On Mon, Feb 6, 2023 at 2:20 PM Christoph Hellwig <hch@xxxxxx> wrote: > > On Mon, Feb 06, 2023 at 01:22:23PM +0800, Yi Zhang wrote: > > Hello > > CKI reported one new issue with the latest linux-block/for-next, pls > > help check it, thanks. > > > > linux-block.git@for-next > > commit: 99bd489eac97 > > > > [ 4407.784047] Running test [R:13334567 T:10 - Storage - block - > > What actual test is this? The test was doing fio on each numa node on the server. I'm trying to reproduce it, but it's not 100% reproduced. https://gitlab.com/redhat/centos-stream/tests/kernel/kernel-tests/-/blob/main/storage/block/fio_numa/runtest.sh > > storage fio numa - Kernel: 6.2.0-rc6] > > [ 4509.133240] BUG: kernel NULL pointer dereference, address: 0000000000000000 > > [ 4509.133654] #PF: supervisor read access in kernel mode > > [ 4509.133930] #PF: error_code(0x0000) - not-present page > > [ 4509.134206] PGD 0 P4D 0 > > [ 4509.134373] Oops: 0000 [#1] PREEMPT SMP PTI > > [ 4509.134579] CPU: 2 PID: 965 Comm: auditd Tainted: G I > > 6.2.0-rc6 #1 > > [ 4509.135384] Hardware name: HP ProLiant DL360p Gen8, BIOS P71 05/24/2019 > > [ 4509.135758] RIP: 0010:blkg_free+0xa/0xe0 > > Can you resolve this to a line using > > gdb vmlinux > l *(blkg_free+0xa/0xe0) > Here is the info: (gdb) l *(blkg_free+0xa/0xe0) 0xffffffff8171add0 is in blkg_free (block/blk-cgroup.c:118). 113 in block/blk-cgroup.c (gdb) l *(blkg_free+0xa) 0xffffffff8171adda is in blkg_free (block/blk-cgroup.c:128). 123 in block/blk-cgroup.c -- Best Regards, Yi Zhang
