Dave Airlie d8636a2717 fbcon: fix race condition between console lock and cursor timer (v1.1) ... So we've had a fair few reports of fbcon handover breakage between efi/vesafb and i915 surface recently, so I dedicated a couple of days to finding the problem. Essentially the last thing we saw was the conflicting framebuffer message and that was all. So after much tracing with direct netconsole writes (printks under console_lock not so useful), I think I found the race. Thread A (driver load) Thread B (timer thread) unbind_con_driver -> | bind_con_driver -> | vc->vc_sw->con_deinit -> | fbcon_deinit -> | console_lock() | | | | fbcon_flashcursor timer fires | console_lock() <- blocked for A | | fbcon_del_cursor_timer -> del_timer_sync (BOOM) Of course because all of this is under the console lock, we never see anything, also since we also just unbound the active console guess what we never see anything. Hopefully this fixes the problem for anyone seeing vesafb->kms driver handoff. v1.1: add comment suggestion from Alan. Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>		2012-08-22 14:00:35 +10:00
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aty	fbdev updates for 3.6	2012-08-01 10:45:12 -07:00
backlight	Merge branch 'akpm' (Andrew's patch-bomb)	2012-07-30 17:25:34 -07:00
console	fbcon: fix race condition between console lock and cursor timer (v1.1)	2012-08-22 14:00:35 +10:00
exynos	fbdev updates for 3.6	2012-08-01 10:45:12 -07:00
geode
i810
intelfb
kyro
logo
matrox	i2c: Split I2C_M_NOSTART support out of I2C_FUNC_PROTOCOL_MANGLING	2012-05-30 10:55:34 +02:00
mb862xx
mbx	drivers/video: use correct __devexit_p annotation	2012-06-09 12:51:11 +00:00
msm
nvidia
omap
omap2	Merge branch 'for-florian' of git://gitorious.org/linux-omap-dss2/linux into fbdev-next	2012-07-25 08:55:46 +00:00
pnx4008
riva
savage	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-07-24 13:34:56 -07:00
sis	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-07-24 13:34:56 -07:00
vermilion
via
68328fb.c
acornfb.c
acornfb.h
amba-clcd.c
amifb.c
arcfb.c	video: Fix typo in drivers/video	2012-07-24 12:58:15 +02:00
arkfb.c
asiliantfb.c
atafb.c
atafb.h
atafb_iplan2p2.c
atafb_iplan2p4.c
atafb_iplan2p8.c
atafb_mfb.c
atafb_utils.h
atmel_lcdfb.c	video: Fix typo in drivers/video	2012-07-24 12:58:15 +02:00
au1100fb.c
au1100fb.h
au1200fb.c
au1200fb.h
auo_k190x.c
auo_k190x.h
auo_k1900fb.c
auo_k1901fb.c
bf54x-lq043fb.c
bf537-lq035.c
bfin-lq035q1-fb.c
bfin-t350mcqb-fb.c
bfin_adv7393fb.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-07-24 13:34:56 -07:00
bfin_adv7393fb.h
broadsheetfb.c	drivers/video: use correct __devexit_p annotation	2012-06-09 12:51:11 +00:00
bt431.h
bt455.h
bw2.c
c2p.h
c2p_core.h
c2p_iplan2.c
c2p_planar.c
carminefb.c
carminefb.h
carminefb_regs.h
cfbcopyarea.c
cfbfillrect.c
cfbimgblt.c
cg3.c
cg6.c
cg14.c
chipsfb.c
cirrusfb.c	video: Fix typo in drivers/video	2012-07-24 12:58:15 +02:00
clps711xfb.c
cobalt_lcdfb.c
controlfb.c
controlfb.h
cyber2000fb.c
cyber2000fb.h
da8xx-fb.c	da8xx-fb: fix compile issue due to missing include	2012-07-29 16:47:40 +00:00
dnfb.c
edid.h
efifb.c
ep93xx-fb.c
epson1355fb.c	fb: epson1355fb: Fix section mismatch	2012-07-24 20:54:35 +00:00
fb-puv3.c
fb_ddc.c
fb_defio.c	fb_defio: Push file_update_time() into fb_deferred_io_mkwrite()	2012-07-31 01:02:44 +04:00
fb_draw.h	fbdev: Make pixel_to_pat() failure mode more friendly	2012-07-29 12:25:06 +00:00
fb_notify.c
fb_sys_fops.c
fbcmap.c
fbcvt.c
fbmem.c	fbdev: add events for early fb event support	2012-05-29 16:22:28 -07:00
fbmon.c
fbsysfs.c	fb: handle NULL pointers in framebuffer release	2012-05-29 13:00:03 +00:00
ffb.c
fm2fb.c
fsl-diu-fb.c
g364fb.c
gbefb.c
grvga.c	grvga: Fix error handling issues	2012-07-08 14:03:17 +00:00
gxt4500.c
hecubafb.c
hgafb.c
hitfb.c
hpfb.c
i740_reg.h
i740fb.c	video: Fix typo in drivers/video	2012-07-24 12:58:15 +02:00
igafb.c
imsttfb.c
imxfb.c
jz4740_fb.c
Kconfig
leo.c
macfb.c
macmodes.c
macmodes.h
Makefile
maxinefb.c
metronomefb.c
modedb.c
mx3fb.c	mx3fb: avoid screen flash when panning with fb_set_var	2012-06-27 06:59:51 +00:00
mxsfb.c	video: mxsfb: add simple device tree probe	2012-07-03 13:22:37 +08:00
n411.c
neofb.c
nuc900fb.c
nuc900fb.h
offb.c
output.c
p9100.c
platinumfb.c
platinumfb.h
pm2fb.c
pm3fb.c
pmag-aa-fb.c
pmag-ba-fb.c
pmagb-b-fb.c
ps3fb.c
pvr2fb.c
pxa3xx-gcu.c
pxa3xx-gcu.h
pxa168fb.c
pxa168fb.h
pxafb.c
pxafb.h
q40fb.c
s1d13xxxfb.c
s3c-fb.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2012-07-24 13:34:56 -07:00
s3c2410fb.c
s3c2410fb.h
s3fb.c	s3fb: Add Virge/MX (86C260)	2012-07-08 14:03:50 +00:00
sa1100fb.c
sa1100fb.h
sbuslib.c
sbuslib.h
sgivwfb.c
sh7760fb.c
sh_mipi_dsi.c	fbdev: sh_mipi_dsi: fix a section mismatch	2012-06-20 10:02:53 +02:00
sh_mobile_hdmi.c
sh_mobile_lcdcfb.c	fbdev: sh_mobile_lcdc: Fix vertical panning step	2012-07-29 01:17:07 +00:00
sh_mobile_lcdcfb.h	fbdev: sh_mobile_lcdc: Fix pan offset computation in YUV mode	2012-07-19 12:15:26 +02:00
sh_mobile_meram.c	sh_mobile_meram: Add direct MERAM allocation API	2012-07-19 02:05:22 +02:00
skeletonfb.c
sm501fb.c
smscufx.c	fbdev updates for 3.6	2012-08-01 10:45:12 -07:00
sstfb.c
sticore.h
stifb.c
sunxvr500.c	video: Fix typo in drivers/video	2012-07-24 12:58:15 +02:00
sunxvr1000.c
sunxvr2500.c
svgalib.c
syscopyarea.c
sysfillrect.c
sysimgblt.c
tcx.c
tdfxfb.c
tgafb.c
tmiofb.c
tridentfb.c
udlfb.c	fbdev updates for 3.5	2012-06-01 16:57:51 -07:00
uvesafb.c
valkyriefb.c
valkyriefb.h
vesafb.c
vfb.c
vga16fb.c
vgastate.c
vt8500lcdfb.c
vt8500lcdfb.h
vt8623fb.c
w100fb.c	video: w100fb: Reduce sleep mode battery discharge	2012-07-08 14:03:02 +00:00
w100fb.h
wm8505fb.c
wm8505fb_regs.h
wmt_ge_rops.c
wmt_ge_rops.h
xen-fbfront.c
xilinxfb.c