Chris Wilson ff34527103 drm/i915/gt: Mark up intel_rps.active for racy reads ... We read the current state of intel_rps.active outside of the lock, so mark up the racy access. [ 525.037073] BUG: KCSAN: data-race in intel_rps_boost [i915] / intel_rps_park [i915] [ 525.037091] [ 525.037103] write to 0xffff8881f145efa1 of 1 bytes by task 192 on cpu 2: [ 525.037331] intel_rps_park+0x72/0x230 [i915] [ 525.037552] __gt_park+0x61/0xa0 [i915] [ 525.037771] ____intel_wakeref_put_last+0x42/0x90 [i915] [ 525.037991] __intel_wakeref_put_work+0xd3/0xf0 [i915] [ 525.038008] process_one_work+0x3b1/0x690 [ 525.038022] worker_thread+0x80/0x670 [ 525.038037] kthread+0x19a/0x1e0 [ 525.038051] ret_from_fork+0x1f/0x30 [ 525.038062] [ 525.038074] read to 0xffff8881f145efa1 of 1 bytes by task 733 on cpu 3: [ 525.038304] intel_rps_boost+0x67/0x1f0 [i915] [ 525.038535] i915_request_wait+0x562/0x5d0 [i915] [ 525.038764] i915_gem_object_wait_fence+0x81/0xa0 [i915] [ 525.038994] i915_gem_object_wait_reservation+0x489/0x520 [i915] [ 525.039224] i915_gem_wait_ioctl+0x167/0x2b0 [i915] [ 525.039241] drm_ioctl_kernel+0xe4/0x120 [ 525.039255] drm_ioctl+0x297/0x4c7 [ 525.039269] ksys_ioctl+0x89/0xb0 [ 525.039282] __x64_sys_ioctl+0x42/0x60 [ 525.039296] do_syscall_64+0x6e/0x2c0 [ 525.039311] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200309113623.24208-1-chris@chris-wilson.co.uk		2020-03-09 18:30:20 +00:00
..
accessibility
acpi	ACPI: PM: s2idle: Prevent spurious SCIs from waking up the system	2020-02-11 23:26:15 +01:00
amba
android	for-5.6/io_uring-vfs-2020-01-29	2020-01-29 18:53:37 -08:00
ata	libata-5.6-2020-02-05	2020-02-06 06:11:50 +00:00
atm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next	2020-01-28 16:02:33 -08:00
auxdisplay
base	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
bcma	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next	2020-01-28 16:02:33 -08:00
block	Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-02-08 13:26:41 -08:00
bluetooth	Bluetooth: btrtl: Use kvmalloc for FW allocations	2020-01-24 19:57:53 +01:00
bus	bus: moxtet: fix potential stack buffer overflow	2020-02-15 10:33:19 -08:00
cdrom
char	Minor bug fixes for IPMI	2020-02-16 13:05:46 -08:00
clk	ARM: SoC: late updates	2020-02-08 14:17:27 -08:00
clocksource	ARM: SoC: late updates	2020-02-08 14:17:27 -08:00
connector
counter
cpufreq	Merge branch 'pm-cpufreq'	2020-02-14 10:40:48 +01:00
cpuidle	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
crypto	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next	2020-01-28 16:02:33 -08:00
dax	dax: Get rid of fs_dax_get_by_host() helper	2020-01-16 09:52:27 -08:00
dca
devfreq	PM / devfreq: Add debugfs support with devfreq_summary file	2020-01-16 19:14:49 +09:00
dio
dma	ARM: Device-tree updates	2020-02-08 13:58:44 -08:00
dma-buf
edac	EDAC/sysfs: Remove csrow objects on errors	2020-02-13 13:29:41 +01:00
eisa
extcon
firewire
firmware	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
fpga
fsi
gnss
gpio	gpio: sifive: fix static checker warning	2020-02-10 13:54:17 +01:00
gpu	drm/i915/gt: Mark up intel_rps.active for racy reads	2020-03-09 18:30:20 +00:00
greybus
hid	drm pull for 5.6-rc1	2020-01-30 08:04:01 -08:00
hsi
hv	- Most of the commits here are work to enable host-initiated hibernation	2020-02-03 14:42:03 +00:00
hwmon	hwmon: (pmbus/xdpe12284) fix typo in compatible strings	2020-02-12 12:43:01 -08:00
hwspinlock	hwspinlock: sirf: Use devm_hwspin_lock_register() to register hwlock controller	2020-01-21 16:16:36 -08:00
hwtracing
i2c	Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2020-02-07 12:54:13 -08:00
i3c
ide	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
idle	intel_idle: Introduce 'states_off' module parameter	2020-02-03 11:57:18 +01:00
iio	chrome platform changes for 5.6	2020-02-04 07:17:41 +00:00
infiniband	IB/mlx5: Use div64_u64 for num_var_hw_entries calculation	2020-02-14 15:21:52 -04:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2020-02-15 16:49:25 -08:00
interconnect
iommu	IOMMU Updates for Linux v5.6	2020-02-05 17:49:54 +00:00
ipack
irqchip	irqchip/gic-v4.1: Avoid 64bit division for the sake of 32bit ARM	2020-02-09 15:47:37 -08:00
isdn	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
leds	leds: lm3532: add pointer to documentation and fix typo	2020-01-22 21:08:24 +01:00
lightnvm
macintosh	powerpc updates for 5.6	2020-02-04 13:06:46 +00:00
mailbox
mcb
md	block-5.6-2020-02-16	2020-02-16 12:35:52 -08:00
media	chrome platform changes for 5.6	2020-02-04 07:17:41 +00:00
memory	mvebu drivers for 5.6 (part 1)	2020-01-16 10:45:44 -08:00
memstick
message	Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net	2020-01-19 22:10:04 +01:00
mfd	chrome platform changes for 5.6	2020-02-04 07:17:41 +00:00
misc	Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2020-02-07 12:54:13 -08:00
mmc	ioremap changes for 5.6	2020-01-27 13:03:00 -08:00
mtd	treewide: remove redundant IS_ERR() before error code check	2020-02-04 03:05:27 +00:00
mux
net	net: hns3: fix a copying IPv6 address error in hclge_fd_get_flow_tuples()	2020-02-14 07:05:17 -08:00
nfc	Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net	2020-01-19 22:10:04 +01:00
ntb
nubus
nvdimm	mm: Cleanup __put_devmap_managed_page() vs ->page_free()	2020-01-31 10:30:37 -08:00
nvme	block-5.6-2020-02-16	2020-02-16 12:35:52 -08:00
nvmem	Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2020-02-07 12:54:13 -08:00
of	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
opp	ioremap changes for 5.6	2020-01-27 13:03:00 -08:00
oprofile
parisc	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
parport
pci	pci-v5.6-fixes-1	2020-02-06 14:17:38 +00:00
pcmcia
perf	perf/smmuv3: Use platform_get_irq_optional() for wired interrupt	2020-02-10 18:14:46 +00:00
phy	treewide: remove redundant IS_ERR() before error code check	2020-02-04 03:05:27 +00:00
pinctrl	pinctrl: fix pxa2xx.c build warnings	2020-02-04 03:05:24 +00:00
platform	Merge branch 'akpm' (patches from Andrew)	2020-02-04 07:24:48 +00:00
pnp	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
power	ARM: SoC platform updates	2020-02-08 13:55:25 -08:00
powercap
pps
ps3
ptp	Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net	2020-01-19 22:10:04 +01:00
pwm	pwm: Remove set but not set variable 'pwm'	2020-01-20 15:40:49 +01:00
rapidio
ras
regulator	- New Drivers	2020-02-03 14:51:57 +00:00
remoteproc	remoteproc: qcom: q6v5-mss: Improve readability of reset_assert	2020-01-24 09:34:07 -08:00
reset
rpmsg	rpmsg: add rpmsg support for mt8183 SCP.	2020-01-20 10:29:56 -08:00
rtc	chrome platform changes for 5.6	2020-02-04 07:17:41 +00:00
s390	fix style of SPDX License Identifier	2020-02-11 20:14:28 +01:00
sbus
scsi	SCSI misc on 20200208	2020-02-08 17:24:41 -08:00
sfi
sh
siox
slimbus
soc	soc/tegra: fuse: Fix build with Tegra194 configuration	2020-02-11 15:00:15 -08:00
soundwire	soundwire: cadence: fix kernel-doc parameter descriptions	2020-01-16 17:34:38 +05:30
spi	treewide: remove redundant IS_ERR() before error code check	2020-02-04 03:05:27 +00:00
spmi	spmi: pmic-arb: Set lockdep class for hierarchical irq domains	2020-02-10 13:16:04 +01:00
ssb
staging	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
target	SCSI misc on 20200129	2020-01-29 18:16:16 -08:00
tc	The main MIPS changes for 5.6:	2020-01-31 11:28:31 -08:00
tee	ARM: SoC-related driver updates	2020-02-08 14:04:19 -08:00
thermal	- Fix a SEVERE docs build failure for cpu idle cooling device (Randy Dunlap)	2020-01-31 14:39:21 -08:00
thunderbolt
tty	Kbuild updates for v5.6 (2nd)	2020-02-09 16:05:50 -08:00
uio
usb	Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-02-08 13:26:41 -08:00
vfio	VFIO updates for v5.6-rc1	2020-02-03 22:22:05 +00:00
vhost
video	drm-misc-next for 5.7:	2020-02-21 05:44:40 +10:00
virt
virtio	virtio_balloon: Fix memory leaks on errors in virtballoon_probe()	2020-02-06 03:40:27 -05:00
visorbus
vlynq
vme	Char/Misc driver changes for 5.6-rc1	2020-01-29 10:35:54 -08:00
w1	Char/Misc driver changes for 5.6-rc1	2020-01-29 10:35:54 -08:00
watchdog	linux-watchdog 5.6-rc1 tag	2020-02-07 12:30:16 -08:00
xen	xen: branch for v5.6-rc1	2020-02-05 17:44:14 +00:00
zorro	Kbuild updates for v5.6 (2nd)	2020-02-09 16:05:50 -08:00
Kconfig
Makefile