https://bugzilla.kernel.org/show_bug.cgi?id=206253 Bug ID: 206253 Summary: mpt3sas driver crash under heavy load Product: IO/Storage Version: 2.5 Kernel Version: 3.10.0-957.27.2.el7.x86_64 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: SCSI Assignee: linux-scsi@xxxxxxxxxxxxxxx Reporter: itoufiqu@xxxxxxx Regression: No Created attachment 286877 --> https://bugzilla.kernel.org/attachment.cgi?id=286877&action=edit console screenshot Hi guys, I am new to this site, so if this problem is a repeat, my apology in advance. I have a Dell R7425 server with dual AMD EPYC-7301 CPUs, 256GB of RAM, with dual SAS 3008 cards. OS is centOS 7.6. I have 60-bay JBOD connected to these 2 HBA cards, all bays are full with HGST SAS 10TB drives. We run BeeGFS (with ZFS at the backend) in this system. This is a brand new setup and we noticed that under heavy load after a while , the system completely freezes up. It then needs a hard reboot. I ran starce-ng for 2 days on the CPUs and RAM, the system was stable. I torture tested the boot drives as well for 2 days, nothing came out. Everything seems normal. the problem seems come in when we start stressing the drives in the JBOD, connected with the HBA card. I have the system configured with dual connected multipath ( roound-robin ) between both of the HBA cards and primary and secondary SAS expanders of the of JBOD. Since this is a Dell server, I went to Dell's support website, and found a newer mpt3sas driver and installed it. OS installed driver version was 16.100.01.00 , and updated version now is 27.00.01.00 . This morning, the system hung again, and I was able to capture something from the console. I have attached the screenshot. The error was, mpt3sas_cm0 fault_state(0x5854!) Below is the current modinfo output ( in brief ) from the current mpt3sas driver: filename: /lib/modules/3.10.0-957.27.2.el7.x86_64/kernel/drivers/scsi/mpt3sas/mpt3sas.ko.xz alias: mpt2sas version: 27.00.01.00 license: GPL description: LSI MPT Fusion SAS 3.0 & SAS 3.5 Device Driver author: Broadcom Inc. <MPT-FusionLinux.pdl@xxxxxxxxxxxx> retpoline: Y rhelversion: 7.6 srcversion: 26E62E1FFC69FC8709F8CD7 I have no idea what to do here. What can I do to fix this issue? Do I need a special configuration? A new driver? Our file servers are usually under moderate to high load. We have a 1.6PB system here ( BeeGFS + ZFS at the backend ), with CentOS 6.9. that system run pretty solid without much hiccup. that system also has a HBA 3008 card. Thanks. -- You are receiving this mail because: You are the assignee for the bug.
