could you please give me some tips to diagnose? I could do tests on qemu 8.0, but product environment could not update. I test on different kernel version 5.10.0-X, one is better and results show problem is more about host kernel rather than qemu.
test cases are different combination of i440fx/q35 and virtio/scsi and kernel. thanks ---- Replied Message ---- | From | Michael Tokarev<m...@tls.msk.ru> | | Date | 08/10/2023 17:08 | | To | longguang.yue<kvml...@163.com> , qemu-devel<qemu-devel@nongnu.org> , linux-kernel<linux-ker...@vger.kernel.org> | | Subject | Re: LTP test related to virtio releasing and reassigning resource leads to guest hung | 10.08.2023 11:57, longguang.yue wrote: Hi, all: A ltp test leads to guest hung(io hung), the test releases virtio device resource and then reassign. I find device’s mem prefetchable resource 64-bit is changed. ltp test: https://github.com/linux-test-project/ltp/blob/522d7fba4afc84e07b252aa4cd91b241e81d6613/testcases/kernel/device-drivers/pci/tpci_kernel/ltp_tpci.c#L428 Do you know what cause the problem? Thanks very much. -------------------------- ENV: kernel 5.10.0, qemu 6.2 Current qemu is 8.1 (well, almost, to be released this month; previous release is 8.0 anyway). This might be interesting to test in a current version before going any further. Thanks, /mjt
