https://bugzilla.kernel.org/show_bug.cgi?id=60644 Bug ID: 60644 Summary: MPT2SAS drops all HDDs when under high I/O Product: SCSI Drivers Version: 2.5 Kernel Version: 3.11 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: blocking Priority: P1 Component: Other Assignee: scsi_drivers-other@xxxxxxxxxxxxxxxxxxxx Reporter: liveaxle@xxxxxxxx Regression: No I have this issue that refused to be solved no matter what I do . My ASRock comes with onboard SAS controller (LSI 2308) , since I recieved it always does this one thing : Drops all HDDs connected to it . It happens only under heavy IO operations after a few minutes . I can recreate it easily by running either dd , md5deep or even btrfs scrub . Kernel locks , can't even shut it down from console and a quick ls /dev/disk/by-id shows that all the HDDs connected to the SAS controller have disappeared . It happens with the stable kernel (3.9 and 3.10.3) and the mainline (3.11-rc2) as of this day . It's not a hardware issue , because I installed a Windows Server 2012 on the same machine with a few HDDs I have laying around and beat the controller to the ground and it never hanged . So I know it's a Linux-specific issue . Dmesg logs before and after the issue are attached . Thank you . -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
