Re: [Xen-devel] xway issues / bugs

[Muhammad Atif <m_atif_s@xxxxxxxxx>]

Thanks for the reply and pointing me forward.

Well xm dmesg is giving me nothing related to xway, that is why i never included it in the message. But for more information, please find attached strace output when I try to ssh from one guest to another. The xway switch seems to work perfectly and routes us to shared memory (grant table) mechanism. That is where the problem starts and communication stops. I think that is due to xway driver.

one side note: I am not jumping to conclusions, but i guess the developers of this project have abandoned the project. :(. I have contacted them on the email addresses provided, but so far no response. Or it can be that they are terribly busy bringing it upto unstable tree. :)

=========================================
execve("/usr/bin/ssh", ["ssh", "192.168.0.100"], [/* 15 vars */]) = 0
brk(0)                                  = 0x80049000
access("/etc/ld.so.nohwcap", F_OK)      = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7ef0000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=10106, ...}) = 0
mmap2(NULL, 10106, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7eed000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/libresolv.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\0000!\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=59216, ...}) = 0
mmap2(NULL, 71880, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7edb000
mmap2(0xb7ee9000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xd) = 0xb7ee9000
mmap2(0xb7eeb000, 6344, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7eeb000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/usr/lib/libcrypto.so.0.9.8", 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\270"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=1344548, ...}) = 0
mmap2(NULL, 1360824, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7d8e000
mmap2(0xb7ec3000, 81920, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x134) = 0xb7ec3000
mmap2(0xb7ed7000, 13240, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7ed7000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/libutil.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\0000\n\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=9696, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7d8d000
mmap2(NULL, 12432, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7d89000
mmap2(0xb7d8b000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb7d8b000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/usr/lib/libz.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\340\30"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=78276, ...}) = 0
mmap2(NULL, 81116, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7d75000
mmap2(0xb7d88000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x12) = 0xb7d88000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/libnsl.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`0\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=75500, ...}) = 0
mmap2(NULL, 87848, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7d5f000
mmap2(0xb7d71000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x11) = 0xb7d71000
mmap2(0xb7d73000, 5928, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7d73000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/libcrypt.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\260\6\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=21908, ...}) = 0
mmap2(NULL, 184636, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7d31000
mmap2(0xb7d36000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x4) = 0xb7d36000
mmap2(0xb7d38000, 155964, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7d38000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/usr/lib/libgssapi_krb5.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\0pC\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=113800, ...}) = 0
mmap2(NULL, 112504, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7d15000
mmap2(0xb7d30000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b) = 0xb7d30000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/usr/lib/libkrb5.so.3", 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\0000\t\1"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=512500, ...}) = 0
mmap2(NULL, 511268, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7c98000
mmap2(0xb7d13000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7b) = 0xb7d13000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/usr/lib/libk5crypto.so.3", 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\2008\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=151296, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7c97000
mmap2(NULL, 150752, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7c72000
mmap2(0xb7c96000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x24) = 0xb7c96000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/libcom_err.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\260\10"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=5792, ...}) = 0
mmap2(NULL, 8724, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7c6f000
mmap2(0xb7c71000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb7c71000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/usr/lib/libkrb5support.so.0", 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 \t\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=14164, ...}) = 0
mmap2(NULL, 12936, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7c6b000
mmap2(0xb7c6e000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3) = 0xb7c6e000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/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\0`\1\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1216808, ...}) = 0
mmap2(NULL, 1226148, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7b3f000
mmap2(0xb7c65000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x125) = 0xb7c65000
mmap2(0xb7c68000, 9636, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7c68000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/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\0P\n\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=9684, ...}) = 0
mmap2(NULL, 12412, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7b3b000
mmap2(0xb7b3d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb7b3d000
close(3)                                = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7b3a000
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7b39000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb7b396c0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xb7c65000, 4096, PROT_READ)   = 0
munmap(0xb7eed000, 10106)               = 0
open("/dev/null", O_RDWR|O_LARGEFILE)   = 3
close(3)                                = 0
brk(0)                                  = 0x80049000
brk(0x8006a000)                         = 0x8006a000
getuid32()                              = 0
geteuid32()                             = 0
setresuid32(-1, 0, -1)                  = 0
socket(PF_FILE, SOCK_STREAM, 0)         = 3
fcntl64(3, F_GETFL)                     = 0x2 (flags O_RDWR)
fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK)  = 0
connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(3)                                = 0
socket(PF_FILE, SOCK_STREAM, 0)         = 3
fcntl64(3, F_GETFL)                     = 0x2 (flags O_RDWR)
fcntl64(3, F_SETFL, O_RDWR|O_NONBLOCK)  = 0
connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(3)                                = 0
open("/etc/nsswitch.conf", O_RDONLY)    = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=475, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7eef000
read(3, "# /etc/nsswitch.conf\n#\n# Example"..., 4096) = 475
read(3, "", 4096)                       = 0
close(3)                                = 0
munmap(0xb7eef000, 4096)                = 0
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=10106, ...}) = 0
mmap2(NULL, 10106, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7eed000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/libnss_compat.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`\16\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=26340, ...}) = 0
mmap2(NULL, 29252, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7b31000
mmap2(0xb7b37000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5) = 0xb7b37000
close(3)                                = 0
munmap(0xb7eed000, 10106)               = 0
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=10106, ...}) = 0
mmap2(NULL, 10106, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7eed000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/libnss_nis.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\31\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=34352, ...}) = 0
mmap2(NULL, 37436, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7b27000
mmap2(0xb7b2f000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7) = 0xb7b2f000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/libnss_files.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\0\31\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0644, st_size=34320, ...}) = 0
mmap2(NULL, 37528, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7b1d000
mmap2(0xb7b25000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7) = 0xb7b25000
close(3)                                = 0
munmap(0xb7eed000, 10106)               = 0
open("/etc/passwd", O_RDONLY)           = 3
fcntl64(3, F_GETFD)                     = 0
fcntl64(3, F_SETFD, FD_CLOEXEC)         = 0
_llseek(3, 0, [0], SEEK_CUR)            = 0
fstat64(3, {st_mode=S_IFREG|0644, st_size=930, ...}) = 0
mmap2(NULL, 930, PROT_READ, MAP_SHARED, 3, 0) = 0xb7eef000
_llseek(3, 930, [930], SEEK_SET)        = 0
munmap(0xb7eef000, 930)                 = 0
close(3)                                = 0
umask(022)                              = 022
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
open("/root/.ssh/config", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/etc/ssh/ssh_config", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=1424, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7eef000
read(3, "\n# This is the ssh client system"..., 4096) = 1424
read(3, "", 4096)                       = 0
close(3)                                = 0
munmap(0xb7eef000, 4096)                = 0
getpid()                                = 3040
open("/dev/urandom", O_RDONLY|O_NONBLOCK|O_NOCTTY) = 3
fstat64(3, {st_mode=S_IFCHR|0666, st_rdev=makedev(1, 9), ...}) = 0
poll([{fd=3, events=POLLIN, revents=POLLIN}], 1, 10) = 1
read(3, "|\274g\246|({\243\227\\\2025\323\302^\341\34D}\301(\3\n"..., 32) = 32
close(3)                                = 0
getuid32()                              = 0
time(NULL)                              = 978411225
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=10106, ...}) = 0
mmap2(NULL, 10106, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7eed000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = 0
open("/lib/libnss_db.so.2", O_RDONLY)   = -1 ENOENT (No such file or directory)
stat64("/lib", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/usr/lib/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/usr/lib", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/lib/i486-linux-gnu/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/lib/i486-linux-gnu", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
open("/usr/lib/i486-linux-gnu/libnss_db.so.2", O_RDONLY) = -1 ENOENT (No such file or directory)
stat64("/usr/lib/i486-linux-gnu", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
munmap(0xb7eed000, 10106)               = 0
open("/etc/services", O_RDONLY)         = 3
fcntl64(3, F_GETFD)                     = 0
fcntl64(3, F_SETFD, FD_CLOEXEC)         = 0
fstat64(3, {st_mode=S_IFREG|0644, st_size=18038, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7eef000
read(3, "# Network services, Internet sty"..., 4096) = 4096
close(3)                                = 0
munmap(0xb7eef000, 4096)                = 0
socket(PF_NETLINK, SOCK_RAW, 0)         = 3
bind(3, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 0
getsockname(3, {sa_family=AF_NETLINK, pid=3040, groups=00000000}, [12]) = 0
time(NULL)                              = 978411225
sendto(3, "\24\0\0\0\26\0\1\3\331^Q:\0\0\0\0\0\0\0\0", 20, 0, {sa_family=AF_NETLINK, pid=0, groups=00000000}, 12) = 20
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"<\0\0\0\24\0\2\0\331^Q:\340\v\0\0\2\10\200\376\1\0\0\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 128
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"@\0\0\0\24\0\2\0\331^Q:\340\v\0\0\n\200\200\376\1\0\0\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 128
recvmsg(3, {msg_name(12)={sa_family=AF_NETLINK, pid=0, groups=00000000}, msg_iov(1)=[{"\24\0\0\0\3\0\2\0\331^Q:\340\v\0\0\0\0\0\0\1\0\0\0\24\0"..., 4096}], msg_controllen=0, msg_flags=0}, 0) = 20
close(3)                                = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
connect(3, {sa_family=AF_INET, sin_port=htons(22), sin_addr=inet_addr("192.168.0.100")}, 16) = 0
setsockopt(3, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0
setresuid32(-1, 0, -1)                  = 0
getuid32()                              = 0
getgid32()                              = 0
setregid32(0, 0)                        = 0
setreuid32(0, 0)                        = 0
getgid32()                              = 0
getegid32()                             = 0
getuid32()                              = 0
geteuid32()                             = 0
stat64("/root/.ssh", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
open("/etc/passwd", O_RDONLY)           = 4
fcntl64(4, F_GETFD)                     = 0
fcntl64(4, F_SETFD, FD_CLOEXEC)         = 0
_llseek(4, 0, [0], SEEK_CUR)            = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=930, ...}) = 0
mmap2(NULL, 930, PROT_READ, MAP_SHARED, 4, 0) = 0xb7eef000
_llseek(4, 930, [930], SEEK_SET)        = 0
munmap(0xb7eef000, 930)                 = 0
close(4)                                = 0
open("/root/.ssh/identity", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/root/.ssh/identity", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/root/.ssh/identity", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/root/.ssh/identity.pub", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/etc/passwd", O_RDONLY)           = 4
fcntl64(4, F_GETFD)                     = 0
fcntl64(4, F_SETFD, FD_CLOEXEC)         = 0
_llseek(4, 0, [0], SEEK_CUR)            = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=930, ...}) = 0
mmap2(NULL, 930, PROT_READ, MAP_SHARED, 4, 0) = 0xb7eef000
_llseek(4, 930, [930], SEEK_SET)        = 0
munmap(0xb7eef000, 930)                 = 0
close(4)                                = 0
open("/root/.ssh/id_rsa", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/root/.ssh/id_rsa", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/root/.ssh/id_rsa", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/root/.ssh/id_rsa.pub", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/etc/passwd", O_RDONLY)           = 4
fcntl64(4, F_GETFD)                     = 0
fcntl64(4, F_SETFD, FD_CLOEXEC)         = 0
_llseek(4, 0, [0], SEEK_CUR)            = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=930, ...}) = 0
mmap2(NULL, 930, PROT_READ, MAP_SHARED, 4, 0) = 0xb7eef000
_llseek(4, 930, [930], SEEK_SET)        = 0
munmap(0xb7eef000, 930)                 = 0
close(4)                                = 0
open("/root/.ssh/id_dsa", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/root/.ssh/id_dsa", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/root/.ssh/id_dsa", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/root/.ssh/id_dsa.pub", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such file or directory)
open("/etc/passwd", O_RDONLY)           = 4
fcntl64(4, F_GETFD)                     = 0
fcntl64(4, F_SETFD, FD_CLOEXEC)         = 0
_llseek(4, 0, [0], SEEK_CUR)            = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=930, ...}) = 0
mmap2(NULL, 930, PROT_READ, MAP_SHARED, 4, 0) = 0xb7eef000
_llseek(4, 930, [930], SEEK_SET)        = 0
munmap(0xb7eef000, 930)                 = 0
close(4)                                = 0
open("/etc/passwd", O_RDONLY)           = 4
fcntl64(4, F_GETFD)                     = 0
fcntl64(4, F_SETFD, FD_CLOEXEC)         = 0
_llseek(4, 0, [0], SEEK_CUR)            = 0
fstat64(4, {st_mode=S_IFREG|0644, st_size=930, ...}) = 0
mmap2(NULL, 930, PROT_READ, MAP_SHARED, 4, 0) = 0xb7eef000
_llseek(4, 930, [930], SEEK_SET)        = 0
munmap(0xb7eef000, 930)                 = 0
close(4)                                = 0
rt_sigaction(SIGPIPE, NULL, {SIG_DFL}, 8) = 0
rt_sigaction(SIGPIPE, {SIG_IGN}, NULL, 8) = 0
read(3,                                                 
=====================================================

Best Regards,
Muhammad Atif

----- Original Message ----
From: Derek Murray <Derek.Murray@xxxxxxxxxxxx>
To: Muhammad Atif <m_atif_s@xxxxxxxxx>
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Sent: Monday, January 7, 2008 10:12:49 PM
Subject: Re: [Xen-devel] xway issues / bugs

On Jan 7, 2008 10:27 AM, Muhammad Atif <m_atif_s@xxxxxxxxx> wrote:
> At the moment, I feel
> that xd.c (the xway driver) is causing the problems and the function is
> import_mem(...) and specific call is
> BUG_ON(HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, ops, npage)); ...

This sounds like the driver is trying (and failing) to map a list of
grant references. Usually when this happens, you will see some output
on the Xen console (which you can read by typing "xm dmesg" in Dom0,
or attaching a serial line). This may help the developers - or people
on this list - to diagnose the problem.

Hope this helps.

Regards,

Derek Murray.

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