AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-03-07 17:45:42 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
3a8710392d
linux_dsm_epyc7002/drivers
History
Suzuki K Poulose 3a8710392d coresight: tmc-etr: alloc_perf_buf: Do not call smp_processor_id from preemptible 
During a perf session we try to allocate buffers on the "node" associated
with the CPU the event is bound to. If it is not bound to a CPU, we
use the current CPU node, using smp_processor_id(). However this is unsafe
in a pre-emptible context and could generate the splats as below :

 BUG: using smp_processor_id() in preemptible [00000000] code: perf/1743
 caller is tmc_alloc_etr_buffer+0x1bc/0x1f0
 CPU: 1 PID: 1743 Comm: perf Not tainted 5.1.0-rc6-147786-g116841e #344
 Hardware name: ARM LTD ARM Juno Development Platform/ARM Juno Development Platform, BIOS EDK II Feb  1 2019
 Call trace:
  dump_backtrace+0x0/0x150
  show_stack+0x14/0x20
  dump_stack+0x9c/0xc4
  debug_smp_processor_id+0x10c/0x110
  tmc_alloc_etr_buffer+0x1bc/0x1f0
  etm_setup_aux+0x1c4/0x230
  rb_alloc_aux+0x1b8/0x2b8
  perf_mmap+0x35c/0x478
  mmap_region+0x34c/0x4f0
  do_mmap+0x2d8/0x418
  vm_mmap_pgoff+0xd0/0xf8
  ksys_mmap_pgoff+0x88/0xf8
  __arm64_sys_mmap+0x28/0x38
  el0_svc_handler+0xd8/0x138
  el0_svc+0x8/0xc

Use NUMA_NO_NODE hint instead of using the current node for events
not bound to CPUs.

Fixes: 22f429f19c ("coresight: etm-perf: Add support for ETR backend")
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: stable <stable@vger.kernel.org> # 4.20+
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20190620221237.3536-3-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-07-03 21:15:33 +02:00
..
accessibility
acpi Merge 5.2-rc6 into char-misc-next 2019-06-23 09:23:33 +02:00
amba treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
android binder: return errors from buffer copy functions 2019-07-01 08:42:47 +02:00
ata treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
atm
auxdisplay
base drivers/base/devres: introduce devm_release_action() 2019-06-13 17:34:56 -10:00
bcma
block treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
bluetooth
bus SPDX update for 5.2-rc6 2019-06-21 09:58:42 -07:00
cdrom
char Merge 5.2-rc6 into char-misc-next 2019-06-23 09:23:33 +02:00
clk treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
clocksource treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
connector
counter Merge 5.2-rc6 into char-misc-next 2019-06-23 09:23:33 +02:00
cpufreq treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cpuidle treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
crypto treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
dax mm/devm_memremap_pages: fix final page put race 2019-06-13 17:34:56 -10:00
dca
devfreq treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
dio
dma treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
dma-buf treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
edac
eisa
extcon Update extcon for 5.3 2019-07-01 10:58:54 +02:00
firewire
firmware Merge 5.2-rc6 into char-misc-next 2019-06-23 09:23:33 +02:00
fmc
fpga fpga: dfl: fme: align PR buffer size per PR datawidth 2019-07-03 19:58:59 +02:00
fsi FSI changes for 5.3 2019-07-03 09:21:25 +02:00
gnss
gpio treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
gpu drm vmwgfx, panfrost, i915, imx fixes 2019-06-21 11:03:33 -07:00
hid treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
hsi
hv
hwmon FSI changes for 5.3 2019-07-03 09:21:25 +02:00
hwspinlock
hwtracing coresight: tmc-etr: alloc_perf_buf: Do not call smp_processor_id from preemptible 2019-07-03 21:15:33 +02:00
i2c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
i3c
ide treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
idle
iio Staging/IIO/Counter fixes for 5.2-rc6 2019-06-21 10:20:19 -07:00
infiniband RDMA/efa: Handle mmap insertions overflow 2019-06-18 16:27:24 -04:00
input SPDX update for 5.2-rc6 2019-06-21 09:58:42 -07:00
interconnect
iommu IOMMU Fix for v5.2-rc5: 2019-06-22 14:08:47 -07:00
ipack
irqchip SPDX update for 5.2-rc6 2019-06-21 09:58:42 -07:00
isdn
leds treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
lightnvm
macintosh treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 247 2019-06-19 17:09:08 +02:00
mailbox treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mcb
md md: fix for divide error in status_resync 2019-06-18 08:02:25 -07:00
media treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
memory Merge 5.2-rc6 into char-misc-next 2019-06-23 09:23:33 +02:00
memstick treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
message
mfd treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
misc docs: misc-devices: convert files without extension to ReST 2019-07-03 21:09:41 +02:00
mmc SPDX update for 5.2-rc6 2019-06-21 09:58:42 -07:00
mtd treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mux mux: mmio: add generic regmap bitfield-based multiplexer 2019-06-21 15:59:53 +02:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-21 22:23:35 -07:00
nfc
ntb
nubus
nvdimm mm/devm_memremap_pages: fix final page put race 2019-06-13 17:34:56 -10:00
nvme Merge branch 'nvme-5.2-rc-next' of git://git.infradead.org/nvme into for-linus 2019-06-07 14:04:28 -06:00
nvmem nvmem: imx-ocotp: imx8mq is compatible with imx6 not imx7 2019-06-26 20:26:47 +08:00
of
opp treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
oprofile
parisc SPDX update for 5.2-rc4 2019-06-08 12:52:42 -07:00
parport treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pci pci-v5.2-fixes-1 2019-06-22 09:42:29 -07:00
pcmcia treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
perf treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
phy treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
pinctrl treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
platform docs: misc-devices: convert files without extension to ReST 2019-07-03 21:09:41 +02:00
pnp
power treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
powercap
pps
ps3
ptp
pwm treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rapidio
ras RAS/CEC: Convert the timer callback to a workqueue 2019-06-07 23:21:39 +02:00
regulator treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
remoteproc treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
reset treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
rpmsg
rtc treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
s390 vfio-ccw: Destroy kmem cache region on module exit 2019-06-13 15:52:28 +02:00
sbus
scsi SCSI fixes on 20190622 2019-06-22 09:39:03 -07:00
sfi
sh
siox
slimbus slimbus: core: generate uevent for non-dt only 2019-06-20 10:45:22 +02:00
sn
soc SPDX update for 5.2-rc6 2019-06-21 09:58:42 -07:00
soundwire soundwire fixes for v5.2-rc4 2019-06-10 18:07:39 +02:00
spi treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
spmi
ssb
staging Merge branch 'erofs_fix' into staging-linus 2019-06-17 22:59:28 +02:00
target treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
tc
tee
thermal treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
thunderbolt thunderbolt: Implement CIO reset correctly for Titan Ridge 2019-06-14 14:25:43 +03:00
tty
uio treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
usb usb: fixes for v5.2-rc5 2019-06-20 11:56:35 +02:00
uwb treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
vfio treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
vhost treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 482 2019-06-19 17:09:52 +02:00
video treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
virt
virtio
visorbus
vlynq
vme
w1 Merge 5.2-rc6 into char-misc-next 2019-06-23 09:23:33 +02:00
watchdog treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
xen treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
zorro
Kconfig
Makefile