kmupdate giving error

[Sandesh Chopdekar]

Hi,
I am working on making an already existing
module as a dlkm. Afetr making code changes.
while trying to register it using config I
got following error
[root@ws1] /usr/sbin/config -M npp -u
Generating module: npp...
Requesting loadable module update...
kmmodreg: Could not obtain the boot kernel path
kmupdate: Module npp registration failed.

Got similar result with "mk_kernel -M npp"
It's a pseudo driver.
I don't know why kmupdate is giving error.
I am running this command from /stand directory

Thanks,
Sandesh

[Bruno Ganino]

Could be the path not correct.
When is not specified assumes that the kernel is located at /stand/vmunix. If your machine is booted with a test kernel, say /stand/vmunix_test to see listing pass the kernel. Run kmpath to identify the kernel the host is booted with.

[Dietmar Konermann]

Sandesh,

the kmupdate command calls "kmpath -c"... and this should typically return "/stand/dlkm". Please run that command manually and report what happens. Do you see messages like "DLKM is not initialized" in your dmesg output?

Best regards...
Dietmar.

[Sandesh Chopdekar]

Hi,
Thanks for the reply.

kmpath didn't o/p anything on the system
[root@mac1] kmpath
[root@mac1] echo $?
3
[root@mac1]

from errno.h
#define ESRCH 3 /* No such process */

Is there some problem with the OS version I
am running ?
Here's the uname o/p
[root@mac1] uname -a
HP-UX mac1 B.11.11 U 9000/785 2001031186 [root@mac1]

[root@mac1] ls -ltr /stand/vmunix
-rwxr-xr-x 1 root sys 24876440 Dec 3 11:46 /stand/vmunix*
[root@mac1]

Is it searching for vmunix_test ?

Thanks,
Sandesh

[Dietmar Konermann]

Nothing in dmesg? Could you try to run kmpath through tusc? Maybe the modadm(MOD_TY_NONE, MOD_C_KPATH,...) syscall fails for some reason.

Best regards...
Dietmar.

[Sandesh Chopdekar]

Hi Dietmar,
Sorry to miss out dmeg

Here's the demsg output

WARNING: modadm: DLKM is not initialized
WARNING: modadm: DLKM is not initialized
WARNING: modadm: DLKM is not initialized
WARNING: modadm: DLKM is not initialized
WARNING: modadm: DLKM is not initialized
WARNING: modadm: DLKM is not initialized
WARNING: modadm: DLKM is not initialized
WARNING: modadm: DLKM is not initialized

One more thing - The h/w is PA-RISC

Here's the tusc output -> your doubt seems
to be true - modadm did gave an error.

Do I need to set some env variables ?

[root@mac1] /home/dlkm/tusc kmpath -k
execve("/usr/sbin/kmpath", 0x7f7f0418, 0x7f7f0424) ................................................. = 0 [32-bit]
utssys("HP-UX", 0, 0) .............................................................................. = 0
open("/usr/lib/dld.sl", O_RDONLY, 02020) ........................................................... = 3
read(3, "02\v010e0512@ \0\0\0\0\0\0\0\0\0".., 128) ................................................. = 128
lseek(3, 128, SEEK_SET) ............................................................................ = 128
read(3, "10\0\004\0\0\0( \001a194\0\0\0\0".., 48) .................................................. = 48
mmap(0, 106900, PROT_READ|PROT_EXEC, MAP_SHARED|MAP_SHLIB, 3, 0x7000) .............................. = 0xc0010000
mmap(0, 13000, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_SHLIB, 3, 0x22000) .................. = 0x7b050000
close(3) ........................................................................................... = 0
getuid() ........................................................................................... = 0 (0)
getuid() ........................................................................................... = 0 (0)
getgid() ........................................................................................... = 3 (3)
getgid() ........................................................................................... = 3 (3)
mmap(0, 8192, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) .................... = 0x7b04e000
sysconf(_SC_CPU_VERSION) ........................................................................... = 0x214
open("/opt/graphics/OpenGL/lib/libogltls.sl", O_RDONLY, 0) ......................................... ERR#2 ENOENT
open("/usr/lib/libc.2", O_RDONLY, 0) ............................................................... = 3
fstat(3, 0x7f7f2d80) ............................................................................... = 0
read(3, "0214010e0512@ \0\0\0\0\0\0\0\0\0".., 128) ................................................. = 128
lseek(3, 128, SEEK_SET) ............................................................................ = 128
read(3, "10\0\004\0\0\0( \013y c4\0\010\0".., 48) .................................................. = 48
read(3, "80\0\0\v\0\0\004\0\0\0\0", 12) ............................................................ = 12
lseek(3, 430080, SEEK_SET) ......................................................................... = 430080
read(3, "058cy 10\0\0\ad \0\0K L \0\0\002".., 112) ................................................. = 112
mmap(0, 1277952, PROT_READ|PROT_EXEC, MAP_SHARED|MAP_SHLIB, 3, 0x69000) ............................ = 0xc0100000
mmap(0, 45056, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS|MAP_SHLIB, -1, 0) ......... = 0x7b043000
mmap(0x7b03b000, 32768, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_SHLIB, 3, 0x1a1000) = 0x7b03b000
mmap(0, 16384, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) ................... = 0x7b037000
close(3) ........................................................................................... = 0
open("/usr/lib/libdld.2", O_RDONLY, 0) ............................................................. = 3
fstat(3, 0x7f7f2e80) ............................................................................... = 0
read(3, "02\v010e0512@ \0\0\0\0\0\0\0\0\0".., 128) ................................................. = 128
lseek(3, 128, SEEK_SET) ............................................................................ = 128
read(3, "10\0\004\0\0\0( \0\0# 4 \0\010\0".., 48) .................................................. = 48
read(3, "80\0\0\v\0\0\004\0\0\0\0", 12) ............................................................ = 12
lseek(3, 8192, SEEK_SET) ........................................................................... = 8192
read(3, "058cy 10\0\0\0\f\0\00198\0\0\001".., 112) ................................................. = 112
mmap(0, 12288, PROT_READ|PROT_EXEC, MAP_SHARED|MAP_SHLIB, 3, 0x2000) ............................... = 0xc0005000
mmap(0, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_SHLIB, 3, 0x5000) .................... = 0x7b036000
close(3) ........................................................................................... = 0
open("/usr/lib/libc.2", O_RDONLY, 0) ............................................................... = 3
fstat(3, 0x7f7f2f80) ............................................................................... = 0
read(3, "0214010e0512@ \0\0\0\0\0\0\0\0\0".., 128) ................................................. = 128
lseek(3, 128, SEEK_SET) ............................................................................ = 128
read(3, "10\0\004\0\0\0( \013y c4\0\010\0".., 48) .................................................. = 48
read(3, "80\0\0\v\0\0\004\0\0\0\0", 12) ............................................................ = 12
lseek(3, 430080, SEEK_SET) ......................................................................... = 430080
read(3, "058cy 10\0\0\ad \0\0K L \0\0\002".., 112) ................................................. = 112
mmap(0, 1277952, PROT_READ|PROT_EXEC, MAP_SHARED|MAP_SHLIB, 3, 0x69000) ............................ ERR#12 ENOMEM
close(3) ........................................................................................... = 0
mmap(0, 40, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) ...................... = 0x7b035000
sigsetreturn(0x7b038f36, 0x6211988, 1392) .......................................................... = 0
sigsetreturn(0x7b038f36, 0x6211988, 1392) .......................................................... = 0
sigvec(SIGSYS, 0x7f7f0de0, 0x7f7f0df0) ............................................................. = 0
Inconsistent arg # for syscall 487 (modadm): 3/0
modadm(0, 98, 2139031936) .......................................................................... ERR#251 ENOSYS
exit(3) ............................................................................................ WIFEXITED(3)
[root@mac1]

Thanks,
Sandesh

[Bruno Ganino]

After suggestions received, see here
http://h21007.www2.hp.com/dspp/files/unprotected/Drivers/Docs/Refs/dlkm_v1.2.pdf
HTH
Bruno

[Dietmar Konermann]

Sandesh,

sorry for the late response... Friday I was on FTO.

Obviously it looks like your DLKM subsystem is not initialized. Initialization happens normally during bootup. You should be able to resolve that problem by re-building the kernel and it's symbol table before rebooting:

# mk_kernel
# kmupdate
# shutdown -r 0

Best regards...
Dietmar.