Package: udev Version: 240-2 Severity: critical Justification: Breaks whole system
Hi, I have no idea why this is happening, but several packages use "udevadm control --reload-rules" in their postinst (e.g. fuse) and if that's run, all process except init are instantly killed (reproducibly; the gettys seem to be respawned by init then, so I can login locally again) and since sshd is killed, too, the system is usually no more accessible from remote (hence the severity "critical") despite still responding to ping replies. There's nothing in dmesg. And corekeeper didn't catch any core either. Some more details which might be helpful: * The udev daemon itself also vanishes and this happens independently of the udev daemon being running or not (i.e. "service udev start" before calling udevadm doesn't prevent this from happening). * The other two udevadm command from fuse's postinst don't seem to trigger this: udevadm test --action -p $(udevadm info -q path -n /dev/fuse) * It first happened when I install linux-image-4.20-trunk-amd64 from experimental about a week ago or so. Since I was away from home until yesterday evening, I could only recently start to debug this. Here's an strace of that command: execve("/sbin/udevadm", ["udevadm", "control", "--reload-rules"], 0x7ffd60743730 /* 39 vars */) = 0 brk(NULL) = 0x561a4e851000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=446764, ...}) = 0 mmap(NULL, 446764, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f52728ca000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\260A\2\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1824496, ...}) = 0 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f52728c8000 mmap(NULL, 1837056, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5272707000 mprotect(0x7f5272729000, 1658880, PROT_NONE) = 0 mmap(0x7f5272729000, 1343488, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x22000) = 0x7f5272729000 mmap(0x7f5272871000, 311296, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16a000) = 0x7f5272871000 mmap(0x7f52728be000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b6000) = 0x7f52728be000 mmap(0x7f52728c4000, 14336, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f52728c4000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/libkmod.so.2", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0206\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=100400, ...}) = 0 mmap(NULL, 102472, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f52726ed000 mprotect(0x7f52726f0000, 86016, PROT_NONE) = 0 mmap(0x7f52726f0000, 61440, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f52726f0000 mmap(0x7f52726ff000, 20480, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x12000) = 0x7f52726ff000 mmap(0x7f5272705000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17000) = 0x7f5272705000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libacl.so.1", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\37\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=35488, ...}) = 0 mmap(NULL, 2130592, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f52724e4000 mprotect(0x7f52724eb000, 2097152, PROT_NONE) = 0 mmap(0x7f52726eb000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7f52726eb000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libblkid.so.1", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\257\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=343008, ...}) = 0 mmap(NULL, 345896, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f527248f000 mprotect(0x7f5272499000, 282624, PROT_NONE) = 0 mmap(0x7f5272499000, 212992, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa000) = 0x7f5272499000 mmap(0x7f52724cd000, 65536, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3e000) = 0x7f52724cd000 mmap(0x7f52724de000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4e000) = 0x7f52724de000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0@k\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=155296, ...}) = 0 mmap(NULL, 2259632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5272267000 mprotect(0x7f527228c000, 2093056, PROT_NONE) = 0 mmap(0x7f527248b000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x24000) = 0x7f527248b000 mmap(0x7f527248d000, 6832, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f527248d000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0@l\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=146968, ...}) = 0 mmap(NULL, 132288, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5272246000 mmap(0x7f527224c000, 61440, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7f527224c000 mmap(0x7f527225b000, 24576, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15000) = 0x7f527225b000 mmap(0x7f5272261000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1a000) = 0x7f5272261000 mmap(0x7f5272263000, 13504, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5272263000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/lib/x86_64-linux-gnu/liblzma.so.5", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\2200\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=154376, ...}) = 0 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5272244000 mmap(NULL, 2249360, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f527201e000 mprotect(0x7f5272043000, 2093056, PROT_NONE) = 0 mmap(0x7f5272242000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x24000) = 0x7f5272242000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libattr.so.1", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300\23\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=18832, ...}) = 0 mmap(NULL, 2113904, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5271e19000 mprotect(0x7f5271e1d000, 2093056, PROT_NONE) = 0 mmap(0x7f527201c000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f527201c000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libuuid.so.1", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 #\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=30776, ...}) = 0 mmap(NULL, 32792, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5271e10000 mmap(0x7f5271e12000, 16384, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f5271e12000 mmap(0x7f5271e16000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7f5271e16000 mmap(0x7f5271e17000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x7f5271e17000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpcre.so.3", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340!\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=468944, ...}) = 0 mmap(NULL, 471304, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5271d9c000 mmap(0x7f5271d9e000, 335872, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f5271d9e000 mmap(0x7f5271df0000, 122880, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x54000) = 0x7f5271df0000 mmap(0x7f5271e0e000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x71000) = 0x7f5271e0e000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000\21\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0644, st_size=14592, ...}) = 0 mmap(NULL, 16656, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5271d97000 mmap(0x7f5271d98000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7f5271d98000 mmap(0x7f5271d99000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f5271d99000 mmap(0x7f5271d9a000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f5271d9a000 close(3) = 0 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5271d95000 mmap(NULL, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5271d92000 arch_prctl(ARCH_SET_FS, 0x7f5271d928c0) = 0 mprotect(0x7f52728be000, 16384, PROT_READ) = 0 mprotect(0x7f5271d9a000, 4096, PROT_READ) = 0 mprotect(0x7f5272261000, 4096, PROT_READ) = 0 mprotect(0x7f5271e0e000, 4096, PROT_READ) = 0 mprotect(0x7f5271e17000, 4096, PROT_READ) = 0 mprotect(0x7f527201c000, 4096, PROT_READ) = 0 mprotect(0x7f5272242000, 4096, PROT_READ) = 0 mprotect(0x7f527248b000, 4096, PROT_READ) = 0 mprotect(0x7f52724de000, 20480, PROT_READ) = 0 mprotect(0x7f52726eb000, 4096, PROT_READ) = 0 mprotect(0x7f5272705000, 4096, PROT_READ) = 0 mprotect(0x561a4e5b6000, 126976, PROT_READ) = 0 mprotect(0x7f527295f000, 4096, PROT_READ) = 0 munmap(0x7f52728ca000, 446764) = 0 set_tid_address(0x7f5271d92b90) = 10435 set_robust_list(0x7f5271d92ba0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f527224c6b0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f5272258670}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f527224c740, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f5272258670}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 statfs("/sys/fs/selinux", 0x7fffd1c697e0) = -1 ENOENT (No such file or directory) statfs("/selinux", 0x7fffd1c697e0) = -1 ENOENT (No such file or directory) brk(NULL) = 0x561a4e851000 brk(0x561a4e872000) = 0x561a4e872000 openat(AT_FDCWD, "/proc/filesystems", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 read(3, "nodev\tsysfs\nnodev\trootfs\nnodev\tr"..., 1024) = 360 read(3, "", 1024) = 0 close(3) = 0 access("/etc/selinux/config", F_OK) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/etc/udev/udev.conf", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=281, ...}) = 0 fstat(3, {st_mode=S_IFREG|0644, st_size=281, ...}) = 0 read(3, "# see udev.conf(5) for details\n#"..., 4096) = 281 read(3, "", 4096) = 0 close(3) = 0 openat(AT_FDCWD, "/proc/self/stat", O_RDONLY|O_CLOEXEC) = 3 fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 read(3, "10435 (udevadm) R 10433 10433 10"..., 1024) = 313 read(3, "", 1024) = 0 close(3) = 0 geteuid() = 0 socket(AF_UNIX, SOCK_SEQPACKET|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3 setsockopt(3, SOL_SOCKET, SO_PASSCRED, [1], 4) = 0 connect(3, {sa_family=AF_UNIX, sun_path="/run/udev/control"}, 20) = 0 sendto(3, "udev-240\0\0\0\0\0\0\0\0\352\35\255\336\4\0\0\0\0\0\0\0\0\0\0\0"..., 280, 0, NULL, 0) = 280 poll([{fd=3, events=POLLIN}], 1, 60000) = 1 ([{fd=3, revents=POLLIN|POLLHUP}]) close(3) = 0 exit_group(0) = ? +++ exited with 0 +++ -- Package-specific info:
-- BEGIN ATTACHMENTS -- /tmp/tmp.OEUJanWtWB/udev-database.txt -- END ATTACHMENTS --
-- System Information: Debian Release: buster/sid APT prefers unstable APT policy: (990, 'unstable'), (600, 'testing'), (500, 'unstable-debug'), (500, 'buildd-unstable'), (110, 'experimental'), (1, 'experimental-debug'), (1, 'buildd-experimental') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-1-amd64 (SMP w/8 CPU cores) Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages udev depends on: ii adduser 3.118 ii libacl1 2.2.52-3+b1 ii libblkid1 2.33-0.2 ii libc6 2.28-4 ii libkmod2 25-2 ii libselinux1 2.8-1+b1 ii libudev1 240-2 ii lsb-base 10.2018112800 ii util-linux 2.33-0.2 udev recommends no packages. udev suggests no packages. Versions of packages udev is related to: pn systemd <none> -- no debconf information