Hi! Here is my fifth regression report for Linux 4.7. It lists 10 regressions I'm currently aware of; 2 of them are new; 1 of those seems to be a a side effect of a fix for another regression.
The report also mentions 3 regression that I removed from the list, as it looks like those issues are no regressions. Find also details on 4 regressions that were fixed since the last report(¹) As usual: Please let me know about any regression missing on the list or if it contains something 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 http://thread.gmane.org/gmane.linux.kernel/2253623 http://thread.gmane.org/gmane.linux.kernel/2258287 == Current regressions == Desc: Bad flicker on skylake HQD due to code in the 4.7 merge window Repo: 2016-05-30 http://thread.gmane.org/gmane.linux.kernel/2230377 Stat: 2016-07-08 http://thread.gmane.org/gmane.linux.kernel/2230377/focus=94140 Note: vswing issue, maybe primary a Firmware problem; a few patches improved situation, but did not fix the problem Desc: 795ae7a0de: pixz.throughput -9.1% regression Repo: 2016-06-02 http://thread.gmane.org/gmane.linux.kernel/2233056/ Stat: 2016-06-22 http://thread.gmane.org/gmane.linux.kernel/2233056/focus=2251134 Note: hannes still can't reproduce; stalled until reporter posts results from more tests Desc: System hang when plug/un-plug USB 3.1 key via thunderbolt port on Dell XPS 13 Repo: 2016-06-14 https://bugzilla.kernel.org/show_bug.cgi?id=120241 Stat: 2016-07-08 https://bugzilla.kernel.org/show_bug.cgi?id=120241#c7 Note: there was wip, but root cause hard to track down; responsible developer now afk till early August Desc: regression in 8250 uart driver Repo: 2016-06-14 http://thread.gmane.org/gmane.linux.kernel/2243130/focus=2243653 Stat: 2016-07-02 http://thread.gmane.org/gmane.linux.kernel/2243130/focus=2258232 Note: andy has it still on his todo list, but something else has a higher priority Desc: Multi-thread udp 4.7 regression, bisected to 71d8c47fc653; performance decreased or complete failure with a test Repo: 2016-06-27 http://thread.gmane.org/gmane.linux.network/418861/focus=418908 Stat: 2016-07-05 http://thread.gmane.org/gmane.linux.network/418861/focus=63936 Note: waiting for feedback from reporter Desc: kmemcheck: Caught 64-bit read from uninitialized memory; iptables/nf_register_net_hooks Repo: 2016-06-19 https://bugzilla.kernel.org/show_bug.cgi?id=120651 Stat: 2016-07-02 Note: afaics stalled, after I told reporter a week ago how to contact the relevant developers Desc: UBSAN splat in drivers/acpi/acpica/dsutils.c:641:16 Repo: 2016-06-15 https://bugzilla.kernel.org/show_bug.cgi?id=120351 Stat: 2016-06-22 https://bugzilla.kernel.org/show_bug.cgi?id=120411#c3 Note: wonder if this is important enough to investigate further; related, similar bugs: 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 Not sure which of them are regressions Desc: Kernel does not boot with 7ed18e2d1b6782989eb399ef79a8cc1a1b583b3c ( acpi-4.7-rc7 aka All of these fix recent regressions in ACPICA, in the ACPI PCI IRQ management code and in the ACPI AML debugger.) Repo: 2016-07-08 https://bugzilla.kernel.org/show_bug.cgi?id=121701 Stat: 2016-07-10 http://thread.gmane.org/gmane.linux.kernel.pci/53279/focus=85652 Note: pointed Rafael to bugzilla on LKML Desc: ACPI EC problems/ ACPI / EC: Fix an order issue in ec_remove_handlers() Repo: 2016-07-06 http://thread.gmane.org/gmane.linux.kernel/2260279/ Stat: 2016-07-08 http://thread.gmane.org/gmane.linux.kernel/2260279/focus=85583 Note: patch under discussion == Going to me removed from the list == Desc: RadeonSI get a huge performance dip with used with the nine state tracker Repo: 2016-06-04 https://bugzilla.kernel.org/show_bug.cgi?id=119631 Stat: 2016-07-04 https://bugzilla.kernel.org/show_bug.cgi?id=119631#c14 Note: not a regression according to one of the AMD graphic driver developers; otoh it looks like one to me; yes, the real bug is in the gallium nine, wine side, but afaics it only showed up after a kernel change introduced a new feature Desc: performance drop on SFC interface around 30 % Repo: 2016-06-17 https://bugzilla.kernel.org/show_bug.cgi?id=120461 Stat: 2016-07-06 https://bugzilla.kernel.org/show_bug.cgi?id=120461#c20 Note: reporter and developer agree: not a regression in 4.7 Desc: Rename file corruption due to VFS-Changes? Repo: 2016-06-16 http://thread.gmane.org/gmane.linux.kernel/2245402/ Stat: 2016-06-22 http://thread.gmane.org/gmane.linux.kernel/2245402/focus=2250254 Note: issue likely fixed in mainline by 9f541801 + e7d6ef979; see also: http://thread.gmane.org/gmane.linux.kernel/2231928/focus=76124 == Fixed since last report == Desc: BUG: unable to handle kernel NULL pointer dereference […] qla24xx_process_response_queue+0x49/0x4b0 [qla2xxx] Repo: 2016-06-14 https://bugzilla.kernel.org/show_bug.cgi?id=120201 Stat: 2016-07-08 https://git.kernel.org/torvalds/c/262e2bfd7d1e1f1ee48b870e5dfabb87c06b975e Note: Fixed Desc: Performance drop 30-40% for SPECjbb2005 and SPECjvm2008 benchmarks Repo: 2016-06-16 https://bugzilla.kernel.org/show_bug.cgi?id=120481 Stat: 2016-07-08 https://git.kernel.org/torvalds/c/7dd4912594daf769a46744848b05bd5bc6d62469 https://git.kernel.org/torvalds/c/ea1dc6fc6242f991656e35e2ed3d90ec1cd13418 Note: Fixed Desc: lk 4.7 regression: EDAC, amd64_edac: Drop pci_register_driver() use Repo: 2016-06-15 http://thread.gmane.org/gmane.linux.kernel/2245115/ Stat: 2016-07-08 https://git.kernel.org/torvalds/c/1ead852dd88779eda12cb09cc894a03d9abfe1ec Note: Fixed Desc: sound disappeared, ACPI/PCI/IRQ related Repo: 2016-06-20 http://thread.gmane.org/gmane.linux.kernel/2247930/ http://thread.gmane.org/gmane.linux.acpi.devel/85281/focus=20097 Stat: 2016-07-07 https://git.kernel.org/linus/7ed18e2d1b6782989eb399ef79a8cc1a1b583b3c Note: fixed _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
