2.6.20-git6 usbserial crashes

Got this while playing around with a toy.

I have multiple usb serial devices of different types.

-Andi

usb 5-2: USB disconnect, address 4
Unable to handle kernel NULL pointer dereference at 0000000000000020 RIP: 
 [<ffffffff804e2af5>] klist_del+0xa/0x46
PGD 79cb4067 PUD 79cb7067 PMD 0 
Oops: 0000 [1] SMP 
CPU 0 
Modules linked in: visor deflate zlib_deflate zlib_inflate cbc blkcipher sha256 
aes_x86_64 des md5 sha1 xfrm_user xfrm4_tunnel tunnel4 ipcomp esp4 ah4 af_key pp
poe pppox ipt_MASQUERADE ppp_generic slhc iptable_nat snd_pcm_oss nf_nat_sip nf_
conntrack_sip nf_nat_ftp snd_mixer_oss nf_nat_irc nf_nat snd_seq i2c_isa snd_seq
_device ip6t_LOG ip6t_REJECT ip6table_filter ip6_tables xt_tcpudp nf_conntrack_i
pv4 xt_state nf_conntrack_ftp nf_conntrack_irc nf_conntrack ipt_LOG ipt_REJECT i
ptable_filter ip_tables x_tables snd_hda_intel snd_hda_codec snd_pcm snd_timer s
nd snd_page_alloc pl2303 usbserial i2c_i801 i2c_core
Pid: 160, comm: khubd Not tainted 2.6.20-git6-BASIL #119
RIP: 0010:[<ffffffff804e2af5>]  [<ffffffff804e2af5>] klist_del+0xa/0x46
RSP: 0018:ffff81007fe6bc40  EFLAGS: 00010282
RAX: ffff81007eb70c00 RBX: 0000000000000000 RCX: 0000000000000002
RDX: ffff81000e9b1858 RSI: ffffffff8800ba33 RDI: ffff81007eb70d18
RBP: ffff81007eb70cf0 R08: ffff81007fe6bd40 R09: ffff810046941490
R10: ffff81007e494020 R11: ffffffff8029f29f R12: ffff81007eb70d18
R13: ffff81007e494020 R14: ffff81007e494020 R15: ffff81007f642800
FS:  0000000000000000(0000) GS:ffffffff80675000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000020 CR3: 0000000079cb1000 CR4: 00000000000006e0
Process khubd (pid: 160, threadinfo ffff81007fe6a000, task ffff81007ee1d660)
Stack:  ffff81007eb70cf0 ffff81007eb70cf0 ffff81000e9b1840 ffffffff803858c6
 ffff81000e9b1848 ffff81007eb70cf0 ffff81000e9b1840 ffff81000e9b1840
 0000000000000000 ffffffff80385aaf 0000000000000002 ffffffff8800bacb
Call Trace:
 [<ffffffff803858c6>] device_del+0x22/0x202
 [<ffffffff80385aaf>] device_unregister+0x9/0x12
 [<ffffffff8800bacb>] :usbserial:destroy_serial+0x98/0xef
 [<ffffffff8800ba33>] :usbserial:destroy_serial+0x0/0xef
 [<ffffffff80330fbc>] kref_put+0x5d/0x68
 [<ffffffff8800b938>] :usbserial:usb_serial_disconnect+0x8c/0xb4
 [<ffffffff80410c76>] usb_unbind_interface+0x59/0xa6
 [<ffffffff80387be6>] __device_release_driver+0x8e/0xb0
 [<ffffffff8038806a>] device_release_driver+0x31/0x49
 [<ffffffff80387558>] bus_remove_device+0x89/0x9c
 [<ffffffff80385a35>] device_del+0x191/0x202
 [<ffffffff8040e671>] usb_disable_device+0x6c/0xdf
 [<ffffffff8040b113>] usb_disconnect+0xa3/0x145
 [<ffffffff8040bf31>] hub_thread+0x3f7/0xbb7
 [<ffffffff8023aaf3>] autoremove_wake_function+0x0/0x2e
 [<ffffffff8040bb3a>] hub_thread+0x0/0xbb7
 [<ffffffff8023a776>] keventd_create_kthread+0x0/0x65
 [<ffffffff8023a9cc>] kthread+0xd1/0x101
 [<ffffffff8020a038>] child_rip+0xa/0x12
 [<ffffffff8023a776>] keventd_create_kthread+0x0/0x65
 [<ffffffff8023a8fb>] kthread+0x0/0x101
 [<ffffffff8020a02e>] child_rip+0x0/0x12
RIP  [<ffffffff804e2af5>] klist_del+0xa/0x46
 RSP <ffff81007fe6bc40>
CR2: 0000000000000020

-Andi

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier.
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
[email protected]
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel