On Tue, Feb 22, 2022 at 07:58:33AM +0000, David Woodhouse wrote: > On Tue, 2022-02-22 at 01:31 -0500, Michael S. Tsirkin wrote: > > On Mon, Feb 21, 2022 at 05:18:48PM +0000, David Woodhouse wrote: > > > > > > [dwoodhou@i7 virtio]$ sudo ~/virtio_test > > > Detected virtual address range 0x1000-0x7ffffffff000 > > > spurious wakeups: 0x0 started=0x100000 completed=0x100000 > > > > > > Although in some circumstances I also see a different build failure: > > > > > > cc -g -O2 -Werror -Wno-maybe-uninitialized -Wall -I. -I../include/ -I ../../usr/include/ -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE -include ../../include/linux/kconfig.h -c -o vringh_test.o vringh_test.c Trying to test this myself ... $ cd tools/virtio/ $ make ... cc -lpthread virtio_test.o virtio_ring.o -o virtio_test /usr/bin/ld: virtio_ring.o: in function `spin_lock': /home/willy/kernel/folio/tools/virtio/./linux/spinlock.h:16: undefined reference to `pthread_spin_lock' So this is not the only problem here? > > > In file included from ./linux/uio.h:3, > > > from ./linux/../../../include/linux/vringh.h:15, > > > from ./linux/vringh.h:1, > > > from vringh_test.c:9: > > > ./linux/../../../include/linux/uio.h:10:10: fatal error: linux/mm_types.h: No such file or directory > > > 10 | #include <linux/mm_types.h> > > > | ^~~~~~~~~~~~~~~~~~ > > > compilation terminated. > > > make: *** [<builtin>: vringh_test.o] Error 1 > > > > Which tree has this build failure? In mine linux/uio.h does not > > include linux/mm_types.h. > > Strictly it's > https://git.infradead.org/users/dwmw2/linux.git/shortlog/refs/heads/xen-evtchn-kernel > but I'm sure my part isn't relevant; it's just v5.17-rc5. > > $ git blame include/linux/uio.h | grep mm_types.h > d9c19d32d86fa (Matthew Wilcox (Oracle) 2021-10-18 10:39:06 -0400 10) #include <linux/mm_types.h> > $ git describe --tags d9c19d32d86fa > v5.16-rc4-37-gd9c19d32d86f grr. Originally, I had this doing a typebusting cast, but hch objected, so I had to include mm_types.h. This should fix it ... $ git diff diff --git a/tools/virtio/linux/mm_types.h b/tools/virtio/linux/mm_types.h new file mode 100644 index 000000000000..3b0fc9bc5b8f --- /dev/null +++ b/tools/virtio/linux/mm_types.h @@ -0,0 +1,3 @@ +struct folio { + struct page page; +}; At least, it makes it compile for me. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
