It panic when reshaping from raid0 to other raid levels because of NULL pointer dereference. This problem is introduce by patch commit 0c031fd37f69 ("md: Move alloc/free acct bioset in to personality") Patch2 fixes a doulbe free memory problem introduced by the above patch. Xiao Ni (2): md: Don't set mddev private to NULL in raid0 pers->free md: Double free io_acct_set bioset drivers/md/md.c | 4 ---- drivers/md/raid0.c | 1 - 2 files changed, 5 deletions(-) -- 2.32.0 (Apple Git-132)