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linux-stable/drivers/char
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Ingo Molnar 0f74964627 [PATCH] lockdep: HPET/RTC fix 
Joseph Fannin reported that hpet_rtc_interrupt() enables hardirqs
in irq context:

[   25.628000]  [<c014af4e>] trace_hardirqs_on+0xce/0x200
[   25.628000]  [<c036cf21>] _spin_unlock_irq+0x31/0x70
[   25.628000]  [<c0296584>] rtc_get_rtc_time+0x44/0x1a0
[   25.628000]  [<c01198bb>] hpet_rtc_interrupt+0x21b/0x280
[   25.628000]  [<c0161141>] handle_IRQ_event+0x31/0x70
[   25.628000]  [<c0162d37>] handle_edge_irq+0xe7/0x210
[   25.628000]  [<c0106192>] do_IRQ+0x92/0x120
[   25.628000]  [<c0104121>] common_interrupt+0x25/0x2c

the call of rtc_get_rtc_time() is highly suspect. At a minimum we
need the patch below to save/restore hardirq state.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Joseph Fannin <jfannin@gmail.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-12 12:52:55 -07:00
..
agp
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
drm
[PATCH] irq-flags: drivers/drm: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
ftape
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
hw_random
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
ip2
[PATCH] Add Computone IntelliPort Plus serial hotplug support
2006-07-10 13:24:13 -07:00
ipmi
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
mwave
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
pcmcia
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
rio
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
tpm
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
watchdog
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
.gitignore
gitignore: misc files
2006-01-01 22:21:50 +01:00
amiserial.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
applicom.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
applicom.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
cd1865.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ChangeLog
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
consolemap.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
cp437.uni
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
cs5535_gpio.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
cyclades.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
decserial.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
defkeymap.c_shipped
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
defkeymap.map
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
digi1.h
[PATCH] Clean up the old digi support and rescue it
2005-09-07 16:57:20 -07:00
digi.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
digiFep1.h
[PATCH] Clean up the old digi support and rescue it
2005-09-07 16:57:20 -07:00
digiPCI.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ds1286.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
ds1302.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
ds1620.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
dsp56k.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
dtlk.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
ec3104_keyb.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
efirtc.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
epca.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
epca.h
[PATCH] epca iomem annotations + several missing readw()
2005-09-16 10:38:10 -07:00
epcaconfig.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
esp.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
generic_nvram.c
[PATCH] powerpc: Kill _machine and hard-coded platform numbers
2006-03-28 23:15:54 +11:00
generic_serial.c
[PATCH] sem2mutex: serial ->port_write_mutex
2006-03-23 07:38:14 -08:00
genrtc.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
hangcheck-timer.c
[PATCH] hangcheck: remove monotomic_clock on x86
2006-06-26 09:58:20 -07:00
hpet.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
hvc_console.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
hvc_console.h
[PATCH] powerpc: hvc_console updates
2006-03-28 16:45:26 +11:00
hvc_rtas.c
[PATCH] powerpc: Cleanup hvc_rtas.c a little
2006-06-09 21:24:20 +10:00
hvc_vio.c
[PATCH] powerpc: hvc_console updates
2006-03-28 16:45:26 +11:00
hvcs.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
hvsi.c
[PATCH] powerpc: fix trigger handling in the new irq code
2006-07-10 13:24:20 -07:00
i8k.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
ip27-rtc.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
isicom.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
istallion.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
ite_gpio.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
Kconfig
[PATCH] GPIO for SCx200 & PC-8736x: x86-only
2006-06-29 10:26:21 -07:00
keyboard.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
lcd.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
lcd.h
Resurrect Cobalt support for 2.6.
2005-10-29 19:30:42 +01:00
lp.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
Makefile
[PATCH] chardev: GPIO for SCx200 & PC-8736x: add proper Kconfig, Makefile entries
2006-06-27 17:32:43 -07:00
mbcs.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
mbcs.h
[PATCH] mbcs trivial user annotations
2005-05-04 07:33:13 -07:00
mem.c
[PATCH] make valid_mmap_phys_addr_range() take a pfn
2006-07-10 13:24:25 -07:00
misc.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
mmtimer.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
moxa.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
mxser.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
mxser.h
[PATCH] Typo fixes
2006-03-28 09:16:08 -08:00
n_hdlc.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
n_r3964.c
[PATCH] R3964: fix GFP_KERNEL allocations in timer function
2006-06-25 10:01:17 -07:00
n_tty.c
[PATCH] remove TTY_DONT_FLIP
2006-06-28 14:59:05 -07:00
nsc_gpio.c
[PATCH] chardev: GPIO for SCx200 & PC-8736x: display pin values in/out in gpio_dump
2006-06-27 17:32:43 -07:00
nvram.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
nwbutton.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
nwbutton.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
nwflash.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
pc8736x_gpio.c
[PATCH] pc8736x_gpio: fix re-modprobe errors: fix/finish cdev-init
2006-07-10 13:24:26 -07:00
ppdev.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
pty.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
qtronix.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
qtronixmap.c_shipped
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
qtronixmap.map
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
random.c
[PATCH] lockdep: locking init debugging improvement
2006-07-03 15:27:02 -07:00
raw.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
riscom8_reg.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
riscom8.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
riscom8.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
rocket_int.h
[PATCH] drivers/char/rocket.c: cleanups
2005-06-25 16:25:04 -07:00
rocket.c
[PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV
2006-06-26 12:25:09 -07:00
rocket.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
rtc.c
[PATCH] lockdep: HPET/RTC fix
2006-07-12 12:52:55 -07:00
s3c2410-rtc.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
scan_keyb.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
scan_keyb.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
scc.h
[PATCH] m68k: static vs. extern in scc.h
2006-01-12 09:09:00 -08:00
scx200_gpio.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
selection.c
[PATCH] TTY layer buffering revamp
2006-01-10 08:01:59 -08:00
ser_a2232.c
[PATCH] sem2mutex: serial ->port_write_mutex
2006-03-23 07:38:14 -08:00
ser_a2232.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ser_a2232fw.ax
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ser_a2232fw.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
serial167.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
snsc_event.c
[PATCH] snsc: switch from force_sig to kill_proc
2006-07-10 13:24:26 -07:00
snsc.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
snsc.h
[IA64-SGI] Handle SC env. powerdown events
2006-01-26 13:32:26 -08:00
sonypi.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
specialix_io8.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
specialix.c
[PATCH] Add Specialix IO8+ card support hotplug support
2006-07-10 13:24:13 -07:00
stallion.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
sx.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
sx.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sxboards.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sxwindow.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
synclink_gt.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
synclink.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
synclinkmp.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
sysrq.c
[PATCH] lockdep: print all lock classes on SysRQ-D
2006-07-03 15:27:04 -07:00
tb0219.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
tipar.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
tlclk.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
toshiba.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
tty_io.c
[PATCH] sched: cleanup, remove task_t, convert to struct task_struct
2006-07-03 15:27:11 -07:00
tty_ioctl.c
[PATCH] coverity: tty_ldisc_ref return null check
2005-06-28 21:20:34 -07:00
vc_screen.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
viocons.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
viotape.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
vme_scc.c
[PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
2006-07-02 13:58:49 -07:00
vr41xx_giu.c
[PATCH] make more file_operation structs static
2006-07-03 15:26:59 -07:00
vt_ioctl.c
Remove obsolete #include <linux/config.h>
2006-06-30 19:25:36 +02:00
vt.c
[PATCH] vt: Decrement ref count of the VT backend on deallocation
2006-07-03 15:26:59 -07:00