, and then enable the trigger. If something goes wrong in the
enabling of the trigger, the snapshot buffer is still allocated, but it can
also be freed by the user by writting zero into the snapshot buffer file.
Also add a check of the return status of alloc_snapshot().
Fixes: 77fd5c15e3
2017-04-27 09:10:37 +02:00
bpf: fix mark_reg_unknown_value for spilled regs on map value marking
2017-03-22 12:43:35 +01:00
config: android: enable CONFIG_SECCOMP
2016-10-11 15:06:32 -07:00
kernel/debug/debug_core.c: more properly delay for secondary CPUs
2017-01-06 10:40:17 +01:00
perf/core: Fix event inheritance on fork()
2017-03-26 13:05:57 +02:00
gcov: add support for gcc version >= 6
2016-07-15 14:54:27 +09:00
irqdomain: Avoid activating interrupts more than once
2017-02-09 08:08:31 +01:00
livepatch/module: make TAINT_LIVEPATCH module-specific
2016-08-26 14:42:08 +02:00
locking/rwsem: Fix down_write_killable() for CONFIG_RWSEM_GENERIC_SPINLOCK=y
2017-03-22 12:43:40 +01:00
PM / sleep: fix device reference leak in test_suspend
2016-11-02 05:10:04 +01:00
printk: use rcuidle console tracepoint
2017-02-23 17:44:36 +01:00
rcu: Narrow early boot window of illegal synchronous grace periods
2017-01-26 08:24:37 +01:00
sched/rt: Add a missing rescheduling point
2017-03-31 10:31:46 +02:00
timekeeping: Use deferred printk() in debug code
2017-02-23 17:44:36 +01:00
tracing: Allocate the snapshot buffer before enabling probe
2017-04-27 09:10:37 +02:00
Merge branch 'stable-4.9' of git://git.infradead.org/users/pcmoore/audit
2016-10-04 14:21:41 -07:00
Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit
2016-07-29 17:54:17 -07:00
audit: cleanup prune_tree_thread
2016-04-04 09:46:47 -04:00
Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit
2016-09-01 15:55:56 -07:00
audit: add fields to exclude filter by reusing user filter
2016-06-27 11:01:00 -04:00
Merge branch 'stable-4.9' of git://git.infradead.org/users/pcmoore/audit
2016-10-04 14:21:41 -07:00
ptrace: Capture the ptracer's creds not PT_PTRACE_CAP
2017-01-06 10:40:13 +01:00
cgroup, kthread: close race window where new kthreads can be migrated to non-root cgroups
2017-04-21 09:31:18 +02:00
cgroup/pids: remove spurious suspicious RCU usage warning
2017-03-26 13:05:58 +02:00
hotplug: Make register and unregister notifier API symmetric
2017-01-06 10:40:10 +01:00
Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2016-10-14 12:18:50 -07:00
cred: Reject inodes with invalid ids in set_create_file_as()
2016-06-30 18:05:09 -05:00
sched/autogroup: Do not use autogroup->tg in zombie threads
2016-11-22 12:33:43 +01:00
mm: Add a user_ns owner to mm_struct and fix ptrace permission checks
2017-01-06 10:40:13 +01:00
freezer, oom: check TIF_MEMDIE on the correct task
2016-07-28 16:07:41 -07:00
futex: Add missing error handling to FUTEX_REQUEUE_PI
2017-03-22 12:43:40 +01:00
cred: simpler, 1D supplementary groups
2016-10-07 18:46:30 -07:00
hung_task: allow hung_task_panic when hung_task_warnings is 0
2016-10-11 15:06:33 -07:00
jump_labels: API for flushing deferred jump label updates
2017-01-19 20:17:59 +01:00
kcov: add missing #include <linux/sched.h>
2016-12-07 17:10:00 -08:00
kexec: allow architectures to override boot mapping
2016-08-02 19:35:27 -04:00
kexec: add restriction on kexec_load() segment sizes
2016-08-02 19:35:31 -04:00
kexec: fix double-free when failing to relocate the purgatory
2016-09-01 17:52:01 -07:00
kprobes: include <asm/sections.h> instead of <asm-generic/sections.h>
2016-10-11 15:06:31 -07:00
kexec: add a kexec_crash_loaded() function
2016-08-02 19:35:30 -04:00
cgroup, kthread: close race window where new kthreads can be migrated to non-root cgroups
2017-04-21 09:31:18 +02:00
userns: Add per user namespace sysctls.
2016-08-08 13:18:58 -05:00
Fix: Disable sys_membarrier when nohz_full is enabled
2017-03-12 06:41:45 +01:00
mm, devm_memremap_pages: hold device_hotplug lock over mem_hotplug_{begin, done}
2017-03-12 06:41:43 +01:00
Re-enable CONFIG_MODVERSIONS in a slightly weaker form
2016-11-29 16:01:30 -08:00
KEYS: Move the point of trust determination to __key_link()
2016-04-11 22:43:43 +01:00
padata: avoid race in reordering
2017-04-08 09:30:36 +02:00
x86/panic: replace smp_send_stop() with kdump friendly version in panic path
2016-10-11 15:06:32 -07:00
remove lots of IS_ERR_VALUE abuses
2016-05-27 15:26:11 -07:00
pid: fix lockdep deadlock warning due to ucount_lock
2017-01-19 20:18:03 +01:00
profile: Convert to hotplug state machine
2016-07-15 10:41:42 +02:00
ptrace: fix PTRACE_LISTEN race corrupting task->state
2017-04-12 12:41:12 +02:00
relay: check array offset before using it
2017-01-12 11:39:30 +01:00
/proc/iomem: only expose physical resource addresses to privileged users
2016-04-14 12:56:09 -07:00
seccomp: Fix tracer exit notifications during fatal signals
2016-08-30 16:12:46 -07:00
sigaltstack: support SS_AUTODISARM for CONFIG_COMPAT
2017-03-12 06:41:44 +01:00
smp: Allocate smp_call_on_cpu() workqueue on stack too
2016-09-22 14:49:10 +02:00
kthread/smpboot: do not park in kthread_create_on_cpu()
2016-10-11 15:06:33 -07:00
softirq: Display IRQ_POLL for irq-poll statistics
2016-10-21 15:45:47 -06:00
stacktrace, lockdep: Fix address, newline ugliness
2017-02-14 15:25:42 -08:00
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-10-03 13:39:00 -07:00
prctl: make PR_SET_THP_DISABLE wait for mmap_sem killable
2016-05-23 17:04:14 -07:00
x86/pkeys: Fix pkeys build breakage for some non-x86 arches
2016-09-13 14:41:36 +02:00
sysctl: fix proc_doulongvec_ms_jiffies_minmax()
2017-02-01 08:33:05 +01:00
kernel/sysctl_binary.c: use generic UUID library
2016-05-20 17:58:30 -07:00
task_work: use READ_ONCE/lockless_dereference, avoid pi_lock if !task_works
2016-08-02 19:35:02 -04:00
taskstats: fix the length of cgroupstats_cmd_get_policy
2016-11-03 16:55:58 -04:00
torture: Convert torture_shutdown() to hrtimer
2016-08-22 10:01:49 -07:00
ucount: Remove the atomicity from ucount->count
2017-03-18 19:14:29 +08:00
cred: simpler, 1D supplementary groups
2016-10-07 18:46:30 -07:00
smp: Add function to execute a function synchronously on a CPU
2016-09-05 13:52:39 +02:00
Merge branch 'nsfs-ioctls' into HEAD
2016-09-22 20:00:36 -05:00
Merge branch 'nsfs-ioctls' into HEAD
2016-09-22 20:00:36 -05:00
kernel/watchdog: use nmi registers snapshot in hardlockup handler
2017-01-06 10:40:16 +01:00
kthread: rename probe_kthread_data() to kthread_probe_data()
2016-10-11 15:06:33 -07:00
d4decac1ed