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Date:	Sun, 26 Jun 2016 16:01:48 +0200
From:	Thorsten Leemhuis <regressions@...mhuis.info>
To:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Linux 4.7: Reported regressions as of Sunday, 2016-06-26

Hi! Here is my third regression report for Linux 4.7. It has 
24 entries; 9 of them are new; 4 regressions (not included here)
were fixed since the last report(¹). 

Please let me know if a regression is missing in the list; or if
there is something on the list which shouldn't be there.

HTH, CU, Thorsten

(¹) previous reports can be found at
http://thread.gmane.org/gmane.linux.kernel/2241805
http://thread.gmane.org/gmane.linux.kernel/2247804

----
Description:    ath10k no longer authenticates and freezes system
Report:         https://bugzilla.kernel.org/show_bug.cgi?id=119151
Latest status:  https://bugzilla.kernel.org/show_bug.cgi?id=119151#c12
Date rep/stat:  2016-05-27 / 2016-06-20
Notes:          fix heading towards mainline

Description:    Bad flicker on skylake HQD due to code in the 4.7 merge window
Report:         http://thread.gmane.org/gmane.linux.kernel/2230377
Latest status:  http://thread.gmane.org/gmane.linux.kernel/2230377/focus=158274
Date rep/stat:  2016-05-30 / 2016-06-23
Notes:          commit that introduced regression was found

Description:    we noticed reaim.jobs_per_min -49.1% regression
Report:         http://thread.gmane.org/gmane.linux.kernel/2231025/
Latest status:  http://thread.gmane.org/gmane.linux.kernel/2231025/focus=2233571
Date rep/stat:  2016-05-31 / 2016-06-13
Notes:          poked Al is this is going to fix it http://article.gmane.org/gmane.linux.kernel/2241911

Description:    NULL pointer dereference with BCM4350 wireless device
Report:         https://bugzilla.kernel.org/show_bug.cgi?id=119451
Latest status:  https://bugzilla.kernel.org/show_bug.cgi?id=119451#c3
Date rep/stat:  2016-06-01 / 2016-06-07
Notes:          reporter hasn't confirmed yet, but likely fixed in mainline by https://git.kernel.org/torvalds/c/31143e2933

Description:    795ae7a0de: pixz.throughput -9.1% regression
Report:         http://thread.gmane.org/gmane.linux.kernel/2233056/
Latest status:  http://thread.gmane.org/gmane.linux.kernel/2233056/focus=2251134
Date rep/stat:  2016-06-02 / 2016-06-22
Notes:          hannes can't still reproduce

Description:    RadeonSI get a huge performance dip with used with the nine state tracker
Report:         https://bugzilla.kernel.org/show_bug.cgi?id=119631
Latest status:  https://bugzilla.kernel.org/show_bug.cgi?id=119631#c14
Date rep/stat:  2016-06-04 / 2016-06-20
Notes:          patch to mostly fix regression under discussion

Description:    Regression in kbuild: fix if_change and friends to consider argument 
Report:         http://thread.gmane.org/gmane.linux.kbuild.devel/14981/
Latest status:  http://thread.gmane.org/gmane.linux.kbuild.devel/14981/focus=15000
Date rep/stat:  2016-06-07 / 2016-06-09
Notes:          poked Michal

Description:    BUG: using smp_processor_id() in preemptible [00000000] code] when using a USB Mass Storage device
Report:         http://thread.gmane.org/gmane.linux.usb.general/143504
Latest status:  http://thread.gmane.org/gmane.linux.usb.general/143504/focus=153154 https://lkml.org/lkml/2016/6/15/397
Date rep/stat:  2016-06-09 / 2016-06-15
Notes:          poked Joerg

Description:    Notebook Clevo N350DW i5-6500T freezes on shutdown (but reboots fine)
Report:         https://bugzilla.kernel.org/show_bug.cgi?id=119871
Latest status:  https://bugzilla.kernel.org/show_bug.cgi?id=119871#c9
Date rep/stat:  2016-06-09 / 2016-06-25
Notes:          poked Rafael via bugzilla; two (or three?) people see this now

Description:    BUG: unable to handle kernel NULL pointer dereference […] qla24xx_process_response_queue+0x49/0x4b0 [qla2xxx]
Report:         https://bugzilla.kernel.org/show_bug.cgi?id=120201
Latest status:  http://thread.gmane.org/gmane.linux.kernel/2247804/focus=2252004
Date rep/stat:  2016-06-14 / 2016-06-23
Notes:          wip

Description:    Performance drop 30-40% for SPECjbb2005 and SPECjvm2008 benchmarks
Report:         https://bugzilla.kernel.org/show_bug.cgi?id=120481
Latest status:  https://bugzilla.kernel.org/show_bug.cgi?id=120481#c15 http://thread.gmane.org/gmane.linux.kernel/2245977/focus=2253079
Date rep/stat:  2016-06-16 / 2016-06-24
Notes:          peterz is looing into it

Description:    performance drop on SFC interface around 30 %
Report:         https://bugzilla.kernel.org/show_bug.cgi?id=120461
Latest status:  https://bugzilla.kernel.org/show_bug.cgi?id=120461#c12
Date rep/stat:  2016-06-17 / 2016-06-21
Notes:          wip

Description:    System hang when plug/un-plug USB 3.1 key via thunderbolt port on Dell XPS 13
Report:         https://bugzilla.kernel.org/show_bug.cgi?id=120241
Latest status:  https://bugzilla.kernel.org/show_bug.cgi?id=120241#c7
Date rep/stat:  2016-06-14 / 2016-06-24
Notes:          wip

Description:    lk 4.7 regression: EDAC, amd64_edac: Drop pci_register_driver() use
Report:         http://thread.gmane.org/gmane.linux.kernel/2245115/
Latest status:  http://thread.gmane.org/gmane.linux.kernel/2246008/focus=2246009
Date rep/stat:  2016-06-15 / 2016-06-16
Notes:          poke Boris if the fix doesn't make it to mainline in hte next few days

Description:    regression in 8250 uart driver
Report:         http://thread.gmane.org/gmane.linux.kernel/2243130/focus=2243653
Latest status:  http://thread.gmane.org/gmane.linux.kernel/2243130/focus=2243653
Date rep/stat:  2016-06-14 / 2016-06-14
Notes:          wip, fix available

Description:    http://thread.gmane.org/gmane.linux.kernel/2231928
Report:         http://thread.gmane.org/gmane.linux.kernel/2231928
Latest status:  http://thread.gmane.org/gmane.linux.kernel/2231928/focus=2233380 http://thread.gmane.org/gmane.linux.kernel/2231928/focus=75622
Date rep/stat:  2016-06-01 / 2016-06-14
Notes:          asked for status-update

Description:    Crash in XFS
Report:         http://thread.gmane.org/gmane.comp.file-systems.xfs.general/75541/
Latest status:  http://thread.gmane.org/gmane.comp.file-systems.xfs.general/75541/focus=76042
Date rep/stat:  2016-06-08 / 2016-06-22
Notes:          waiting for reporter; issue related to the one below?

Description:    Rename file corruption due to VFS-Changes?
Report:         http://thread.gmane.org/gmane.linux.kernel/2245402/
Latest status:  http://thread.gmane.org/gmane.linux.kernel/2245402/focus=2250254
Date rep/stat:  2016-06-16 / 2016-06-22
Notes:          waiting for reporter; issue related to the one above?

Description:    4.7-rc1 oops at drm_connector_cleanup+0x5c/0x1d0
Report:         http://thread.gmane.org/gmane.comp.video.dri.devel/155784/
Latest status:  http://thread.gmane.org/gmane.comp.video.dri.devel/155784/focus=157094 https://bugs.freedesktop.org/show_bug.cgi?id=96532
Date rep/stat:  2016-06-02 / 2016-06-10
Notes:          bisected, possible revert cofirmed to fix issue, but no reaction from the relevant developers after three weeks :-/ CCed nouveau developers, maybe it will help

Description:    UBSAN splat in drivers/acpi/acpica/dsutils.c:641:16
Report:         https://bugzilla.kernel.org/show_bug.cgi?id=120351
Latest status:  https://bugzilla.kernel.org/show_bug.cgi?id=120411#c3
Date rep/stat:  2016-06-15 / 2016-06-22
Notes:          related: https://bugzilla.kernel.org/show_bug.cgi?id=120411 https://bugzilla.kernel.org/show_bug.cgi?id=120391 https://bugzilla.kernel.org/show_bug.cgi?id=120371 https://bugzilla.kernel.org/show_bug.cgi?id=120361 https://bugzilla.kernel.org/show_bug.cgi?id=120351

Description:    In an idle system, wakeups/s (reported by powertop)is increased a lot
Report:         http://thread.gmane.org/gmane.linux.power-management.general/77619/
Latest status:  http://thread.gmane.org/gmane.linux.power-management.general/77619/focus=78039
Date rep/stat:  2016-06-17 / 2016-06-25
Notes:          wip, fix discussed

Description:    vm-scalability regression in cgroup-aware workingset code
Report:         http://thread.gmane.org/gmane.linux.kernel.mm/153799/
Latest status:  n/a
Date rep/stat:  2016-06-21 /  
Notes:          wip

Description:    sound disappeared, ACPI/PCI/IRQ related
Report:         http://thread.gmane.org/gmane.linux.kernel/2247930/
Latest status:  http://thread.gmane.org/gmane.linux.kernel/2247930/focus=85102
Date rep/stat:  2016-06-20 / 2016-06-25
Notes:          wip

Description:    Set a valid period in pwm_apply_args() to ensure polarity setting won't be rejected
Report:         http://thread.gmane.org/gmane.linux.pwm/3833/
Latest status:  http://thread.gmane.org/gmane.linux.pwm/3833/focus=4149
Date rep/stat:  2016-05-27 / 2016-06-23
Notes:          fix heading mainline

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