Panic with ext4,nbd,qemu-img,block

2018-01-20 Thread Hongzhi, Song
Hello, I create a virtual disk-image using qemu-img. And then I use /dev/nbd to map the image. I mount the /dev/nbd to a local dir with ext4-format Finally, I have some trouble about ext4-filesystem and block device, with using demand of rsync or dd to write the image. Reproduce :     qemu

(v2. forward to qemu )-Panic with ext4,nbd,qemu-img,block

2018-01-21 Thread Hongzhi, Song
Hello, I create a virtual disk-image using qemu-img. And then I use /dev/nbd to map the image. I mount the /dev/nbd to a local dir with ext4-format Finally, I have some trouble about ext4-filesystem and block device, with using demand of rsync or dd to write the image. Reproduce :     qemu

Question about mmap syscall and POSIX standard on mips arch

2018-10-17 Thread Hongzhi, Song
Hi all, Ltp has a POSIX teatcase about mmap, 24-2.c. https://github.com/linux-test-project/ltp/blob/e816127e5d8efbff5ae53e9c2292fae22f36838b/testcases/open_posix_testsuite/conformance/interfaces/mmap/24-2.c#L94 -part of code-     pa = mmap(addr, len, PROT_READ | PROT_WRITE, MAP_FIXED |

Re: Bug?: unlink cause btrfs error but other fs don't

2019-09-04 Thread Hongzhi, Song
est after next merge windows when those patches are supposed to be merged for 5.4 > Thank for your reply, I will keep eyes on the branch. ps: this email is my simply testcase from ltp --Hongzhi On 9/4/19 4:02 PM, Hongzhi, Song wrote: Hi , *Kernel:*     After v5.2-rc1, qemux86-64     mak

Re: Bug?: unlink cause btrfs error but other fs don't

2019-09-04 Thread Hongzhi, Song
On 9/4/19 6:48 PM, Josef Bacik wrote: On Wed, Sep 04, 2019 at 04:02:24PM +0800, Hongzhi, Song wrote: Hi , *Kernel:*     After v5.2-rc1, qemux86-64     make -j40 ARCH=x86_64 CROSS_COMPILE=x86-64-gcc     use qemu to bootup kernel *Reproduce:*     There is a test case failed on btrfs

Re: Bug report: A commit about serial8250 cause the output disorderly at the phase of startup

2019-04-21 Thread Hongzhi, Song
Hi all, Anyone notice this issue? --Hongzhi On 4/19/19 10:24 AM, Hongzhi, Song wrote: 1. Issue description: Boot kernel( >= linux-rt-devel-v5.0.3 ) with qemu. Then qemu will print following disorderly messages. At the beginning, the messages are disorderly. But then it becomes norma

Re: Bug report: A commit about serial8250 cause the output disorderly at the phase of startup

2019-04-23 Thread Hongzhi, Song
On 4/23/19 2:48 PM, John Ogness wrote: On 2019-04-22, Hongzhi, Song wrote: Anyone notice this issue? Yes, I am aware of the issue. It is actually a feature, not a bug. ;-) Individual LOG_CONT messages, when classified as emergency messages, are printed immediately to the console. Yes