Mike Marciniszyn 09dc9cd652 IB/qib: fix mcast detach when qp not attached ... The code produces the following trace: [1750924.419007] general protection fault: 0000 [#3] SMP [1750924.420364] Modules linked in: nfnetlink autofs4 rpcsec_gss_krb5 nfsv4 dcdbas rfcomm bnep bluetooth nfsd auth_rpcgss nfs_acl dm_multipath nfs lockd scsi_dh sunrpc fscache radeon ttm drm_kms_helper drm serio_raw parport_pc ppdev i2c_algo_bit lpc_ich ipmi_si ib_mthca ib_qib dca lp parport ib_ipoib mac_hid ib_cm i3000_edac ib_sa ib_uverbs edac_core ib_umad ib_mad ib_core ib_addr tg3 ptp dm_mirror dm_region_hash dm_log psmouse pps_core [1750924.420364] CPU: 1 PID: 8401 Comm: python Tainted: G D 3.13.0-39-generic #66-Ubuntu [1750924.420364] Hardware name: Dell Computer Corporation PowerEdge 860/0XM089, BIOS A04 07/24/2007 [1750924.420364] task: ffff8800366a9800 ti: ffff88007af1c000 task.ti: ffff88007af1c000 [1750924.420364] RIP: 0010:[<ffffffffa0131d51>] [<ffffffffa0131d51>] qib_mcast_qp_free+0x11/0x50 [ib_qib] [1750924.420364] RSP: 0018:ffff88007af1dd70 EFLAGS: 00010246 [1750924.420364] RAX: 0000000000000001 RBX: ffff88007b822688 RCX: 000000000000000f [1750924.420364] RDX: ffff88007b822688 RSI: ffff8800366c15a0 RDI: 6764697200000000 [1750924.420364] RBP: ffff88007af1dd78 R08: 0000000000000001 R09: 0000000000000000 [1750924.420364] R10: 0000000000000011 R11: 0000000000000246 R12: ffff88007baa1d98 [1750924.420364] R13: ffff88003ecab000 R14: ffff88007b822660 R15: 0000000000000000 [1750924.420364] FS: 00007ffff7fd8740(0000) GS:ffff88007fc80000(0000) knlGS:0000000000000000 [1750924.420364] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [1750924.420364] CR2: 00007ffff597c750 CR3: 000000006860b000 CR4: 00000000000007e0 [1750924.420364] Stack: [1750924.420364] ffff88007b822688 ffff88007af1ddf0 ffffffffa0132429 000000007af1de20 [1750924.420364] ffff88007baa1dc8 ffff88007baa0000 ffff88007af1de70 ffffffffa00cb313 [1750924.420364] 00007fffffffde88 0000000000000000 0000000000000008 ffff88003ecab000 [1750924.420364] Call Trace: [1750924.420364] [<ffffffffa0132429>] qib_multicast_detach+0x1e9/0x350 [ib_qib] [1750924.568035] [<ffffffffa00cb313>] ? ib_uverbs_modify_qp+0x323/0x3d0 [ib_uverbs] [1750924.568035] [<ffffffffa0092d61>] ib_detach_mcast+0x31/0x50 [ib_core] [1750924.568035] [<ffffffffa00cc213>] ib_uverbs_detach_mcast+0x93/0x170 [ib_uverbs] [1750924.568035] [<ffffffffa00c61f6>] ib_uverbs_write+0xc6/0x2c0 [ib_uverbs] [1750924.568035] [<ffffffff81312e68>] ? apparmor_file_permission+0x18/0x20 [1750924.568035] [<ffffffff812d4cd3>] ? security_file_permission+0x23/0xa0 [1750924.568035] [<ffffffff811bd214>] vfs_write+0xb4/0x1f0 [1750924.568035] [<ffffffff811bdc49>] SyS_write+0x49/0xa0 [1750924.568035] [<ffffffff8172f7ed>] system_call_fastpath+0x1a/0x1f [1750924.568035] Code: 66 2e 0f 1f 84 00 00 00 00 00 31 c0 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb 48 8b 7f 10 <f0> ff 8f 40 01 00 00 74 0e 48 89 df e8 8e f8 06 e1 5b 5d c3 0f [1750924.568035] RIP [<ffffffffa0131d51>] qib_mcast_qp_free+0x11/0x50 [ib_qib] [1750924.568035] RSP <ffff88007af1dd70> [1750924.650439] ---[ end trace 73d5d4b3f8ad4851 ] The fix is to note the qib_mcast_qp that was found. If none is found, then return EINVAL indicating the error. Cc: <stable@vger.kernel.org> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reported-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>		2016-01-19 13:09:44 -05:00
..
accessibility
acpi	nfit: acpi_nfit_notify(): Do not leave device locked	2015-12-11 14:24:26 -08:00
amba
android
ata	ata/sata_fsl.c: add ATA_FLAG_NO_LOG_PAGE to blacklist the controller for log page reads	2015-12-07 10:25:57 -05:00
atm
auxdisplay
base	Merge branches 'powercap', 'pm-cpufreq' and 'pm-domains'	2015-12-14 22:58:57 +01:00
bcma
block	xen: bug fixes for 4.4-rc5	2015-12-18 12:24:52 -08:00
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-11-10 18:11:41 -08:00
bus	Merge branch 'x15-audio-fixes' into omap-for-v4.4/fixes	2015-11-12 09:58:21 -08:00
cdrom
char	ipmi: move timer init to before irq is setup	2015-12-09 13:13:06 -06:00
clk	ARM: SoC fixes for 4.4-rc	2015-12-12 16:43:44 -08:00
clocksource	clocksource: Mmio: remove artificial 32bit limitation	2015-12-10 19:37:18 +01:00
connector	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
cpufreq	Merge branches 'powercap', 'pm-cpufreq' and 'pm-domains'	2015-12-14 22:58:57 +01:00
cpuidle	cpuidle: mvebu: disable the bind/unbind attributes and use builtin_platform_driver	2015-10-23 12:40:48 +02:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2015-12-05 10:46:44 -08:00
dca
devfreq
dio
dma	dmaengine: at_xdmac: fix at_xdmac_prep_dma_memcpy()	2015-12-10 09:48:01 +05:30
dma-buf	dma-buf/fence: add fence_wait_any_timeout function v2	2015-10-30 01:16:16 -04:00
edac	asm-generic cleanups	2015-11-06 14:22:15 -08:00
eisa
extcon	Merge branches 'ib-extcon-mfd-4.4', 'ib-mfd-i2c-v4.4', 'ib-mfd-power-4.4', 'ib-mfd-regmap-4.4' and 'ib-mfd-regulator-4.4' into ibs-for-mfd-merged	2015-10-26 14:48:22 +00:00
firewire	IEEE 1394 subsystem patch:	2015-11-11 10:21:34 -08:00
firmware	ARM: SoC driver updates for v4.4	2015-11-10 15:00:03 -08:00
fmc
fpga	fpga manager: Fix firmware resource leak on error	2015-11-24 15:25:46 -08:00
gpio	gpio: revert get() to non-errorprogating behaviour	2015-12-17 15:48:29 +01:00
gpu	drm: Don't overwrite UNVERFIED mode status to OK	2015-12-15 11:00:10 +10:00
hid	USB fixes for 4.4-rc5	2015-12-13 11:58:18 -08:00
hsi	hsi: controllers:remove redundant code	2015-10-30 16:10:40 +01:00
hv	drivers/hv: share Hyper-V SynIC constants with userspace	2015-11-04 16:24:33 +01:00
hwmon	hwmon: (sht15) Select CONFIG_BITREVERSE	2015-12-18 08:19:52 -08:00
hwspinlock
hwtracing	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-11-13 20:04:17 -08:00
i2c	i2c: rcar: disable runtime PM correctly in slave mode	2015-12-19 12:00:37 +01:00
ide	mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM	2015-11-06 17:50:42 -08:00
idle
iio	iio: adc: spmi-vadc: add missing of_node_put	2015-11-21 18:24:44 +00:00
infiniband	IB/qib: fix mcast detach when qp not attached	2016-01-19 13:09:44 -05:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2015-12-19 09:51:11 -08:00
iommu	IOMMU Fixes for Linux v4.4-rc5	2015-12-18 12:38:35 -08:00
ipack
irqchip	irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB	2015-12-01 22:50:16 +01:00
isdn	ser_gigaset: remove unnecessary kfree() calls from release method	2015-12-15 13:24:21 -05:00
leds	spi: Updates for v4.4	2015-11-05 13:15:12 -08:00
lguest
lightnvm	lightnvm: do not compile in debugging by default	2015-12-07 09:14:20 -07:00
macintosh
mailbox	mailbox: mailbox-test: avoid reading iomem twice	2015-11-04 14:03:04 +05:30
mcb	mcb: Destroy IDA on module unload	2015-10-29 09:02:16 +09:00
md	Fix remove_and_add_spares removes drive added as spare in slot_store	2015-12-18 15:19:16 +11:00
media	media fixes for v4.4-rc6	2015-12-18 15:41:35 -08:00
memory	ARM: SoC driver updates for v4.4	2015-11-10 15:00:03 -08:00
memstick
message	SCSI queue for 4.4.	2015-11-12 07:06:18 -05:00
mfd	asm-generic cleanups	2015-11-06 14:22:15 -08:00
misc	cxl: Set endianess of kernel contexts	2015-12-08 16:57:01 +11:00
mmc	mmc: remove bondage between REQ_META and reliable write	2015-11-09 14:04:52 +01:00
mtd	doc: dt: mtd: partitions: add compatible property to "partitions" node	2015-12-08 17:10:20 -08:00
net	net/mlx5_core: Add setting ATOMIC endian mode	2015-12-24 00:17:31 -05:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-11-10 18:11:41 -08:00
ntb	NTB: fix 32-bit compiler warning	2015-11-08 16:24:43 -05:00
nubus
nvdimm	libnvdimm, pmem: fix size trim in pmem_direct_access()	2015-11-12 09:55:23 -08:00
nvme	lightnvm: replace req queue with nvmdev for lld	2015-12-07 09:14:19 -07:00
nvmem
of	of/irq: Export of_irq_find_parent again	2015-12-09 09:08:36 -06:00
oprofile
parisc	parisc iommu: fix panic due to trying to allocate too large region	2015-12-12 16:07:25 +01:00
parport
pci	PCI updates for v4.4:	2015-12-09 09:26:06 -08:00
pcmcia
perf	arm64 updates for 4.4:	2015-11-04 14:47:13 -08:00
phy	phy: core: Get a refcount to phy in devm_of_phy_get_by_index()	2015-12-07 18:44:02 +05:30
pinctrl	pinctrl: bcm2835: Fix initial value for direction_output	2015-12-14 11:31:20 +01:00
platform	platform/chrome: Branch for v4.4	2015-11-13 21:53:18 -08:00
pnp
power	- New Device Support	2015-11-06 10:23:50 -08:00
powercap	powercap / RAPL: fix BIOS lock check	2015-12-12 02:31:11 +01:00
pps
ps3
ptp
pwm	pwm: Changes for v4.4-rc1	2015-11-11 09:16:10 -08:00
rapidio
ras
regulator	spi: Updates for v4.4	2015-11-05 13:15:12 -08:00
remoteproc	remoteproc: fix memory leak of remoteproc ida cache layers	2015-11-26 17:44:28 +02:00
reset
rpmsg
rtc	rtc: da9063: fix access ordering error during RTC interrupt at system power on	2015-12-20 13:39:29 +01:00
s390	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux	2015-11-18 08:59:29 -08:00
sbus
scsi	Merge branches '4.5/Or-cleanup' and '4.5/rdma-cq' into k.o/for-4.5	2015-12-22 17:03:15 -05:00
sfi
sh	drivers: sh: Get rid of CONFIG_ARCH_SHMOBILE_MULTI	2015-11-17 02:12:46 +09:00
sn
soc	Few Keystone fixes for 4.4-rcx	2015-11-25 23:48:12 +01:00
spi	Merge remote-tracking branches 'spi/fix/dspi' and 'spi/fix/spidev' into spi-linus	2015-12-16 13:28:32 +00:00
spmi	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00
ssb	ssb: add Kconfig entry for compiling SoC related code	2015-10-28 21:05:21 +02:00
staging	IB: remove the write-only usecnt field from struct ib_mr	2015-12-23 14:29:06 -05:00
target	target/stat: print full t10_wwn.model buffer	2015-11-28 21:23:13 -08:00
tc
thermal	imx: thermal: use CPU temperature grade info for thresholds	2015-11-23 16:38:40 -08:00
thunderbolt
tty	tty: Fix GPF in flush_to_ldisc()	2015-12-12 23:05:28 -08:00
uio
usb	USB: fix invalid memory access in hub_activate()	2015-12-18 09:30:34 -08:00
uwb	driver core update for 4.4-rc1	2015-11-04 21:50:37 -08:00
vfio	Revert: "vfio: Include No-IOMMU mode"	2015-12-04 08:38:42 -07:00
vhost	vhost: replace % with & on data path	2015-12-07 17:28:10 +02:00
video	OMAPDSS: fix timings for VENC to match what omapdrm expects	2015-12-09 12:57:13 +02:00
virt
virtio	virtio_ring: shadow available ring flags & index	2015-12-07 17:28:11 +02:00
vlynq
vme	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00
w1	power supply and reset changes for the v4.4 series	2015-11-05 12:28:15 -08:00
watchdog	watchdog: mtk_wdt: Use MODE_KEY when stopping the watchdog	2015-11-23 09:00:09 +01:00
xen	xen: bug fixes for 4.4-rc5	2015-12-18 12:24:52 -08:00
zorro
Kconfig	char/misc drivers for 4.4-rc1	2015-11-04 22:15:15 -08:00
Makefile	null_blk: register as a LightNVM device	2015-11-16 15:22:28 -07:00