Description of problem: Running udevinfo -d with redirected output generates extra error output on ia64 RHEL4AS Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1. udevinfo -d > /tmp/output 2. 3. Actual results: udevinfo(8055): unaligned access to 0x6000000000019a49, ip=0x4000000000002530 udevinfo(8055): unaligned access to 0x6000000000019b51, ip=0x40000000000025e0 udevinfo(8055): unaligned access to 0x6000000000019c59, ip=0x4000000000002611 udevinfo(8055): unaligned access to 0x6000000000019c5c, ip=0x4000000000002611 Expected results: udevinfo dumps the db without segmentation Additional info:
Could you please start this with gdb and the debuginfo package installed?
strace udevinfo -d > /tmp/output: open("/dev/.udev.tdb", O_RDONLY) = 3 fcntl(3, F_GETFD) = 0 fcntl(3, F_SETFD, FD_CLOEXEC) = 0 read(3, "TDB file\n\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 168) = 168 fstat(3, {st_mode=S_IFREG|0644, st_size=163840, ...}) = 0 mmap(NULL, 163840, PROT_READ, MAP_SHARED, 3, 0) = 0x2000000000400000 fstat(1, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 mmap(NULL, 65536, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2000000000428000 udevinfo(13901): unaligned access to 0x6000000000019a49, ip=0x4000000000002530 udevinfo(13901): unaligned access to 0x6000000000019b51, ip=0x40000000000025e0 udevinfo(13901): unaligned access to 0x6000000000019c59, ip=0x4000000000002611 udevinfo(13901): unaligned access to 0x6000000000019c5c, ip=0x4000000000002611 munmap(0x2000000000400000, 163840) = 0 close(3) = 0 write(1, "P: /class/tty/tty53\nN: tty53\nT: "..., 14985) = 14985 munmap(0x2000000000428000, 65536) = 0 exit_group(0) = ? Process 13901 detached
Jan, this looks like an unaligned access, not a segfault. Did the program actually segfault?
This request was evaluated by Red Hat Engineering for inclusion in a Red Hat Enterprise Linux maintenance release. As this bug has been open with a request for information for an extended period of time we are going to close this bug due to inactivity. If you would like to persue this matter feel free to reopen this bug and attach the needed information. With the goal of minimizing risk of change for deployed systems, and in response to customer and partner requirements, Red Hat takes a conservative approach when evaluating enhancements for inclusion in maintenance updates for currently deployed products. The primary objectives of update releases are to enable new hardware platform support and to resolve critical defects. However, Red Hat will further review this request for potential inclusion in future major releases of Red Hat Enterprise Linux.