kern/95804: kldstat -m fails and succeeds randomly

[Jukka A. Ukkonen]

>Number:         95804
>Category:       kern
>Synopsis:       kldstat -m  fails and succeeds randomly
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Apr 15 15:00:30 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Jukka A. Ukkonen
>Release:        6.1-RC
>Organization:
private person
>Environment:
FreeBSD mjolnir 6.1-RC FreeBSD 6.1-RC #0: Fri Apr 14 13:36:01 EET DST 2006     root at mjolnir:/usr/obj/usr/src/sys/Mjolnir  i386

>Description:
Without the -m option kldstat behaves as before.
When used with the -m option kldstat sometimes succeeds and sometimes fails.
And even when it sort of works with the -m option the ID field is shown wrong.
See the example below...

(mjolnir) 14:23 security/openvpn# kldstat 
Id Refs Address    Size     Name
 1   55 0xc0400000 6d477c   kernel
 2    6 0xc0ad5000 22ae8    sound.ko
 3    1 0xc0af8000 7674     snd_emu10k1.ko
 4    1 0xc0b00000 719c     snd_es137x.ko
 5    1 0xc0b08000 4ec0     snd_sb16.ko
 6    3 0xc0b0d000 489c     snd_sbc.ko
 7    1 0xc0b12000 48cc     snd_sb8.ko
 8    1 0xc0b17000 13c40    geom_mirror.ko
 9    1 0xc0b2b000 4a68     atapicam.ko
10    1 0xc0b30000 58554    acpi.ko
11    1 0xc0b89000 9958     hifn.ko
12    1 0xc0b93000 9a54     ubsec.ko
13    1 0xc0b9d000 66c0     safe.ko
14    1 0xc0ba4000 2d94     padlock.ko
15    1 0xc0ba7000 f9a0     if_ath.ko
16    3 0xc0bb7000 3015c    ath_hal.ko
17    2 0xc0be8000 3f1c     ath_rate.ko
18    1 0xc0bec000 2c54     wlan_acl.ko
19    1 0xc0bef000 6d04     wlan_ccmp.ko
20    1 0xc0bf6000 3fa0     wlan_tkip.ko
21    1 0xc0bfa000 2cc8     wlan_wep.ko
22    1 0xc0bfd000 1b10     wlan_xauth.ko
23    1 0xc0bff000 10940    GPLUS.bin.ko
24    1 0xc0c10000 3f7c4    GPLUS_sys.ko
25    1 0xc3b4b000 6000     linprocfs.ko
26    2 0xc3b51000 16000    linux.ko
27    1 0xc3dce000 4000     logo_saver.ko
28    1 0xc3ec1000 2000     rtc.ko
29    1 0xc3f6f000 1c000    radeon.ko
30    1 0xc3f8b000 e000     drm.ko
(mjolnir) 14:33 security/openvpn# kldstat -m hifn
kldstat: can't find module hifn: No such file or directory
(mjolnir) 14:33 security/openvpn# kldstat -m safe
kldstat: can't find module safe: No such file or directory
(mjolnir) 14:33 security/openvpn# kldstat -m  wlan_acl
Id  Refs Name
 38    1 wlan_acl
(mjolnir) 14:33 security/openvpn# kldstat -m GPLUS.bin
kldstat: can't find module GPLUS.bin: No such file or directory
(mjolnir) 14:33 security/openvpn# kldstat -m GPLUS_sys
kldstat: can't find module GPLUS_sys: No such file or directory
(mjolnir) 14:33 security/openvpn# kldstat -m linux
kldstat: can't find module linux: No such file or directory
(mjolnir) 14:33 security/openvpn# kldstat -m radeon
kldstat: can't find module radeon: No such file or directory
(mjolnir) 14:34 security/openvpn# kldstat -m drm
kldstat: can't find module drm: No such file or directory
(mjolnir) 14:34 security/openvpn# kldstat -m wlan_wep
Id  Refs Name
 41    1 wlan_wep

>How-To-Repeat:
See the full description section.
Follow the example set in there.
First list all modules. Everything should be just fine.
Then start trying individual modules one by one.
For some modules kldstat -m should return "No such file or directory" (ENOENT).
For others it may find the module, but with all likelyhood the ID will be wrong.

>Fix:
No fix yet.

>Release-Note:
>Audit-Trail:
>Unformatted: