From 043ff2e2f0fc0f7033460ea562fe8a3f7988f2a9 Mon Sep 17 00:00:00 2001 From: Zbigniew Jędrzejewski-Szmek Date: Sep 20 2020 11:11:35 +0000 Subject: Add patch for kernel bug --- diff --git a/f58b96d3e8d1cb0dd3666bc74fa673918b586612.patch b/f58b96d3e8d1cb0dd3666bc74fa673918b586612.patch new file mode 100644 index 0000000..84497ad --- /dev/null +++ b/f58b96d3e8d1cb0dd3666bc74fa673918b586612.patch @@ -0,0 +1,129 @@ +From f58b96d3e8d1cb0dd3666bc74fa673918b586612 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= +Date: Mon, 14 Sep 2020 17:58:03 +0200 +Subject: [PATCH] test-mountpointutil-util: do not assert in test_mnt_id() + +https://bugzilla.redhat.com/show_bug.cgi?id=1803070 + +I *think* this a kernel bug: the mnt_id as listed in /proc/self/mountinfo is different +than the one we get from /proc/self/fdinfo/. This only matters when both statx and +name_to_handle_at are unavailable and we hit the fallback path that goes through fdinfo: + +(gdb) !uname -r +5.6.19-200.fc31.ppc64le + +(gdb) !cat /proc/self/mountinfo +697 664 253:0 /var/lib/mock/fedora-31-ppc64le/root / rw,relatime shared:298 master:1 - xfs /dev/mapper/fedora_rh--power--vm14-root rw,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota +698 697 253:0 /var/cache/mock/fedora-31-ppc64le/yum_cache /var/cache/yum rw,relatime shared:299 master:1 - xfs /dev/mapper/fedora_rh--power--vm14-root rw,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota +699 697 253:0 /var/cache/mock/fedora-31-ppc64le/dnf_cache /var/cache/dnf rw,relatime shared:300 master:1 - xfs /dev/mapper/fedora_rh--power--vm14-root rw,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota +700 697 0:32 /mock-selinux-plugin.7me9bfpi /proc/filesystems rw,nosuid,nodev shared:301 master:18 - tmpfs tmpfs rw,seclabel <========================================================== +701 697 0:41 / /sys ro,nosuid,nodev,noexec,relatime shared:302 - sysfs sysfs ro,seclabel +702 701 0:21 / /sys/fs/selinux ro,nosuid,nodev,noexec,relatime shared:306 master:8 - selinuxfs selinuxfs rw +703 697 0:42 / /dev rw,nosuid shared:303 - tmpfs tmpfs rw,seclabel,mode=755 +704 703 0:43 / /dev/shm rw,nosuid,nodev shared:304 - tmpfs tmpfs rw,seclabel +705 703 0:45 / /dev/pts rw,nosuid,noexec,relatime shared:307 - devpts devpts rw,seclabel,gid=5,mode=620,ptmxmode=666 +706 703 0:6 /btrfs-control /dev/btrfs-control rw,nosuid shared:308 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +707 703 0:6 /loop-control /dev/loop-control rw,nosuid shared:309 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +708 703 0:6 /loop0 /dev/loop0 rw,nosuid shared:310 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +709 703 0:6 /loop1 /dev/loop1 rw,nosuid shared:311 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +710 703 0:6 /loop10 /dev/loop10 rw,nosuid shared:312 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +711 703 0:6 /loop11 /dev/loop11 rw,nosuid shared:313 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +712 703 0:6 /loop2 /dev/loop2 rw,nosuid shared:314 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +713 703 0:6 /loop3 /dev/loop3 rw,nosuid shared:315 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +714 703 0:6 /loop4 /dev/loop4 rw,nosuid shared:316 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +715 703 0:6 /loop5 /dev/loop5 rw,nosuid shared:317 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +716 703 0:6 /loop6 /dev/loop6 rw,nosuid shared:318 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +717 703 0:6 /loop7 /dev/loop7 rw,nosuid shared:319 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +718 703 0:6 /loop8 /dev/loop8 rw,nosuid shared:320 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +719 703 0:6 /loop9 /dev/loop9 rw,nosuid shared:321 master:9 - devtmpfs devtmpfs rw,seclabel,size=4107840k,nr_inodes=64185,mode=755 +720 697 0:44 / /run rw,nosuid,nodev shared:305 - tmpfs tmpfs rw,seclabel,mode=755 +721 720 0:25 /systemd/nspawn/propagate/9cc8a155d0244558b273f773d2b92142 /run/systemd/nspawn/incoming ro master:12 - tmpfs tmpfs rw,seclabel,mode=755 +722 697 0:32 /mock-resolv.dvml91hp /etc/resolv.conf rw,nosuid,nodev shared:322 master:18 - tmpfs tmpfs rw,seclabel +725 697 0:47 / /proc rw,nosuid,nodev,noexec,relatime shared:323 - proc proc rw +603 725 0:47 /sys /proc/sys ro,nosuid,nodev,noexec,relatime shared:323 - proc proc rw +604 725 0:44 /systemd/inaccessible/reg /proc/kallsyms ro,nosuid,nodev,noexec shared:305 - tmpfs tmpfs rw,seclabel,mode=755 +605 725 0:44 /systemd/inaccessible/reg /proc/kcore ro,nosuid,nodev,noexec shared:305 - tmpfs tmpfs rw,seclabel,mode=755 +606 725 0:44 /systemd/inaccessible/reg /proc/keys ro,nosuid,nodev,noexec shared:305 - tmpfs tmpfs rw,seclabel,mode=755 +607 725 0:44 /systemd/inaccessible/reg /proc/sysrq-trigger ro,nosuid,nodev,noexec shared:305 - tmpfs tmpfs rw,seclabel,mode=755 +608 725 0:44 /systemd/inaccessible/reg /proc/timer_list ro,nosuid,nodev,noexec shared:305 - tmpfs tmpfs rw,seclabel,mode=755 +609 725 0:47 /bus /proc/bus ro,nosuid,nodev,noexec,relatime shared:323 - proc proc rw +610 725 0:47 /fs /proc/fs ro,nosuid,nodev,noexec,relatime shared:323 - proc proc rw +611 725 0:47 /irq /proc/irq ro,nosuid,nodev,noexec,relatime shared:323 - proc proc rw +612 725 0:47 /scsi /proc/scsi ro,nosuid,nodev,noexec,relatime shared:323 - proc proc rw +613 703 0:46 / /dev/mqueue rw,nosuid,nodev,noexec,relatime shared:324 - mqueue mqueue rw,seclabel +614 701 0:26 / /sys/fs/cgroup rw,nosuid,nodev,noexec,relatime shared:325 - cgroup2 cgroup rw,seclabel,nsdelegate +615 603 0:44 /.#proc-sys-kernel-random-boot-id4fbdce67af46d1c2//deleted /proc/sys/kernel/random/boot_id ro,nosuid,nodev,noexec shared:305 - tmpfs tmpfs rw,seclabel,mode=755 +616 725 0:44 /.#proc-sys-kernel-random-boot-id4fbdce67af46d1c2//deleted /proc/sys/kernel/random/boot_id rw,nosuid,nodev shared:305 - tmpfs tmpfs rw,seclabel,mode=755 +617 725 0:44 /.#proc-kmsg5b7a8bcfe6717139//deleted /proc/kmsg rw,nosuid,nodev shared:305 - tmpfs tmpfs rw,seclabel,mode=755 + +The test process does +name_to_handle_at("/proc/filesystems") which returns -EOPNOTSUPP, and then +openat(AT_FDCWD, "/proc/filesystems") which returns 4, and then +read(open("/proc/self/fdinfo/4", ...)) which gives +"pos:\t0\nflags:\t012100000\nmnt_id:\t725\n" + +and the "725" is clearly inconsistent with "700" in /proc/self/mountinfo. + +We could either drop the fallback path (and fail name_to_handle_at() is not +avaliable) or ignore the error in the test. Not sure what is better. I think +this issue only occurs sometimes and with older kernels, so probably continuing +with the current flaky implementation is better than ripping out the fallback. + +Another strace: +writev(2, [{iov_base="mnt ids of /proc/sys is 603", iov_len=27}, {iov_base="\n", iov_len=1}], 2mnt ids of /proc/sys is 603 +) = 28 +name_to_handle_at(AT_FDCWD, "/", {handle_bytes=128 => 12, handle_type=129, f_handle=0x52748401000000008b93e20d}, [697], 0) = 0 +writev(2, [{iov_base="mnt ids of / is 697", iov_len=19}, {iov_base="\n", iov_len=1}], 2mnt ids of / is 697 +) = 20 +name_to_handle_at(AT_FDCWD, "/proc/kcore", {handle_bytes=128 => 12, handle_type=1, f_handle=0x92ddcfcd2e802d0100000000}, [605], 0) = 0 +writev(2, [{iov_base="mnt ids of /proc/kcore is 605", iov_len=29}, {iov_base="\n", iov_len=1}], 2mnt ids of /proc/kcore is 605 +) = 30 +name_to_handle_at(AT_FDCWD, "/dev", {handle_bytes=128 => 12, handle_type=1, f_handle=0x8ae269160c802d0100000000}, [703], 0) = 0 +writev(2, [{iov_base="mnt ids of /dev is 703", iov_len=22}, {iov_base="\n", iov_len=1}], 2mnt ids of /dev is 703 +) = 23 +name_to_handle_at(AT_FDCWD, "/proc/filesystems", {handle_bytes=128}, 0x7fffe36ddb84, 0) = -1 EOPNOTSUPP (Operation not supported) +openat(AT_FDCWD, "/proc/filesystems", O_RDONLY|O_NOFOLLOW|O_CLOEXEC|O_PATH) = 4 +openat(AT_FDCWD, "/proc/self/fdinfo/4", O_RDONLY|O_CLOEXEC) = 5 +fstat(5, {st_mode=S_IFREG|0400, st_size=0, ...}) = 0 +fstat(5, {st_mode=S_IFREG|0400, st_size=0, ...}) = 0 +read(5, "pos:\t0\nflags:\t012100000\nmnt_id:\t725\n", 2048) = 36 +read(5, "", 1024) = 0 +close(5) = 0 +close(4) = 0 +writev(2, [{iov_base="mnt ids of /proc/filesystems are 700, 725", iov_len=41}, {iov_base="\n", iov_len=1}], 2mnt ids of /proc/filesystems are 700, 725 +) = 42 +writev(2, [{iov_base="the other path for mnt id 725 is /proc", iov_len=38}, {iov_base="\n", iov_len=1}], 2the other path for mnt id 725 is /proc +) = 39 +writev(2, [{iov_base="Assertion 'path_equal(p, t)' failed at src/test/test-mountpoint-util.c:94, function test_mnt_id(). Aborting.", iov_len=108}, {iov_base="\n", iov_len=1}], 2Assertion 'path_equal(p, t)' failed at src/test/test-mountpoint-util.c:94, function test_mnt_id(). Aborting. +) = 109 +rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 8) = 0 +rt_sigprocmask(SIG_BLOCK, ~[RTMIN RT_1], [], 8) = 0 +getpid() = 20 +gettid() = 20 +tgkill(20, 20, SIGABRT) = 0 +rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 +--- SIGABRT {si_signo=SIGABRT, si_code=SI_TKILL, si_pid=20, si_uid=0} --- ++++ killed by SIGABRT (core dumped) +++ +--- + src/test/test-mountpoint-util.c | 8 ++++++-- + 1 file changed, 6 insertions(+), 2 deletions(-) + +diff --git a/src/test/test-mountpoint-util.c b/src/test/test-mountpoint-util.c +index 30b00ae4d8b..ffe5144b04a 100644 +--- a/src/test/test-mountpoint-util.c ++++ b/src/test/test-mountpoint-util.c +@@ -89,8 +89,12 @@ static void test_mnt_id(void) { + /* The ids don't match? If so, then there are two mounts on the same path, let's check if + * that's really the case */ + char *t = hashmap_get(h, INT_TO_PTR(mnt_id2)); +- log_debug("the other path for mnt id %i is %s\n", mnt_id2, t); +- assert_se(path_equal(p, t)); ++ log_debug("Path for mnt id %i from /proc/self/mountinfo is %s\n", mnt_id2, t); ++ ++ if (!path_equal(p, t)) ++ /* Apparent kernel bug in /proc/self/fdinfo */ ++ log_warning("Bad mount id given for %s: %d, should be %d", ++ p, mnt_id2, mnt_id); + } + } + diff --git a/systemd.spec b/systemd.spec index 64227c0..0469a50 100644 --- a/systemd.spec +++ b/systemd.spec @@ -78,6 +78,8 @@ Patch0005: 0004-test-path-use-Type-exec.patch Patch0006: 0001-test-acl-util-output-more-debug-info.patch Patch0007: 0001-Do-not-assert-in-test_add_acls_for_user.patch +Patch0009: https://github.com/systemd/systemd/pull/17050/commits/f58b96d3e8d1cb0dd3666bc74fa673918b586612.patch + %ifarch %{ix86} x86_64 aarch64 %global have_gnu_efi 1 %endif @@ -810,6 +812,7 @@ fi - Update to latest stable release (various minor fixes: manager, networking, bootct, kernel-install, systemd-dissect, systemd-homed, fstab-generator, documentation) (#1876905) +- Do not fail in test because of kernel bug (#1803070) * Sun Sep 13 2020 Zbigniew Jędrzejewski-Szmek - 246.5-1 - Update to latest stable release (a bunch of small network-related