Date: Tue, 12 Apr 2016 18:43:39 +0530 From: prateek sethi <prateekrootkey@gmail.com> To: freebsd-drivers@freebsd.org Subject: mps reinitialization triggered system panic Message-ID: <CABD8d0p0gyVdmJMdCUCrvXWSSYMYbRDLr9Y4pN-UTjKFT9ysXQ@mail.gmail.com>
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I am using LSI SAS2308 HBA card with freebsd 9.2. My system got panic during mps reinitialization process. I tried to debug the core and found that driver was failed to allocate iocfacts, triggered this panic. I also got "*Doorbell failed to activate*" message in the core file. Please help me to find the answers of some questions like:- 1. What can be the reasons for Doorbell activation failure? 2. How I can fix this issue? 3. If it is a H/w issue, how it can be fixed after reboot? 4. *Why a driver failure should panic a system?* I think panic is not a good option to get recover from some error. There should be some another way to handle this failure. I am a beginner for the drivers and if I am predicting or asking something wrong please correct me. Regards Prateek
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