[Bug 483] New: Debug: sleeping function called from illegal context at include/linux/rwsem.h:43

[Martin J. Bligh]

http://bugme.osdl.org/show_bug.cgi?id=483

           Summary: Debug: sleeping function called from illegal context at
                    include/linux/rwsem.h:43
    Kernel Version: 2.5.65
            Status: NEW
          Severity: normal
             Owner: [e-mail]
         Submitter: [e-mail]

Distribution: Debian Sarge
Hardware Environment: IBM Thinkpad 600

Problem Description:

When booting I get:

Debug: sleeping function called from illegal context at include/linux/rwsem.h:43
Call Trace:
 [<c0116628>] __might_sleep+0x54/0x5c
 [<c01cac71>] crypto_alg_lookup+0x21/0xc8
 [<c01cbb3d>] crypto_alg_mod_lookup+0xd/0x30
 [<c01cae2d>] crypto_alloc_tfm+0x11/0xc0
 [<c02c40d0>] __ipv6_regen_rndid+0xa0/0x1f4
 [<c0114ca1>] wake_up_process+0xd/0x14
 [<c02c4252>] ipv6_regen_rndid+0x2e/0xc4
 [<c011f099>] run_timer_softirq+0xf1/0x144
 [<c02c4224>] ipv6_regen_rndid+0x0/0xc4
 [<c011b8f1>] do_softirq+0x51/0xb0
 [<c010a300>] do_IRQ+0x114/0x130
 [<c0106f54>] default_idle+0x0/0x34
 [<c0106f54>] default_idle+0x0/0x34
 [<c0108ea8>] common_interrupt+0x18/0x20
 [<c0106f54>] default_idle+0x0/0x34
 [<c0106f54>] default_idle+0x0/0x34
 [<c0106f7a>] default_idle+0x26/0x34
 [<c0107009>] cpu_idle+0x35/0x44
 [<c0105000>] rest_init+0x0/0x5c
 [<c0105055>] rest_init+0x55/0x5c

__ipv6_regen_rndid(): too short regeneration interval; timer diabled for eth0.

Steps to reproduce:

The kernel is compiled with
root@gswi1164:/usr/src/linux-2.5.65# grep CRYPT .config
CONFIG_CRYPTO=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=m
CONFIG_CRYPTO_SHA1=m
CONFIG_CRYPTO_SHA256=m
CONFIG_CRYPTO_SHA512=m
CONFIG_CRYPTO_DES=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_AES=m
CONFIG_CRYPTO_TEST=m
root@gswi1164:/usr/src/linux-2.5.65# grep IPV6 .config
CONFIG_IPV6=y
CONFIG_IPV6_PRIVACY=y