On 08/27/12 18:37, Dongsu Park wrote: > while testing ib_srp based on your srp-ha, > we sometimes hit kernel crashes with the call trace below. > > How to reproduce: > > 0. Kernel 3.2.15 with SCST v4193 on the target, > Kernel 3.2.8 with ib_srp-ha on the initiator. > 1. Configure 500+ vdisks on target, and get initiator connected. > 2. Exchange data intensively, which works well. > 3. (On initiator) delete SRP remote port occasionally, e.g. > # echo "1" > /sys/class/srp_remote_ports/port-6\:1/delete > And configure again the SRP target. > 4. (On target) disable Infiniband interface, and enable it again. > 5. Repeat 3 and 4. > > Then the initiator's kernel suddenly crashes. (but not always) > > Do you have any idea why?
Hello Dongsu, That's unfortunate. I've just finished running the above test 1000 times on my test setup. The test ran perfectly - login succeeded every time, the test finished in the expected time, no kernel crash did occur and no memory was leaked. I've been running my test with kernel 3.6-rc3 instead of kernel 3.2.8 though. Can you repeat your test with kernel 3.6-rc3 on the initiator system instead of kernel 3.2.8 ? The 3.6-rc3 kernel contains multiple patches that improve robustness with regard to SCSI device removal. Thanks, Bart. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
