Messages in this thread | | | Date | Wed, 08 Feb 2006 08:48:48 +0100 | From | Jan Dittmer <> | Subject | Re: VFS: Busy inodes after unmount. Self-destruct in 5 seconds. Have a nice day... |
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Andrew Morton wrote: > Jan Dittmer <jdi@l4x.org> wrote: > >>Debian 2.6.15-1-686-smp >> >>$ umount /mnt/data >>Segmentation Fault >> >>dmesg: >> >>VFS: Busy inodes after unmount. Self-destruct in 5 seconds. Have a nice day... >>Unable to handle kernel NULL pointer dereference at virtual address 00000034 > > > That was clever. > > >> printing eip: >>f88c7e07 >>*pde = 00000000 >>Oops: 0000 [#1] >>SMP >>Modules linked in: xfs rfcomm l2cap bluetooth nfsd exportfs lockd nfs_acl sunrpc ipv6 deflate zlib_deflate twofish serpent aes blowfish des sha256 >>sha1 crypto_n ull af_key raid5 xor dm_mod tun vfat fat loop lp usbmouse eeprom i2c_dev i2c_isa i2c_core usbkbd usb_storage ehci_hcd button processor >>ac ide_cd cdrom e100 mii 3w_xxxx e1000 joydev piix serio_raw uhci_hcd generic parport_pc ide_core usbcore parport pcspkr psmouse rtc ext3 jbd mbcache >>raid1 md_mod sd_mod aic79xx scsi_tr ansport_spi scsi_mod shpchp pci_hotplug evdev mousedev >>CPU: 2 >>EIP: 0060:[<f88c7e07>] Not tainted VLI >>EFLAGS: 00210282 (2.6.15-1-686-smp) >>EIP is at ext3_show_options+0x13/0xd5 [ext3] >>eax: 00000000 ebx: f7f1fe00 ecx: da82c540 edx: 00000000 >>esi: da82c540 edi: da82c540 ebp: 00000400 esp: f7bcbf18 >>ds: 007b es: 007b ss: 0068 >>Process mv (pid: 4409, threadinfo=f7bca000 task=e9978a70) >>Stack: 00000000 dfd74c00 c01646cf da82c540 dfd74c00 da82c540 dfd74c00 00000143 >> c0167ffd da82c540 dfd74c00 00000000 da82c560 0000000a 00000000 00000009 >> 00000000 00000400 e64cea80 40019000 00000000 c014ca9d e64cea80 40019000 >>Call Trace: >> [<c01646cf>] show_vfsmnt+0xcf/0xe6 >> [<c0167ffd>] seq_read+0x199/0x26a >> [<c014ca9d>] vfs_read+0xa1/0x138 > > > Have you any idea what `mv' was doing in ext3_show_options? I can only > think that something was doing `mv /proc/mounts somewhere-else', which is > odd.
No, but it is indeed called:
execve("/bin/mv", ["mv", "t", "t2"], [/* 25 vars */]) = 0 uname({sys="Linux", node="ds666", ...}) = 0 brk(0) = 0x8058000 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) old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f5d000 open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=127118, ...}) = 0 old_mmap(NULL, 127118, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f3d000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/libacl.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\220\23"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0644, st_size=27816, ...}) = 0 old_mmap(NULL, 30788, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7f35000 old_mmap(0xb7f3c000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0xb7f3c000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/libselinux.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\2201\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0644, st_size=75508, ...}) = 0 old_mmap(NULL, 76816, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7f22000 old_mmap(0xb7f34000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x12000) = 0xb7f34000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/tls/i686/cmov/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\260O\1"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1262704, ...}) = 0 old_mmap(NULL, 1272764, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7deb000 old_mmap(0xb7f18000, 32768, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x12c000) = 0xb7f18000 old_mmap(0xb7f20000, 7100, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7f20000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/libattr.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0 \v\0\000"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0644, st_size=10608, ...}) = 0 old_mmap(NULL, 13564, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7de7000 old_mmap(0xb7dea000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0xb7dea000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/tls/i686/cmov/libdl.so.2", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\20\f\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0644, st_size=9592, ...}) = 0 old_mmap(NULL, 12404, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7de3000 old_mmap(0xb7de5000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0xb7de5000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/libsepol.so.1", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\240\"\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0644, st_size=194624, ...}) = 0 old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7de2000 old_mmap(NULL, 235876, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7da8000 old_mmap(0xb7dd7000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2f000) = 0xb7dd7000 old_mmap(0xb7dd8000, 39268, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7dd8000 close(3) = 0 old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7da7000 mprotect(0xb7f18000, 20480, PROT_READ) = 0 set_thread_area({entry_number:-1 -> 6, base_addr:0xb7da76c0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 munmap(0xb7f3d000, 127118) = 0 access("/etc/selinux/", F_OK) = -1 ENOENT (No such file or directory) brk(0) = 0x8058000 brk(0x8079000) = 0x8079000 open("/proc/mounts", O_RDONLY|O_LARGEFILE) = 3 fstat64(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f5c000 read(3, "rootfs / rootfs rw 0 0\n/dev/md7 "..., 1024) = 510 read(3, "", 1024) = 0 close(3) = 0 munmap(0xb7f5c000, 4096) = 0 open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=127118, ...}) = 0 old_mmap(NULL, 127118, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f3d000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/tls/i686/sse2/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/i686/sse2/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/lib/tls/i686/sse2/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/i686/sse2", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/lib/tls/i686/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/i686/cmov", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 open("/lib/tls/i686/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/i686", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 open("/lib/tls/sse2/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/sse2/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/lib/tls/sse2/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/sse2", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/lib/tls/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/lib/tls/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/tls", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 open("/lib/i686/sse2/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i686/sse2/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/lib/i686/sse2/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i686/sse2", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/lib/i686/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i686/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/lib/i686/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/i686", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/lib/sse2/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/sse2/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/lib/sse2/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/sse2", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/lib/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/lib/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/lib", {st_mode=S_IFDIR|0755, st_size=12288, ...}) = 0 open("/usr/lib/tls/i686/sse2/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/i686/sse2/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/i686/sse2/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/i686/sse2", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/i686/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/i686/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/i686/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/i686", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/sse2/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/sse2/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/sse2/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/sse2", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/usr/lib/tls/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/tls", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 open("/usr/lib/i686/sse2/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i686/sse2/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/usr/lib/i686/sse2/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i686/sse2", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/usr/lib/i686/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i686/cmov", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 open("/usr/lib/i686/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/i686", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0 open("/usr/lib/sse2/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/sse2/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/usr/lib/sse2/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/sse2", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/usr/lib/cmov/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib/cmov", 0xbfd7302c) = -1 ENOENT (No such file or directory) open("/usr/lib/libsetrans.so.0", O_RDONLY) = -1 ENOENT (No such file or directory) stat64("/usr/lib", {st_mode=S_IFDIR|0755, st_size=163840, ...}) = 0 munmap(0xb7f3d000, 127118) = 0 geteuid32() = 0 ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 open("/proc/filesystems", O_RDONLY|O_LARGEFILE) = 3 read(3, "nodev\tsysfs\nnodev\trootfs\nnodev\tb"..., 4095) = 253 close(3) = 0 stat64("t2", 0xbfd73608) = -1 ENOENT (No such file or directory) lstat64("t", {st_mode=S_IFREG|0644, st_size=44371, ...}) = 0 lstat64("t2", 0xbfd733e4) = -1 ENOENT (No such file or directory) rename("t", "t2") = 0 close(1) = 0 exit_group(0) = ?
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