On Sun, 25 Feb 2001, Marc Lehmann wrote:
> Oh, and one last thing I forgot: loop devices. Since 2.4.1 (the first
> version I used) through 2.4.2 and 2.4.2ac3 I only get:
>
> cerebro:~# strace -f -o x losetup -e rc6 /dev/loop0 /dev/hdd
> Memory Fault
>
> And then no access to the loop device works anymore (clearly this is after
> the 2.4.0.something crypto-patch applied, so this is probably not a 2.4.2
> issue anyway since there is no 2.4.2 crypto patch).
Hmm.. I remember having this problem and it was a problem with strace.
I fiddled with it and got it to work, but damned if I remember what
I did (had to be something trivial since I know jack spit about it:).
Anyway, it works fine here with virgin 2.4.2, so it seems unlikely it's
a kernel problem.
259 execve("/sbin/losetup", ["losetup", "/dev/loop0", "/dev/hda5"], [/* 47 vars */]) = 0
259 brk(0) = 134525772
259 old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40018000
259 open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory)
259 open("/etc/ld.so.cache", O_RDONLY) = 4
259 fstat64(4, {st_mode=S_IFREG|0644, st_size=78316, ...}) = 0
259 old_mmap(NULL, 78316, PROT_READ, MAP_PRIVATE, 4, 0) = 0x40019000
259 close(4) = 0
259 open("/lib/libc.so.6", O_RDONLY) = 4
259 read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\200\324"..., 1024) = 1024
259 fstat64(4, {st_mode=S_IFREG|0755, st_size=1401805, ...}) = 0
259 old_mmap(NULL, 1134564, PROT_READ|PROT_EXEC, MAP_PRIVATE, 4, 0) = 0x4002d000
259 mprotect(0x40138000, 40932, PROT_NONE) = 0
259 old_mmap(0x40138000, 28672, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 4, 0x10a000) = 0x40138000
259 old_mmap(0x4013f000, 12260, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x4013f000
259 close(4) = 0
259 munmap(0x40019000, 78316) = 0
259 getpid() = 259
259 brk(0) = 134525772
259 brk(0x804b374) = 134525812
259 brk(0x804c000) = 134529024
259 open("/dev/hda5", O_RDWR) = 4
259 open("/dev/loop0", O_RDWR) = -1 ENOSYS (Function not implemented)
259 open("/dev/loop0", O_RDWR) = -1 ENOSYS (Function not implemented)
259 open("/dev/loop0", O_RDWR) = 5
259 mlockall(0x3, 0xbffff9d3) = 0
259 ioctl(5, LOOP_SET_FD, 0x4) = 0
259 ioctl(5, LOOP_SET_STATUS, 0xbffff700) = 0
259 close(5) = 0
259 close(4) = 0
259 _exit(0) = ?
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This archive was generated by hypermail 2b29 : Wed Feb 28 2001 - 21:00:10 EST