On Sun, 7 Jun 2020 at 16:50, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > On Sat, Jun 06, 2020 at 09:19:53PM +0530, Naresh Kamboju wrote: > > On Fri, 5 Jun 2020 at 19:46, Greg Kroah-Hartman > > <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > > > > > This is the start of the stable review cycle for the 5.7.1 release. > > > There are 14 patches in this series, all will be posted as a response > > > to this one. If anyone has any issues with these being applied, please > > > let me know. > > > > > > Responses should be made by Sun, 07 Jun 2020 13:54:56 +0000. > > > Anything received after that time might be too late. > > > > > > The whole patch series can be found in one patch at: > > > https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.7.1-rc1.gz > > > or in the git tree and branch at: > > > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.7.y > > > and the diffstat can be found below. > > > > > > thanks, > > > > > > greg k-h > > > > Results from Linaro’s test farm. > > > > While running kselftest memfd_test case the kernel panic noticed on i386 > > which started with kernel BUG and followed by kernel panic. > > > > steps to reproduce: (Not always reproducible) > > - cd /opt/kselftests/mainline/memfd/ > > - ./run_fuse_test.sh || true > > - ./run_hugetlbfs_test.sh || true > > > > [ 417.473220] run_hugetlbfs_t (10826): drop_caches: 3 > > [ 417.491120] audit: type=1701 audit(1591388532.357:87503): > > auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=10829 > > comm=\"memfd_test\" exe=\"/opt/kselftests/mainline/memfd/memfd_test\" > > sig=6 res=1 > > [ 417.511294] BUG: kernel NULL pointer dereference, address: 00000043 > > [ 417.517569] #PF: supervisor read access in kernel mode > > [ 417.522699] #PF: error_code(0x0000) - not-present page > > [ 417.527830] *pde = 00000000 > > [ 417.530707] Oops: 0000 [#2] SMP > > [ 417.533846] CPU: 3 PID: 10829 Comm: memfd_test Tainted: G D W > > 5.7.1-rc1 #1 > > [ 417.541845] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS > > 2.0b 07/27/2017 > > [ 417.549327] EIP: kmem_cache_alloc_trace+0x81/0x2b0 > > <> > > [ 931.776242] Kernel panic - not syncing: Attempted to kill init! > > exitcode=0x00000009 > > [ 931.783933] Kernel Offset: 0x1ce00000 from 0xc1000000 (relocation > > range: 0xc0000000-0xf77fdfff) > > [ 931.792627] ---[ end Kernel panic - not syncing: Attempted to kill > > init! exitcode=0x00000009 ]--- > > Did you see this on Linus's tree too? Yes. I have noticed 4 out of 10 kselftest full runs. > > Is it a regression from 5.7.0? It is a regression on Linus 's tree and the same problem was noticed on stable-rc 5.7 branch. - Naresh
