On Thu, 8 Jul 2021 at 00:19, NeilBrown <neilb@xxxxxxx> wrote: > sorry - my bad.. > > I think I've found it. Rather than sending the whole patch, here is the > incremental fix. But not clearing this pointer, I risk the value in it > being freed twice. That might lead to what you saw. > > Thanks, > NeilBrown > > > > diff --git a/fs/nfs/fs_context.c b/fs/nfs/fs_context.c > index 7c644a31d304..9e34af223ce6 100644 > --- a/fs/nfs/fs_context.c > +++ b/fs/nfs/fs_context.c > @@ -1451,6 +1451,7 @@ static int nfs_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc) > ctx->nfs_server.export_path = NULL; > ctx->nfs_server.hostname = NULL; > ctx->fscache_uniq = NULL; > + ctx->namespace = NULL; > ctx->clone_data.fattr = NULL; > fc->fs_private = ctx; > return 0; > Yep, I think that has done the trick. I haven't crashed it with the same workload yet.... I can do some more thorough testing now. Thanks! Daire
