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Message #125899
[Bug 1415178] Re: Kernel trace message when the ipr driver is rmmod from Ubuntu 14.10 guest (GTO - PCI Passthrough)
This bug was fixed in the package linux - 3.19.0-22.22
---------------
linux (3.19.0-22.22) vivid; urgency=low
[ Brad Figg ]
* Release Tracking Bug
- LP: #1465755
[ Tai Nguyen ]
* SAUCE: power: reset: Add syscon reboot device node for APM X-Gene
platform
- LP: #1463211
[ Upstream Kernel Changes ]
* Revert "dm crypt: fix deadlock when async crypto algorithm returns
-EBUSY"
- LP: #1465696
* Bluetooth: ath3k: Add a new ID 0cf3:e006 to ath3k list
- LP: #1459934
* cdc-acm: prevent infinite loop when parsing CDC headers.
- LP: #1460657
* (upstream) libata: Blacklist queued TRIM on all Samsung 800-series
- LP: #1338706, #1449005
* powerpc/powernv: Check image loaded or not before calling flash
- LP: #1461553
* ahci: avoton port-disable reset-quirk
- LP: #1458617
* Bluetooth: btusb: support public address configuration for ath3012
- LP: #1459937
* Bluetooth: btusb: Add setup callback for chip init on USB
- LP: #1459937
* Bluetooth: btusb: Add support for QCA ROME chipset family
- LP: #1459937
* Bluetooth: btusb: Fix incorrect type in qca_device_info
- LP: #1459937
* Bluetooth: btusb: Fix minor whitespace issue in QCA ROME device entries
- LP: #1459937
* Bluetooth: btusb: Add support for 0cf3:e007
- LP: #1459937
* storvsc: Set the SRB flags correctly when no data transfer is needed
- LP: #1439780
* vfs: read file_handle only once in handle_to_path
- LP: #1416503
- CVE-2015-1420
* ozwpan: Use unsigned ints to prevent heap overflow
- LP: #1463442
- CVE-2015-4001
* ozwpan: divide-by-zero leading to panic
- LP: #1463445
- CVE-2015-4003
* ozwpan: Use proper check to prevent heap overflow
- LP: #1463444
- CVE-2015-4002
* ozwpan: unchecked signed subtraction leads to DoS
- LP: #1463444
- CVE-2015-4002
* enclosure: fix WARN_ON removing an adapter in multi-path devices
- LP: #1415178
* ASoC: tfa9879: Fix return value check in tfa9879_i2c_probe()
- LP: #1465696
* ASoC: samsung: s3c24xx-i2s: Fix return value check in
s3c24xx_iis_dev_probe()
- LP: #1465696
* ASoC: dapm: Enable autodisable on SOC_DAPM_SINGLE_TLV_AUTODISABLE
- LP: #1465696
* ASoC: rt5677: add register patch for PLL
- LP: #1465696
* btrfs: unlock i_mutex after attempting to delete subvolume during send
- LP: #1465696
* ALSA: hda - Fix mute-LED fixed mode
- LP: #1465696
* ALSA: hda - Add mute-LED mode control to Thinkpad
- LP: #1465696
* arm64: dma-mapping: always clear allocated buffers
- LP: #1465696
* ALSA: emu10k1: Fix card shortname string buffer overflow
- LP: #1465696
* ALSA: emux: Fix mutex deadlock at unloading
- LP: #1465696
* drm/radeon: Use drm_calloc_ab for CS relocs
- LP: #1465696
* drm/radeon: adjust pll when audio is not enabled
- LP: #1465696
* drm/radeon: add SI DPM quirk for Sapphire R9 270 Dual-X 2G GDDR5
- LP: #1465696
* drm/radeon: fix lockup when BOs aren't part of the VM on release
- LP: #1465696
* drm/radeon: reset BOs address after clearing it.
- LP: #1465696
* drm/radeon: check new address before removing old one
- LP: #1465696
* SCSI: add 1024 max sectors black list flag
- LP: #1465696
* 3w-sas: fix command completion race
- LP: #1465696
* 3w-xxxx: fix command completion race
- LP: #1465696
* 3w-9xxx: fix command completion race
- LP: #1465696
* uas: Allow uas_use_uas_driver to return usb-storage flags
- LP: #1465696
* uas: Add US_FL_MAX_SECTORS_240 flag
- LP: #1465696
* uas: Set max_sectors_240 quirk for ASM1053 devices
- LP: #1465696
* usb: chipidea: otg: remove mutex unlock and lock while stop and start
role
- LP: #1465696
* serial: xilinx: Use platform_get_irq to get irq description structure
- LP: #1465696
* serial: of-serial: Remove device_type = "serial" registration
- LP: #1465696
* tty/serial: at91: maxburst was missing for dma transfers
- LP: #1465696
* ALSA: emux: Fix mutex deadlock in OSS emulation
- LP: #1465696
* ACPI / SBS: Enable battery manager when present
- LP: #1465696
* ALSA: emu10k1: Emu10k2 32 bit DMA mode
- LP: #1465696
* ASoC: rt5677: fixed wrong DMIC ref clock
- LP: #1465696
* rbd: end I/O the entire obj_request on error
- LP: #1465696
* ext4: fix data corruption caused by unwritten and delayed extents
- LP: #1465696
* ext4: move check under lock scope to close a race.
- LP: #1465696
* powerpc/pseries: Correct cpu affinity for dlpar added cpus
- LP: #1465696
* powerpc/powernv: Restore non-volatile CRs after nap
- LP: #1465696
* efivarfs: Ensure VariableName is NUL-terminated
- LP: #1465696
* x86/efi: Store upper bits of command line buffer address in
ext_cmd_line_ptr
- LP: #1465696
* blk-mq: fix race between timeout and CPU hotplug
- LP: #1465696
* blk-mq: fix CPU hotplug handling
- LP: #1465696
* writeback: use |1 instead of +1 to protect against div by zero
- LP: #1465696
* ARM: mvebu: armada-xp-openblocks-ax3-4: Disable internal RTC
- LP: #1465696
* ARM: dts: imx23-olinuxino: Fix polarity of LED GPIO
- LP: #1465696
* ARM: dts: imx23-olinuxino: Fix dr_mode of usb0
- LP: #1465696
* ARM: dts: imx6: phyFLEX: USB VBUS control is active-high
- LP: #1465696
* ARM: dts: imx25: Add #pwm-cells to pwm4
- LP: #1465696
* ARM: dts: imx28: Fix AUART4 TX-DMA interrupt name
- LP: #1465696
* marvell-ccic: fix Y'CbCr ordering
- LP: #1465696
* gpio: sysfs: fix memory leaks and device hotplug
- LP: #1465696
* ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook
- LP: #1465696
* ACPI / PNP: add two IDs to list for PNPACPI device enumeration
- LP: #1465696
* ARM: OMAP2+: Fix omap off idle power consumption creeping up
- LP: #1465696
* ARM: dts: OMAP3-N900: Add microphone bias voltages
- LP: #1465696
* drm/radeon: disable semaphores for UVD V1 (v2)
- LP: #1465696
* x86/spinlocks: Fix regression in spinlock contention detection
- LP: #1465696
* RDMA/CMA: Canonize IPv4 on IPV6 sockets properly
- LP: #1465696
* drm/i915: Assume dual channel LVDS if pixel clock necessitates it
- LP: #1465696
* drm/i915: Add missing MacBook Pro models with dual channel LVDS
- LP: #1465696
* efi: Fix error handling in add_sysfs_runtime_map_entry()
- LP: #1465696
* xen/events: Clear cpu_evtchn_mask before resuming
- LP: #1465696
* xen/xenbus: Update xenbus event channel on resume
- LP: #1465696
* xen/console: Update console event channel on resume
- LP: #1465696
* xen/events: Set irq_info->evtchn before binding the channel to CPU in
__startup_pirq()
- LP: #1465696
* mm/memory-failure: call shake_page() when error hits thp tail page
- LP: #1465696
* mm: soft-offline: fix num_poisoned_pages counting on concurrent events
- LP: #1465696
* nilfs2: fix sanity check of btree level in nilfs_btree_root_broken()
- LP: #1465696
* ocfs2: dlm: fix race between purge and get lock resource
- LP: #1465696
* drm/i915/dp: there is no audio on port A
- LP: #1465696
* drm/amdkfd: allow unregister process with queues
- LP: #1465696
* drm/radeon: fix userptr BO unpin bug v3
- LP: #1465696
* drm/radeon: make VCE handle check more strict
- LP: #1465696
* drm/radeon: make UVD handle checking more strict
- LP: #1465696
* drm/radeon: more strictly validate the UVD codec
- LP: #1465696
* path_openat(): fix double fput()
- LP: #1465696
* mnt: Fix fs_fully_visible to verify the root directory is visible
- LP: #1465696
* drm: Zero out invalid vblank timestamp in drm_update_vblank_count.
- LP: #1465696
* ARM: ux500: Move GPIO regulator for SD-card into board DTSs
- LP: #1465696
* ARM: ux500: Enable GPIO regulator for SD-card for HREF boards
- LP: #1465696
* ARM: ux500: Enable GPIO regulator for SD-card for snowball
- LP: #1465696
* xen-pciback: Add name prefix to global 'permissive' variable
- LP: #1465696
* mmc: core: add missing pm event in mmc_pm_notify to fix hib restore
- LP: #1465696
* ARM: dts: am57xx-beagle-x15: Fix IRQ type for mcp7941x
- LP: #1465696
* mmc: sh_mmcif: Fix timeout value for command request
- LP: #1465696
* pinctrl: Don't just pretend to protect pinctrl_maps, do it for real
- LP: #1465696
* arm64: add missing PAGE_ALIGN() to __dma_free()
- LP: #1465696
* Linux 3.19.8-ckt1
- LP: #1465696
-- Brad Figg <brad.figg@xxxxxxxxxxxxx> Tue, 16 Jun 2015 09:21:59 -0700
** Changed in: linux (Ubuntu Vivid)
Status: Fix Committed => Fix Released
--
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https://bugs.launchpad.net/bugs/1415178
Title:
Kernel trace message when the ipr driver is rmmod from Ubuntu 14.10
guest (GTO - PCI Passthrough)
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Vivid:
Fix Released
Bug description:
SRU Justification:
[Impact]
Removing the ipr driver causes kernel warnings.
[Fix]
commit 11e52a699afff576606ceb6cf697270459f1a4aa upstream
$ git describe --contains 11e52a699afff576606ceb6cf697270459f1a4aa
v4.0~8^2~2
[Test Case]
See Steps to Reproduce below.
--
pKVM version:
[root@yangtze-lp1 ~]# cat /etc/issue
IBM_PowerKVM release 2.1.1 build 10 alpha (pkvm2_1_1)
Kernel \r on a \m (\l)
Ubuntu version:
root@ubuntushinner:~# uname -a
Linux ubuntushinner 3.16.0-14-generic #20-Ubuntu SMP Sat Sep 6 23:45:12 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux
steps to reproduce:
1. rmmod the ipr driver and kernel traces are seen on the syslog.
root@ubuntushinner:~# lsmod
Module Size Used by
pseries_rng 2849 0
ses 9046 0
enclosure 11198 1 ses
rtc_generic 2249 0
ipr 140038 0
ohci_pci 6794 0
root@ubuntushinner:~# uname -a
Linux ubuntushinner 3.16.0-14-generic #20-Ubuntu SMP Sat Sep 6 23:45:12 UTC 2014 ppc64le ppc64le ppc64le GNU/Linux
root@ubuntushinner:~# rmmod ipr
root@ubuntushinner:~# lsscsi
[0:0:0:0] disk QEMU QEMU HARDDISK 2.0. /dev/sda
[0:0:0:1] cd/dvd QEMU QEMU CD-ROM 2.0. /dev/sr0
syslog:
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546878] kernfs: can not remove 'device', no directory
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546903] ------------[ cut here ]------------
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546906] WARNING: at /build/buildd/linux-3.16.0/fs/kernfs/dir.c:1220
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546908] Modules linked in: pseries_rng ses enclosure rtc_generic ipr(-) ohci_pci
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546922] CPU: 1 PID: 3537 Comm: rmmod Not tainted 3.16.0-14-generic #20-Ubuntu
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546926] task: c0000003ebad6830 ti: c0000003e5da8000 task.ti: c0000003e5da8000
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546928] NIP: c000000000350c34 LR: c000000000350c30 CTR: c000000000517a60
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546931] REGS: c0000003e5dab380 TRAP: 0700 Not tainted (3.16.0-14-generic)
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546932] MSR: 8000000100029033 <SF,EE,ME,IR,DR,RI,LE> CR: 28088844 XER: 20000000
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546942] CFAR: c0000000009fd270 SOFTE: 1
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546942] GPR00: c000000000350c30 c0000003e5dab600 c0000000013d49e0 000000000000002d
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546942] GPR04: c000000001845db0 c000000001856618 0000000000000175 0000000000000175
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546942] GPR08: c000000000e449e0 0000000000000000 0000000000000000 c000000000c41b80
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546942] GPR12: 0000000000008800 c00000000fb80900 0000000000000000 00000100311e01f0
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546942] GPR16: 0000000000000000 000000004c7133a0 000000004c713358 0000000000000000
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546942] GPR20: 000000004c713380 000000004c7133b8 0000000000000000 000000004c713398
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546942] GPR24: 0000000000000000 0000000000000001 00003fffe6f71750 c0000003e4e01d28
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546942] GPR28: 0000000000000000 d000000005fe18e0 c0000003e4e01d18 0000000000000000
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546980] NIP [c000000000350c34] kernfs_remove_by_name_ns+0xe4/0xf0
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546984] LR [c000000000350c30] kernfs_remove_by_name_ns+0xe0/0xf0
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546987] Call Trace:
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546990] [c0000003e5dab600] [c000000000350c30] kernfs_remove_by_name_ns+0xe0/0xf0 (unreliable)
Sep 9 02:57:57 ubuntushinner kernel: [ 576.546995] [c0000003e5dab680] [c0000000003542c0] sysfs_remove_link+0x40/0x90
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547001] [c0000003e5dab6c0] [d000000005fe0de0] enclosure_remove_links.part.2+0x80/0xb0 [enclosure]
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547005] [c0000003e5dab730] [d000000005fe0e54] enclosure_component_release+0x44/0x70 [enclosure]
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547012] [c0000003e5dab760] [c000000000639360] device_release+0x60/0xf0
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547018] [c0000003e5dab7e0] [c00000000050b73c] kobject_release+0xdc/0x250
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547022] [c0000003e5dab870] [c000000000639f3c] device_unregister+0x4c/0xb0
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547025] [c0000003e5dab8e0] [d000000005fe0810] enclosure_unregister+0xb0/0x100 [enclosure]
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547029] [c0000003e5dab920] [d0000000060a0178] ses_intf_remove+0xb8/0x160 [ses]
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547032] [c0000003e5dab950] [c000000000639d84] device_del+0x104/0x270
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547036] [c0000003e5dab990] [c000000000639f2c] device_unregister+0x3c/0xb0
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547041] [c0000003e5daba00] [c0000000006bb8b4] __scsi_remove_device+0x124/0x150
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547044] [c0000003e5daba30] [c0000000006b8834] scsi_forget_host+0xa4/0xb0
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547048] [c0000003e5daba60] [c0000000006a88e4] scsi_remove_host+0xa4/0x1b0
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547054] [c0000003e5dabaa0] [d000000003b74bd0] ipr_remove+0x80/0x100 [ipr]
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547058] [c0000003e5dabb20] [c000000000567bb0] pci_device_remove+0x70/0x110
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547061] [c0000003e5dabb60] [c00000000063ff9c] __device_release_driver+0xac/0x130
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547064] [c0000003e5dabb90] [c000000000640e08] driver_detach+0x148/0x190
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547067] [c0000003e5dabbe0] [c00000000063fa28] bus_remove_driver+0x98/0x150
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547070] [c0000003e5dabc50] [c000000000641aac] driver_unregister+0x4c/0x80
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547074] [c0000003e5dabcc0] [c00000000056613c] pci_unregister_driver+0x4c/0x120
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547078] [c0000003e5dabd10] [d000000003b7573c] ipr_exit+0x34/0x1f18 [ipr]
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547083] [c0000003e5dabd40] [c00000000015ddc8] SyS_delete_module+0x228/0x280
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547087] [c0000003e5dabe30] [c00000000000a17c] syscall_exit+0x0/0x7c
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547089] Instruction dump:
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547090] e8010010 eb81ffe0 eba1ffe8 ebc1fff0 7c0803a6 ebe1fff8 4e800020 3c62ff89
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547095] 7fa4eb78 38638f40 486ac5b9 60000000 <0fe00000> 3860fffe 4bffff94 3c4c0108
Sep 9 02:57:57 ubuntushinner kernel: [ 576.547101] ---[ end trace 4a44cd6dfffd2bb9 ]---
Guest xml:
[root@yangtze-lp1 ~]# virsh dumpxml GManu_Ubuntu_14_10_GTO
<domain type='kvm' id='11'>
<name>GManu_Ubuntu_14_10_GTO</name>
<uuid>22a274f5-e9bc-4189-b4bb-5cf7f848889e</uuid>
<memory unit='KiB'>17532928</memory>
<currentMemory unit='KiB'>17532672</currentMemory>
<vcpu placement='static'>16</vcpu>
<resource>
<partition>/machine</partition>
</resource>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
<boot dev='hd'/>
<boot dev='cdrom'/>
<boot dev='network'/>
<bootmenu enable='yes'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/qemu-kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2'/>
<source file='/var/lib/libvirt/images/manu/Ubunut_14_10_shinner.qcow2'/>
<backingStore/>
<target dev='sda' bus='scsi'/>
<alias name='scsi0-0-0-0'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<source file='/var/lib/libvirt/images/manu/utopic-server-ppc64el.iso'/>
<backingStore/>
<target dev='sdb' bus='scsi'/>
<readonly/>
<alias name='scsi0-0-0-1'/>
<address type='drive' controller='0' bus='0' target='0' unit='1'/>
</disk>
<controller type='usb' index='0'>
<alias name='usb0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</controller>
<controller type='pci' index='0' model='pci-root'>
<alias name='pci.0'/>
</controller>
<controller type='scsi' index='0'>
<alias name='scsi0'/>
<address type='spapr-vio' reg='0x2000'/>
</controller>
<controller type='scsi' index='1'>
<alias name='scsi1'/>
<address type='spapr-vio' reg='0x3000'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:d7:00:34'/>
<source bridge='virbr0'/>
<target dev='vnet1'/>
<model type='virtio'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
</interface>
<serial type='pty'>
<source path='/dev/pts/0'/>
<target port='0'/>
<alias name='serial0'/>
<address type='spapr-vio' reg='0x30000000'/>
</serial>
<console type='pty' tty='/dev/pts/0'>
<source path='/dev/pts/0'/>
<target type='serial' port='0'/>
<alias name='serial0'/>
<address type='spapr-vio' reg='0x30000000'/>
</console>
<hostdev mode='subsystem' type='pci' managed='yes'>
<driver name='vfio'/>
<source>
<address domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
</source>
<alias name='hostdev0'/>
</hostdev>
<memballoon model='virtio'>
<alias name='balloon0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</memballoon>
</devices>
<seclabel type='dynamic' model='selinux' relabel='yes'>
<label>system_u:system_r:svirt_t:s0:c16,c940</label>
<imagelabel>system_u:object_r:svirt_image_t:s0:c16,c940</imagelabel>
</seclabel>
</domain>
We saw the similar issue when we tried to "rmmod ipr" with daul
controllers configuration. Looks his guest only has one GTO adapter.
Also I checked the latest kernel source code for
drivers/misc/enclosure.c, it included the fix patch for dual
controller case.
static void enclosure_remove_links(struct enclosure_component *cdev)
{
char name[ENCLOSURE_NAME_SIZE];
/*
* In odd circumstances, like multipath devices, something else may
* already have removed the links, so check for this condition first.
*/
if (!cdev->dev->kobj.sd) -------------> fix patch for dual controllers
return;
enclosure_link_name(cdev, name);
sysfs_remove_link(&cdev->dev->kobj, name);
sysfs_remove_link(&cdev->cdev.kobj, "device");
}
Thanks,
Wendy
I re-created the issue on another guest.
Looks the following patch caused the issue. I need to re-build the
kernel and do more debug.
http://git.kernel.org/cgit/linux/kernel/git/jejb/scsi.git/commit/fs/sysfs/symlink.c?h
=for-next&id=879f40d193bb3c6c13930e88e3e9d5d7baf84d19
Thanks,
Wendy
Here is the upstream link for the patch:
http://marc.info/?l=linux-scsi&m=142145523316373&w=2
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