Same here on a fresh install of hardy/server on a Sun Fire X4600:

Oct 14 11:02:42 jaq kernel: [77822.037534] CPU 1:
Oct 14 11:02:42 jaq kernel: [77822.037536] Modules linked in: des_generic cbc blkcipher binfmt_misc nfsd exportfs autofs4 rpcsec_gss_krb5 auth_rpcgss iptable_filter ip_tables x_tables xfs ipv6 ac nfs lockd nfs_acl sunrpc parport_pc lp parport loop joydev jedec_probe cfi_probe gen_probe mtd i2c_nforce2 chipreg pcspkr serio_raw map_funcs evdev button psmouse k8temp i2c_core shpchp pci_hotplug ext3 jbd mbcache sg sr_mod cdrom pata_amd pata_acpi sd_mod usb_storage libusual usbhid hid mptsas mptscsih mptbase ata_generic qla2xxx(F) scsi_transport_fc ehci_hcd scsi_transport_sas ohci_hcd libata scsi_tgt e1000 scsi_mod usbcore thermal processor fan fuse vesafb fbcon tileblit font bitblit softcursor
Oct 14 11:02:42 jaq kernel: [77822.037582] Pid: 8190, comm: hald-addon-stor Tainted: GF  M    2.6.24-19-server #1
Oct 14 11:02:42 jaq kernel: [77822.037584] RIP: 0010:[auth_rpcgss:lock_kernel+0x1a/0x40]  [auth_rpcgss:lock_kernel+0x1a/0x40] lock_kernel+0x1a/0x40
Oct 14 11:02:42 jaq kernel: [77822.037594] RSP: 0018:ffff8101f2c0bdf0  EFLAGS: 00000286
Oct 14 11:02:42 jaq kernel: [77822.037595] RAX: ffff8101fa1ed7a0 RBX: ffff8103fbc4b900 RCX: 0000000000000000
Oct 14 11:02:42 jaq kernel: [77822.037597] RDX: 0000000000000000 RSI: ffff810145953000 RDI: ffff8103fbc4b900
Oct 14 11:02:42 jaq kernel: [77822.037598] RBP: ffff8103fbc4b900 R08: 0000000000000000 R09: 0000000000000000
Oct 14 11:02:42 jaq kernel: [77822.037600] R10: 0000000000000000 R11: ffffffff8031a350 R12: ffffffff802b754e
Oct 14 11:02:42 jaq kernel: [77822.037601] R13: ffff810145953000 R14: 0000000000008001 R15: fffffffffffffff2
Oct 14 11:02:42 jaq kernel: [77822.037603] FS:  00007fab20284780(0000) GS:ffff8101fae42000(0000) knlGS:00000000abffbb90
Oct 14 11:02:42 jaq kernel: [77822.037605] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Oct 14 11:02:42 jaq kernel: [77822.037606] CR2: 00007f5803717f10 CR3: 00000003fb855000 CR4: 00000000000006e0
Oct 14 11:02:42 jaq kernel: [77822.037608] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Oct 14 11:02:42 jaq kernel: [77822.037609] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Oct 14 11:02:42 jaq kernel: [77822.037611] 
Oct 14 11:02:42 jaq kernel: [77822.037611] Call Trace:
Oct 14 11:02:42 jaq kernel: [77822.037617]  [do_open+0x43/0x330] do_open+0x43/0x330
Oct 14 11:02:42 jaq kernel: [77822.037625]  [blkdev_open+0x0/0x90] blkdev_open+0x0/0x90
Oct 14 11:02:42 jaq kernel: [77822.037627]  [blkdev_open+0x3c/0x90] blkdev_open+0x3c/0x90
Oct 14 11:02:42 jaq kernel: [77822.037633]  [__dentry_open+0xdb/0x200] __dentry_open+0xdb/0x200
Oct 14 11:02:42 jaq kernel: [77822.037638]  [do_filp_open+0x3a/0x50] do_filp_open+0x3a/0x50
Oct 14 11:02:42 jaq kernel: [77822.037645]  [get_unused_fd_flags+0x77/0x120] get_unused_fd_flags+0x77/0x120
Oct 14 11:02:42 jaq kernel: [77822.037650]  [do_sys_open+0x5a/0xf0] do_sys_open+0x5a/0xf0
Oct 14 11:02:42 jaq kernel: [77822.037655]  [system_call+0x7e/0x83] system_call+0x7e/0x83
Oct 14 11:02:42 jaq kernel: [77822.037662] 
Oct 14 11:02:42 jaq kernel: [77822.037668] BUG: soft lockup - CPU#14 stuck for 11s! [hald-addon-stor:8198]
Oct 14 11:02:42 jaq kernel: [77822.120745] CPU 14:
Oct 14 11:02:42 jaq kernel: [77822.120747] Modules linked in: des_generic cbc blkcipher binfmt_misc nfsd exportfs autofs4 rpcsec_gss_krb5 auth_rpcgss iptable_filter ip_tables x_tables xfs ipv6 ac nfs lockd nfs_acl sunrpc parport_pc lp parport loop joydev jedec_probe cfi_probe gen_probe mtd i2c_nforce2 chipreg pcspkr serio_raw map_funcs evdev button psmouse k8temp i2c_core shpchp pci_hotplug ext3 jbd mbcache sg sr_mod cdrom pata_amd pata_acpi sd_mod usb_storage libusual usbhid hid mptsas mptscsih mptbase ata_generic qla2xxx(F) scsi_transport_fc ehci_hcd scsi_transport_sas ohci_hcd libata scsi_tgt e1000 scsi_mod usbcore thermal processor fan fuse vesafb fbcon tileblit font bitblit softcursor

... and so on, and so on.

uname -a:
Linux jaq 2.6.24-19-server #1 SMP Wed Aug 20 18:43:06 UTC 2008 x86_64 GNU/Linux

Well, I think this is a critical bug. Upgrading to Intrepid is not an option, it would render a LTS release meaningless.