Public bug reported: Hi,
I am running ubuntu 10.04 with most recent kernel based on this link https://wiki.ubuntu.com/KernelTeam/GitKernelBuild. I had experienced a strange issue that with 3.7.0-rc4. the ssh service fail to start, but with 3.6.0 kernel, ssh service startup fine. I did 'strace -tt -f -o <output> service start ssh' the difference here: 3.7.0-rc4 strace: 1868 16:45:06.047289 writev(3, [{"l\1\2\1\10\0\0\0\2\0\0\0i\0\0\0\1\1o\0\34\0\0\0/com/ubu"..., 128}, {"\0\0\0\0\1\0\0\0", 8}], 2) = 136 1868 16:45:06.047441 poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}]) 1868 16:45:06.047742 read(3, "l\4\1\1#\0\0\0\2\0\0\0o\0\0\0\1\1o\0\34\0\0\0/com/ubu"..., 2048) = 163 1868 16:45:06.047892 read(3, 0xb92eb050, 2048) = -1 EAGAIN (Resource temporarily unavailable) 1868 16:45:06.047985 gettimeofday({1352421906, 48023}, NULL) = 0 1868 16:45:06.048083 poll([{fd=3, events=POLLIN}], 1, 2078517183) = 1 ([{fd=3, revents=POLLIN}]) 1868 16:45:06.048984 read(3, "l\3\1\1\30\0\0\0\3\0\0\0?\0\0\0\4\1s\0%\0\0\0com.ubun"..., 2048) = 104 1868 16:45:06.049121 read(3, 0xb92eb050, 2048) = -1 EAGAIN (Resource temporarily unavailable) 1868 16:45:06.049319 write(2, "start: Job failed to start\n", 27) = 27 1868 16:45:06.049514 close(3) = 0 1868 16:45:06.049837 exit_group(1) = ? 3.6.0 strace: 2125 16:41:09.150074 writev(3, [{"l\1\2\1\10\0\0\0\2\0\0\0i\0\0\0\1\1o\0\34\0\0\0/com/ubu"..., 128}, {"\0\0\0\0\1\0\0\0", 8}], 2) = 136 2125 16:41:09.150224 poll([{fd=3, events=POLLIN}], 1, -1) = 1 ([{fd=3, revents=POLLIN}]) 2125 16:41:09.150527 read(3, "l\4\1\1#\0\0\0\2\0\0\0o\0\0\0\1\1o\0\34\0\0\0/com/ubu"..., 2048) = 163 2125 16:41:09.150671 read(3, 0xb9302050, 2048) = -1 EAGAIN (Resource temporarily unavailable) 2125 16:41:09.150760 gettimeofday({1352421669, 150798}, NULL) = 0 2125 16:41:09.150857 poll([{fd=3, events=POLLIN}], 1, -2122005215) = 1 ([{fd=3, revents=POLLIN}]) 2125 16:41:09.155263 read(3, "l\2\1\1#\0\0\0\3\0\0\0\17\0\0\0\5\1u\0\2\0\0\0\10\1g\0\1o\0\0"..., 2048) = 67 2125 16:41:09.155456 read(3, 0xb9302050, 2048) = -1 EAGAIN (Resource temporarily unavailable) 2125 16:41:09.155716 writev(3, [{"l\1\2\1)\0\0\0\3\0\0\0h\0\0\0\1\1o\0\34\0\0\0/com/ubu"..., 120}, {"\31\0\0\0com.ubuntu.Upstart0_6.Job\0\0\0"..., 41}], 2) = 161 2125 16:41:09.156108 gettimeofday({1352421669, 156142}, NULL) = 0 2125 16:41:09.156199 poll([{fd=3, events=POLLIN}], 1, 25000) = 1 ([{fd=3, revents=POLLIN}]) 2125 16:41:09.156308 read(3, "l\2\1\1\f\0\0\0\4\0\0\0\17\0\0\0\5\1u\0\3\0\0\0\10\1g\0\1v\0\0"..., 2048) = 44 2125 16:41:09.156465 read(3, 0xb9302050, 2048) = -1 EAGAIN (Resource temporarily unavailable) 2125 16:41:09.156641 writev(3, [{"l\1\2\1#\0\0\0\4\0\0\0g\0\0\0\1\1o\0\36\0\0\0/com/ubu"..., 120}, {"\36\0\0\0com.ubuntu.Upstart0_6.Instan"..., 35}], 2) = 155 2125 16:41:09.157043 gettimeofday({1352421669, 157080}, NULL) = 0 2125 16:41:09.157144 poll([{fd=3, events=POLLIN}], 1, 25000) = 1 ([{fd=3, revents=POLLIN}]) 2125 16:41:09.157258 read(3, "l\2\1\1\210\0\0\0\5\0\0\0\23\0\0\0\5\1u\0\4\0\0\0\10\1g\0\5a{s"..., 2048) = 176 2125 16:41:09.157412 read(3, 0xb9302050, 2048) = -1 EAGAIN (Resource temporarily unavailable) 2125 16:41:09.157564 fstat64(1, {st_mode=S_IFCHR|0600, st_rdev=makedev(136, 0), ...}) = 0 2125 16:41:09.157739 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb73d8000 2125 16:41:09.157834 write(1, "ssh start/running, process 2131\n", 32) = 32 2125 16:41:09.158004 close(3) = 0 2125 16:41:09.158410 exit_group(0) = ? I attached the kernel config and full strace log, is there anything else I can provide to help diagnosis the issue? ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Tags: lucid ** Attachment added: "config-3.7.0-rc1-sshissue" https://bugs.launchpad.net/bugs/1077248/+attachment/3429156/+files/config-3.7.0-rc1-sshissue -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1077248 Title: ubuntu 10.04 with kernel 3.7.0-rc4 stops ssh from starting up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1077248/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
