https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c0
Summary: X windows is corrupt after logging in on an AMD A10-5800K APU Classification: openSUSE Product: openSUSE Factory Version: 12.3 Beta 1 Platform: x86-64 OS/Version: Other Status: NEW Severity: Critical Priority: P5 - None Component: Xen AssignedTo: jdouglas@suse.com ReportedBy: ajbiii@comcast.net QAContact: qa-bugs@suse.de Found By: --- Blocker: ---
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:7.0.1) Gecko/20100101 Firefox/7.0.1
Installed 12.3. The regular kernel and X windows works fine. Reboot to the xen kernel. The login screen is displayed correctly. After logging in, the display is corrupt. The mouse pointer is ok and I can see that the menu is active by putting the cursor in the lower left corner and clicking but the display is unusable.
Just an aside: The xen kernel wouldn't even boot on the APU with 12.1 or 12.2.
Reproducible: Always
Steps to Reproduce: 1. Install 12.3 on an AMD Trinity APU. 2. Boot regular kernel, log in and verify X is working. 3. Reboot with the xen kernel. 4. Log in and observe the corruption Actual Results: Screen is corrupt
Expected Results: Normal X windows operation
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c1
--- Comment #1 from Tony Becker ajbiii@comcast.net 2013-01-26 19:20:51 UTC --- Right before the screen corrupted I saw a kernel stack trace on the screen: WARNING: at /home/abuild/rpmbuild/BUILD/kernel-xen-3.7.1/linux-3.7/drivers/tty/tty_io.c:1420 tty_init_dev+0x19a/0x1d0() linux-mb1q kernel: [ 10.970989] Hardware name: To Be Filled By O.E.M. linux-mb1q kernel: [ 10.970991] tty_init_dev: xvc driver does not set tty->port. This will crash the kernel later. Fix the driver!
Full /var/log/messages to be attached. Contains multiple kernel stack traces.
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c2
--- Comment #2 from Tony Becker ajbiii@comcast.net 2013-01-26 19:22:13 UTC --- Created an attachment (id=522141) --> (http://bugzilla.novell.com/attachment.cgi?id=522141) /var/log/messages containing multiple stack traces
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c
Charles Arnold carnold@suse.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |carnold@suse.com AssignedTo|jdouglas@suse.com |jbeulich@suse.com QAContact|qa-bugs@suse.de |jdouglas@suse.com
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c3
Jan Beulich jbeulich@suse.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 - None |P2 - High Status|NEW |NEEDINFO Found By|--- |Community User InfoProvider| |ajbiii@comcast.net Severity|Critical |Major
--- Comment #3 from Jan Beulich jbeulich@suse.com 2013-01-29 07:41:24 UTC --- I think we're really seeing (at least) two issues here: A problem with the Xen console handling (which ought to be machine independent, yet I'm not seeing this myself) and a problem with the sound driver having got changed in a Xen incompatible way.
To verify (and to check whether there's a third, perhaps graphics driver related problem) please try using "xencons=off" on the kernel command line and at the same time blacklisting (or otherwise preventing from loading) the snd_hda_intel driver.
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c4
Jan Beulich jbeulich@suse.com changed:
What |Removed |Added ---------------------------------------------------------------------------- InfoProvider|ajbiii@comcast.net |tiwai@suse.com
--- Comment #4 from Jan Beulich jbeulich@suse.com 2013-01-29 16:31:25 UTC --- While I was able to deal with the console related warnings, the sound driver related crashes I can't deal with: Obviously, snd_had_intel passes (from mark_runtime_wc() afaict) a vmalloc()-ed pointer (ffffc90011d15000) to set_memory_wc(), which is wrong (but being tolerated by the native kernel for whatever reason), as the function expects to be able to use __pa() on the passed in address. I can't, however, spot how the driver manages to allocate ->dma_area through vmalloc(), so I also can't determine what the proper fix for this is. Takashi?
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c5
Takashi Iwai tiwai@suse.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW CC| |tiwai@suse.com InfoProvider|tiwai@suse.com |
--- Comment #5 from Takashi Iwai tiwai@suse.com 2013-01-29 17:20:50 UTC --- My bad. I forgot the handling of SG-buffer there. (The buffer pointer is composed via vmap.)
The fix patch is attached below. I'm going to merge it to the upstream, hopefully pulled into 3.8-rc6 (and backported to 3.7 to stable tree).
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c6
--- Comment #6 from Takashi Iwai tiwai@suse.com 2013-01-29 17:21:20 UTC --- Created an attachment (id=522480) --> (http://bugzilla.novell.com/attachment.cgi?id=522480) Fix patch for snd-hda-intel Oops
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c7
Jan Beulich jbeulich@suse.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |ajbiii@comcast.net
--- Comment #7 from Jan Beulich jbeulich@suse.com 2013-01-30 07:21:40 UTC --- Restoring needinfo according to #3.
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c8
Tony Becker ajbiii@comcast.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |CLOSED InfoProvider|ajbiii@comcast.net | Resolution| |FIXED
--- Comment #8 from Tony Becker ajbiii@comcast.net 2013-02-02 01:09:32 UTC --- I applied the patch to the source code and built and installed the module. Rebooted with the xen kernel and was able to log in. The oops has been resolved.
Y'all are awesome. Thanks.
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c9
Marcus Meissner meissner@suse.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |meissner@suse.com
--- Comment #9 from Marcus Meissner meissner@suse.com 2013-05-07 11:50:27 UTC --- We have just released a kernel update for SUSE Linux Enterprise 11 SP2 that mentions/fixes this bug. The released kernel version is 3.0.74-0.6.6.2.
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c10
Swamp Workflow Management swamp@suse.de changed:
What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard| |maint:released:sle11-sp2:52 | |260
--- Comment #10 from Swamp Workflow Management swamp@suse.de 2013-05-07 14:13:20 UTC --- Update released for: cluster-network-kmp-default, cluster-network-kmp-trace, gfs2-kmp-default, gfs2-kmp-trace, kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-devel, kernel-default-devel-debuginfo, kernel-default-extra, kernel-default-hmac, kernel-default-man, kernel-source, kernel-source-debuginfo, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-devel, kernel-trace-devel-debuginfo, kernel-trace-extra, kernel-trace-hmac, kernel-trace-man, ocfs2-kmp-default, ocfs2-kmp-trace Products: SLE-DEBUGINFO 11-SP2 (s390x) SLE-HAE 11-SP2 (s390x) SLE-SERVER 11-SP2 (s390x)
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c11
Swamp Workflow Management swamp@suse.de changed:
What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |260 |260 | |maint:released:sle11-sp2:52 | |257
--- Comment #11 from Swamp Workflow Management swamp@suse.de 2013-05-07 14:34:47 UTC --- Update released for: cluster-network-kmp-default, cluster-network-kmp-pae, cluster-network-kmp-trace, cluster-network-kmp-xen, gfs2-kmp-default, gfs2-kmp-pae, gfs2-kmp-trace, gfs2-kmp-xen, kernel-default, kernel-default-base, kernel-default-devel, kernel-default-extra, kernel-default-hmac, kernel-desktop-devel, kernel-ec2, kernel-ec2-base, kernel-ec2-devel, kernel-ec2-extra, kernel-ec2-hmac, kernel-pae, kernel-pae-base, kernel-pae-devel, kernel-pae-extra, kernel-pae-hmac, kernel-source, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-devel, kernel-trace-extra, kernel-trace-hmac, kernel-xen, kernel-xen-base, kernel-xen-devel, kernel-xen-extra, kernel-xen-hmac, ocfs2-kmp-default, ocfs2-kmp-pae, ocfs2-kmp-trace, ocfs2-kmp-xen Products: SLE-DEBUGINFO 11-SP2 (i386) SLE-DESKTOP 11-SP2 (i386) SLE-HAE 11-SP2 (i386) SLE-SERVER 11-SP2 (i386) SLES4VMWARE 11-SP2 (i386)
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c12
Swamp Workflow Management swamp@suse.de changed:
What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |260 |260 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |257 |259
--- Comment #12 from Swamp Workflow Management swamp@suse.de 2013-05-07 14:42:02 UTC --- Update released for: cluster-network-kmp-default, cluster-network-kmp-ppc64, cluster-network-kmp-trace, gfs2-kmp-default, gfs2-kmp-ppc64, gfs2-kmp-trace, kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-devel, kernel-default-extra, kernel-default-hmac, kernel-ppc64, kernel-ppc64-base, kernel-ppc64-debuginfo, kernel-ppc64-debugsource, kernel-ppc64-devel, kernel-ppc64-extra, kernel-ppc64-hmac, kernel-source, kernel-source-debuginfo, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-devel, kernel-trace-extra, kernel-trace-hmac, ocfs2-kmp-default, ocfs2-kmp-ppc64, ocfs2-kmp-trace Products: SLE-DEBUGINFO 11-SP2 (ppc64) SLE-HAE 11-SP2 (ppc64) SLE-SERVER 11-SP2 (ppc64)
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c13
Swamp Workflow Management swamp@suse.de changed:
What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |260 |260 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |259 |259 | |maint:released:sle11-sp2:52 | |258
--- Comment #13 from Swamp Workflow Management swamp@suse.de 2013-05-07 15:25:30 UTC --- Update released for: cluster-network-kmp-default, cluster-network-kmp-trace, gfs2-kmp-default, gfs2-kmp-trace, kernel-default, kernel-default-base, kernel-default-debuginfo, kernel-default-debugsource, kernel-default-devel, kernel-default-devel-debuginfo, kernel-default-extra, kernel-default-hmac, kernel-source, kernel-source-debuginfo, kernel-source-vanilla, kernel-syms, kernel-trace, kernel-trace-base, kernel-trace-debuginfo, kernel-trace-debugsource, kernel-trace-devel, kernel-trace-devel-debuginfo, kernel-trace-extra, kernel-trace-hmac, ocfs2-kmp-default, ocfs2-kmp-trace Products: SLE-DEBUGINFO 11-SP2 (ia64) SLE-HAE 11-SP2 (ia64) SLE-SERVER 11-SP2 (ia64)
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c14
Swamp Workflow Management swamp@suse.de changed:
What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |260 |260 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |259 |259 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |258 |258 | |maint:released:sle11-sp2:52 | |266
--- Comment #14 from Swamp Workflow Management swamp@suse.de 2013-05-07 19:07:49 UTC --- Update released for: ext4-writeable-kmp-default, ext4-writeable-kmp-trace, ext4-writeable-kmp-xen, kernel-default-extra, kernel-xen-extra Products: SLE-SERVER 11-EXTRA (x86_64)
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c15
Swamp Workflow Management swamp@suse.de changed:
What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |260 |260 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |259 |259 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |258 |258 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |266 |266 | |maint:released:sle11-sp2:52 | |262
--- Comment #15 from Swamp Workflow Management swamp@suse.de 2013-05-07 20:08:30 UTC --- Update released for: ext4-writeable-kmp-default, ext4-writeable-kmp-pae, ext4-writeable-kmp-trace, ext4-writeable-kmp-xen, kernel-default-extra, kernel-pae-extra, kernel-xen-extra Products: SLE-SERVER 11-EXTRA (i386)
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c16
Swamp Workflow Management swamp@suse.de changed:
What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |260 |260 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |259 |259 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |258 |258 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |266 |266 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |262 |262 | |maint:released:sle11-sp2:52 | |265
--- Comment #16 from Swamp Workflow Management swamp@suse.de 2013-05-07 21:09:42 UTC --- Update released for: ext4-writeable-kmp-default, ext4-writeable-kmp-trace, kernel-default-extra Products: SLE-SERVER 11-EXTRA (s390x)
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c17
Swamp Workflow Management swamp@suse.de changed:
What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |260 |260 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |259 |259 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |258 |258 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |266 |266 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |262 |262 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |265 |265 | |maint:released:sle11-sp2:52 | |264
--- Comment #17 from Swamp Workflow Management swamp@suse.de 2013-05-07 22:10:18 UTC --- Update released for: ext4-writeable-kmp-default, ext4-writeable-kmp-ppc64, ext4-writeable-kmp-trace, kernel-default-extra, kernel-ppc64-extra Products: SLE-SERVER 11-EXTRA (ppc64)
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c18
Swamp Workflow Management swamp@suse.de changed:
What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |260 |260 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |259 |259 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |258 |258 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |266 |266 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |262 |262 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |265 |265 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |264 |264 | |maint:released:sle11-sp2:52 | |263
--- Comment #18 from Swamp Workflow Management swamp@suse.de 2013-05-07 23:11:32 UTC --- Update released for: ext4-writeable-kmp-default, ext4-writeable-kmp-trace, kernel-default-extra Products: SLE-SERVER 11-EXTRA (ia64)
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c19
Swamp Workflow Management swamp@suse.de changed:
What |Removed |Added ---------------------------------------------------------------------------- Status Whiteboard|maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |260 |260 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |259 |259 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |258 |258 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |266 |266 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |262 |262 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |265 |265 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |264 |264 |maint:released:sle11-sp2:52 |maint:released:sle11-sp2:52 |263 |263 Status Whiteboard| |maint:released:sle11-sp2:52 | |347
--- Comment #19 from Swamp Workflow Management swamp@suse.de 2013-05-14 12:08:36 UTC --- Update released for: cluster-network-kmp-rt, cluster-network-kmp-rt_trace, drbd-kmp-rt, drbd-kmp-rt_trace, iscsitarget-kmp-rt, iscsitarget-kmp-rt_trace, kernel-rt, kernel-rt-base, kernel-rt-debuginfo, kernel-rt-debugsource, kernel-rt-devel, kernel-rt-devel-debuginfo, kernel-rt-extra, kernel-rt-hmac, kernel-rt_trace, kernel-rt_trace-base, kernel-rt_trace-debuginfo, kernel-rt_trace-debugsource, kernel-rt_trace-devel, kernel-rt_trace-devel-debuginfo, kernel-rt_trace-extra, kernel-rt_trace-hmac, kernel-source-rt, kernel-syms-rt, lttng-modules-kmp-rt, lttng-modules-kmp-rt_trace, ocfs2-kmp-rt, ocfs2-kmp-rt_trace, ofed-kmp-rt, ofed-kmp-rt_trace Products: SLE-RT 11-SP2 (x86_64)
https://bugzilla.novell.com/show_bug.cgi?id=800701
https://bugzilla.novell.com/show_bug.cgi?id=800701#c20
--- Comment #20 from Swamp Workflow Management swamp@suse.de 2013-06-10 09:36:50 UTC --- openSUSE-SU-2013:0925-1: An update that solves 21 vulnerabilities and has 87 fixes is now available.
Category: security (important) Bug References: 578046,651219,714604,722398,730117,736149,738210,744692,754583,754898,758243,761849,762424,763494,767612,768052,773577,776787,777616,777746,779577,780977,786150,786814,786900,787821,788826,789235,789311,789359,790867,792674,792793,793139,793671,794513,794529,794805,795269,795928,795957,795961,796412,796418,796823,797042,797175,798921,799197,799209,799270,799275,799578,799926,800280,800701,801038,801178,801713,801717,801720,801782,802153,802353,802445,802712,803056,803067,803394,803674,803712,804154,804220,804609,805823,806138,806395,806404,806431,806466,806469,806492,806631,806825,806847,806908,806976,806980,807431,807517,807560,807853,808166,808307,808829,808966,808991,809155,809166,809375,809493,809748,812281,812315,813963,816443,819789,89359 CVE References: CVE-2010-3873,CVE-2011-4131,CVE-2011-4604,CVE-2011-4622,CVE-2012-1601,CVE-2012-2119,CVE-2012-2137,CVE-2012-4461,CVE-2012-5517,CVE-2013-0160,CVE-2013-0216,CVE-2013-0231,CVE-2013-0871,CVE-2013-0913,CVE-2013-1767,CVE-2013-1774,CVE-2013-1796,CVE-2013-1797,CVE-2013-1798,CVE-2013-1848,CVE-2013-2094 Sources used: openSUSE 11.4 (src): iscsitarget-1.4.19-18.2, kernel-docs-3.0.74-34.2, kernel-source-3.0.74-34.1, kernel-syms-3.0.74-34.1, ndiswrapper-1.57rc1-20.1, omnibook-20100406-13.1, open-vm-tools-2012.8.8.1-41.1, pcfclock-0.44-250.1, preload-1.2-6.29.1, systemtap-1.4-1.11.1, virtualbox-4.0.12-0.58.1, xen-4.0.3_05-57.1, xtables-addons-1.37-0.22.1
http://bugzilla.novell.com/show_bug.cgi?id=800701 http://bugzilla.novell.com/show_bug.cgi?id=800701#c21
Hans Hu hanshu@zhaoxin.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|VERIFIED |REOPENED CC| |hanshu@zhaoxin.com Resolution|FIXED |--- Flags| |needinfo?
--- Comment #21 from Hans Hu hanshu@zhaoxin.com --- For snd-hda-intel, current patch replaced set_memory_wc with set_pages_array_wc. Function set_pages_array_wc marked the PTE of the original buffer address; Function set_memory_wc marked the PTE both original and after vmaped buffer address. Howerver, cache or not in transmission process is based on the PTE of the later, and the set_pages_array_wc did’t mark it, so a cache inconsistency issue occurs.
To prove, please use command "aplay -D plughw:0,0 44100_S16_LE_2c.wav" with HDAC in non-snoop mode and you can hear it.
For now I can’t reappearance the Oops described before, so I don't how to resolve them both, it needs developer's help.
http://bugzilla.novell.com/show_bug.cgi?id=800701 http://bugzilla.novell.com/show_bug.cgi?id=800701#c24
--- Comment #24 from Hans Hu hanshu@zhaoxin.com --- ohoh, related to this bug not because the product(AMD ...), is the patch "SHA1 ID: 9ddf1aeb2134e72275c97a2c6ff2e3eb04f2f27a", see comment 4 ~ 6
I find the new bug on Intel CPU, after dump the pagetable of buffer address, proved the root case is the different of set_memory_wc and set_pages_array_wc as describted before.