lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 23 Sep 2020 14:29:13 +0000 From: Adrian Huang12 <ahuang12@...ovo.com> To: Baoquan He <bhe@...hat.com>, "joro@...tes.org" <joro@...tes.org> CC: "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "jsnitsel@...hat.com" <jsnitsel@...hat.com> Subject: RE: [External] Re: [PATCH] Revert "iommu/amd: Treat per-device exclusion ranges as r/w unity-mapped regions" Hi Baoquan, > -----Original Message----- > From: Baoquan He <bhe@...hat.com> > Sent: Wednesday, September 23, 2020 10:33 AM > To: joro@...tes.org; Adrian Huang12 <ahuang12@...ovo.com> > Cc: iommu@...ts.linux-foundation.org; linux-kernel@...r.kernel.org; > jsnitsel@...hat.com > Subject: [External] Re: [PATCH] Revert "iommu/amd: Treat per-device exclusion > ranges as r/w unity-mapped regions" > > Forgot CC-ing Jerry, add him. > > On 09/23/20 at 10:26am, Baoquan He wrote: > > A regression failure of kdump kernel boot was reported on a HPE system. > > Bisect points at commit 387caf0b759ac43 ("iommu/amd: Treat per-device > > exclusion ranges as r/w unity-mapped regions") as criminal. Reverting > > it fix the failure. > > > > With the commit, kdump kernel will always print below error message, > > then naturally AMD iommu can't function normally during kdump kernel > bootup. > > > > ~~~~~~~~~ > > AMD-Vi: [Firmware Bug]: IVRS invalid checksum > > > > Why commit 387caf0b759ac43 causing it haven't been made clear. > > Hi Joerg, Adrian > > We only have one machine which can reproduce the issue, it's a gen10-01 of > HPE. If any log or info are needed, please let me know, I can attach here. Could you please provide the following info? 1. The booting log for both system kernel and kdump kernel by appending the kernel parameter 'amd_iommu_dump' 2. ACPI table (# acpidump > acpi-table) -> Send out the file 'acpi-table'. -- Adrian
Powered by blists - more mailing lists