https://bugzilla.kernel.org/show_bug.cgi?id=207359
Bug ID: 207359 Summary: MegaRAID SAS 9361 controller hang/reset Product: Platform Specific/Hardware Version: 2.5 Kernel Version: >=v5.4 Hardware: PPC-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: PPC-64 Assignee: platform_ppc...@kernel-bugs.osdl.org Reporter: c...@neo-zeon.de Regression: No Created attachment 288623 --> https://bugzilla.kernel.org/attachment.cgi?id=288623&action=edit dmesg output for controller hang On a Talos II 2x 36 core (144 thread) POWER9 box, MegaRAID SAS 9361-16i PCIE controller can be made to pretty consistently hang with "heavy IO" on kernel versions greater than 5.3.18. I am unable to reproduce this on a 16/32 core/thread amd64 box with a MegaRAID SAS 9361-16i PCIE with the exact same firmware revision. The box also has a Microsemi SAS HBA which seems unaffected by this. System details: Talos II motherboard 2x 36 core (144 thread) POWER9 processors 512GB memory 4k page size MegaRAID SAS 9361-16i PCIE controller (4 disk RAID10 volume, megaraid_sas driver) Microsemi HBA w/4x SSD's The relevant dmesg messages are attached. -- You are receiving this mail because: You are watching the assignee of the bug.