linux-sg2042/drivers
Jiang Liu a868e6b7b6 iommu/vt-d: keep shared resources when failed to initialize iommu devices
Data structure drhd->iommu is shared between DMA remapping driver and
interrupt remapping driver, so DMA remapping driver shouldn't release
drhd->iommu when it failed to initialize IOMMU devices. Otherwise it
may cause invalid memory access to the interrupt remapping driver.

Sample stack dump:
[   13.315090] BUG: unable to handle kernel paging request at ffffc9000605a088
[   13.323221] IP: [<ffffffff81461bac>] qi_submit_sync+0x15c/0x400
[   13.330107] PGD 82f81e067 PUD c2f81e067 PMD 82e846067 PTE 0
[   13.336818] Oops: 0002 [#1] SMP
[   13.340757] Modules linked in:
[   13.344422] CPU: 0 PID: 4 Comm: kworker/0:0 Not tainted 3.13.0-rc1-gerry+ #7
[   13.352474] Hardware name: Intel Corporation LH Pass ........../SVRBD-ROW_T,                                               BIOS SE5C600.86B.99.99.x059.091020121352 09/10/2012
[   13.365659] Workqueue: events work_for_cpu_fn
[   13.370774] task: ffff88042ddf00d0 ti: ffff88042ddee000 task.ti: ffff88042dde                                              e000
[   13.379389] RIP: 0010:[<ffffffff81461bac>]  [<ffffffff81461bac>] qi_submit_sy                                              nc+0x15c/0x400
[   13.389055] RSP: 0000:ffff88042ddef940  EFLAGS: 00010002
[   13.395151] RAX: 00000000000005e0 RBX: 0000000000000082 RCX: 0000000200000025
[   13.403308] RDX: ffffc9000605a000 RSI: 0000000000000010 RDI: ffff88042ddb8610
[   13.411446] RBP: ffff88042ddef9a0 R08: 00000000000005d0 R09: 0000000000000001
[   13.419599] R10: 0000000000000000 R11: 000000000000005d R12: 000000000000005c
[   13.427742] R13: ffff88102d84d300 R14: 0000000000000174 R15: ffff88042ddb4800
[   13.435877] FS:  0000000000000000(0000) GS:ffff88043de00000(0000) knlGS:00000                                              00000000000
[   13.445168] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.451749] CR2: ffffc9000605a088 CR3: 0000000001a0b000 CR4: 00000000000407f0
[   13.459895] Stack:
[   13.462297]  ffff88042ddb85d0 000000000000005d ffff88042ddef9b0 0000000000000                                              5d0
[   13.471147]  00000000000005c0 ffff88042ddb8000 000000000000005c 0000000000000                                              015
[   13.480001]  ffff88042ddb4800 0000000000000282 ffff88042ddefa40 ffff88042ddef                                              ac0
[   13.488855] Call Trace:
[   13.491771]  [<ffffffff8146848d>] modify_irte+0x9d/0xd0
[   13.497778]  [<ffffffff8146886d>] intel_setup_ioapic_entry+0x10d/0x290
[   13.505250]  [<ffffffff810a92a6>] ? trace_hardirqs_on_caller+0x16/0x1e0
[   13.512824]  [<ffffffff810346b0>] ? default_init_apic_ldr+0x60/0x60
[   13.519998]  [<ffffffff81468be0>] setup_ioapic_remapped_entry+0x20/0x30
[   13.527566]  [<ffffffff8103683a>] io_apic_setup_irq_pin+0x12a/0x2c0
[   13.534742]  [<ffffffff8136673b>] ? acpi_pci_irq_find_prt_entry+0x2b9/0x2d8
[   13.544102]  [<ffffffff81037fd5>] io_apic_setup_irq_pin_once+0x85/0xa0
[   13.551568]  [<ffffffff8103816f>] ? mp_find_ioapic_pin+0x8f/0xf0
[   13.558434]  [<ffffffff81038044>] io_apic_set_pci_routing+0x34/0x70
[   13.565621]  [<ffffffff8102f4cf>] mp_register_gsi+0xaf/0x1c0
[   13.572111]  [<ffffffff8102f5ee>] acpi_register_gsi_ioapic+0xe/0x10
[   13.579286]  [<ffffffff8102f33f>] acpi_register_gsi+0xf/0x20
[   13.585779]  [<ffffffff81366b86>] acpi_pci_irq_enable+0x171/0x1e3
[   13.592764]  [<ffffffff8146d771>] pcibios_enable_device+0x31/0x40
[   13.599744]  [<ffffffff81320e9b>] do_pci_enable_device+0x3b/0x60
[   13.606633]  [<ffffffff81322248>] pci_enable_device_flags+0xc8/0x120
[   13.613887]  [<ffffffff813222f3>] pci_enable_device+0x13/0x20
[   13.620484]  [<ffffffff8132fa7e>] pcie_port_device_register+0x1e/0x510
[   13.627947]  [<ffffffff810a92a6>] ? trace_hardirqs_on_caller+0x16/0x1e0
[   13.635510]  [<ffffffff810a947d>] ? trace_hardirqs_on+0xd/0x10
[   13.642189]  [<ffffffff813302b8>] pcie_portdrv_probe+0x58/0xc0
[   13.648877]  [<ffffffff81323ba5>] local_pci_probe+0x45/0xa0
[   13.655266]  [<ffffffff8106bc44>] work_for_cpu_fn+0x14/0x20
[   13.661656]  [<ffffffff8106fa79>] process_one_work+0x369/0x710
[   13.668334]  [<ffffffff8106fa02>] ? process_one_work+0x2f2/0x710
[   13.675215]  [<ffffffff81071d56>] ? worker_thread+0x46/0x690
[   13.681714]  [<ffffffff81072194>] worker_thread+0x484/0x690
[   13.688109]  [<ffffffff81071d10>] ? cancel_delayed_work_sync+0x20/0x20
[   13.695576]  [<ffffffff81079c60>] kthread+0xf0/0x110
[   13.701300]  [<ffffffff8108e7bf>] ? local_clock+0x3f/0x50
[   13.707492]  [<ffffffff81079b70>] ? kthread_create_on_node+0x250/0x250
[   13.714959]  [<ffffffff81574d2c>] ret_from_fork+0x7c/0xb0
[   13.721152]  [<ffffffff81079b70>] ? kthread_create_on_node+0x250/0x250

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
2014-01-09 12:43:40 +01:00
..
accessibility
acpi Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-12-29 13:35:04 -08:00
amba
ata Merge branch 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2013-12-24 09:35:58 -08:00
atm atm: idt77252: fix dev refcnt leak 2013-11-19 15:53:02 -05:00
auxdisplay
base Revert "cpufreq: suspend governors on system suspend/hibernate" 2013-12-08 01:04:17 +01:00
bcma Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-11-13 17:40:34 +09:00
block Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2013-12-24 10:06:03 -08:00
bluetooth
bus Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2013-11-14 08:51:29 +09:00
cdrom
char Char/Misc driver fixes for 3.13-rc3 2013-12-08 18:47:25 -08:00
clk mfd: s2mps11: Fix build after regmap field rename in sec-core.c 2013-12-16 11:30:39 +00:00
clocksource clocksource: dw_apb_timer_of: Fix support for dts binding "snps,dw-apb-timer" 2013-12-10 19:49:18 +01:00
connector connector: improved unaligned access error fix 2013-11-14 17:19:20 -05:00
cpufreq cpufreq: Use CONFIG_CPU_FREQ_DEFAULT_* to set initial policy for setpolicy drivers 2013-12-22 00:51:52 +01:00
cpuidle cpuidle: Check for dev before deregistering it. 2013-12-03 22:05:22 +01:00
crypto crypto: talitos - fix aead sglen for case 'dst != src' 2013-11-28 22:25:17 +08:00
dca
devfreq
dio
dma net_dma: mark broken 2013-12-18 12:53:43 -08:00
edac sb_edac: Shut up compiler warning when EDAC_DEBUG is enabled 2013-11-30 12:26:36 +01:00
eisa
extcon extcon: remove freed groups caused the panic or warning in unregister flow 2013-11-26 15:17:23 +09:00
firewire firewire: sbp2: bring back WRITE SAME support 2013-12-15 16:32:32 +01:00
firmware Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-12-29 13:35:04 -08:00
fmc
gpio GPIO fixes for the v3.13 development cycle: 2013-12-17 11:47:40 -08:00
gpu Merge tag 'drm-intel-fixes-2013-12-18' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes 2013-12-23 10:35:57 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2013-12-13 13:21:28 -08:00
hsi
hv
hwmon hwmon fixes for 3.13-rc4 2013-12-12 11:05:19 -08:00
hwspinlock
i2c i2c: imx: Check the return value from clk_prepare_enable() 2013-12-12 22:48:22 +01:00
ide More ACPI and power management updates for 3.13-rc1 2013-11-20 13:25:04 -08:00
idle x86 idle: Repair large-server 50-watt idle-power regression 2013-12-19 11:47:39 -08:00
iio iio:adc:ad7887 Fix channel reported endianness from cpu to big endian 2013-12-17 20:37:14 +00:00
infiniband Last batch of InfiniBand/RDMA changes for 3.13 / 2014: 2013-12-23 17:23:42 -08:00
input Input: adxl34x - Fix bug in definition of ADXL346_2D_ORIENT 2013-12-09 22:23:31 -08:00
iommu iommu/vt-d: keep shared resources when failed to initialize iommu devices 2014-01-09 12:43:40 +01:00
ipack
irqchip Renesas ARM based SoC fixes for v3.13 2013-12-20 11:28:30 -08:00
isdn net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
leds leds: pwm: Fix for deferred probe in DT booted mode 2013-12-02 11:53:17 -08:00
lguest
macintosh powerpc/windfarm: Fix XServe G5 fan control Makefile issue 2013-11-27 11:35:47 +11:00
mailbox
md Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2013-12-24 10:06:03 -08:00
media [media] videobuf2-dma-sg: fix possible memory leak 2013-12-10 05:40:57 -02:00
memory
memstick tree-wide: use reinit_completion instead of INIT_COMPLETION 2013-11-15 09:32:21 +09:00
message drivers/message/i2o/driver.c: add missing destroy_workqueue() on error in i2o_driver_register() 2013-11-13 12:09:26 +09:00
mfd mfd/rtc: s5m: fix register updating by adding regmap for RTC 2013-12-12 18:19:26 -08:00
misc Char/Misc driver fixes for 3.13-rc3 2013-12-08 18:47:25 -08:00
mmc mmc: omap: Fix I2C dependency and make driver usable with device tree 2013-11-26 15:51:16 -08:00
mtd mtd: nand: pxa3xx: Use info->use_dma to release DMA resources 2013-12-12 15:02:04 -08:00
net Merge branch 'fixes-for-3.13' of git://gitorious.org/linux-can/linux-can 2013-12-17 17:21:30 -05:00
nfc
ntb NTB driver bug fixes to address a missed call to pci_enable_msix, 2013-11-26 11:15:12 -08:00
nubus
of Merge branch 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm 2013-11-14 07:55:21 +09:00
oprofile
parisc
parport Kconfig cleanups for v3.13 2013-11-15 14:05:15 -08:00
pci Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-12-15 11:56:47 -08:00
pcmcia DeviceTree updates for 3.13. This is a bit larger pull request than 2013-11-12 16:52:17 +09:00
phy phy: kconfig: add depends on "USB_PHY" to OMAP_USB2 and TWL4030_USB 2013-12-10 12:53:30 -08:00
pinctrl Merge branches 'powercap' and 'acpi-lpss' with new device IDs 2013-12-27 00:43:24 +01:00
platform sony-laptop: do not scribble keyboard backlight registers on resume 2013-11-26 13:03:36 +09:00
pnp PNP: fix restoring devices after hibernation 2013-12-05 02:01:55 +01:00
power Highlights: 2013-11-18 15:35:09 -08:00
powercap powercap / RAPL: add support for ValleyView Soc 2013-12-22 01:27:51 +01:00
pps drivers/pps/clients/pps-gpio.c: remove redundant of_match_ptr 2013-11-13 12:09:35 +09:00
ps3
ptp
pwm
rapidio
regulator mfd: s2mps11: Fix build after regmap field rename in sec-core.c 2013-12-16 11:30:39 +00:00
remoteproc
reset
rpmsg
rtc mfd/rtc: s5m: fix register updating by adding regmap for RTC 2013-12-12 18:19:26 -08:00
s390 s390/sclp: replace uninitialized early_event_mask_sccb variable with sccb_early 2013-12-02 15:31:07 +01:00
sbus
scsi qla2xxx: Fix scsi_host leak on qlt_lport_register callback failure 2013-12-19 14:50:17 -08:00
sfi
sh
sn
spi Merge remote-tracking branches 'spi/fix/bcm2835', 'spi/fix/bcm63xx', 'spi/fix/mpc512x-psc', 'spi/fix/mxs', 'spi/fix/pxa2xx', 'spi/fix/qspi', 'spi/fix/rspi' and 'spi/fix/txx9' into spi-linus 2013-11-28 11:31:35 +00:00
ssb
staging imx-drm: imx-drm-core: improve safety of imx_drm_add_crtc() 2013-12-17 17:12:55 -08:00
target target: Remove extra percpu_ref_init 2013-12-19 14:49:54 -08:00
tc
thermal Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-11-19 15:50:47 -08:00
tty tty: xuartps: Properly guard sysrq specific code 2013-12-17 16:02:25 -08:00
uio uio: we cannot mmap unaligned page contents 2013-12-02 11:50:37 -08:00
usb usb: ohci-at91: fix irq and iomem resource retrieval 2013-12-17 13:22:36 -08:00
uwb
vfio
vhost Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-11-22 10:52:03 -08:00
video Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-12-09 19:21:39 -08:00
virt
virtio virtio_balloon: update_balloon_size(): update correct field 2013-12-05 13:12:39 +10:30
vlynq
vme
w1 drivers/w1/masters/w1-gpio.c: use dev_get_platdata() 2013-11-15 09:32:21 +09:00
watchdog sc1200_wdt: Fix oops 2013-12-10 08:48:15 +01:00
xen Bug-fixes: 2013-12-20 09:34:54 -08:00
zorro
Kconfig ACPI and power management updates for 3.13-rc1 2013-11-14 13:41:48 +09:00
Makefile ACPI and power management updates for 3.13-rc1 2013-11-14 13:41:48 +09:00