Public bug reported:
Im using karmic koala with kernel 2.6.31-4.23 , i cant connect using my
ppd. but if i using kernel 2.6.31-3.19 its working out of the box.
here are details from syslog:
Jul 25 20:59:35 thinkbuntu pppd[5596]: pppd 2.4.5 started by root, uid 0
Jul 25 21:00:05 thinkbuntu kernel: [ 252.730993] BUG: unable to handle kernel
NULL pointer dereference at 00000014
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731007] IP: [<f995e5a2>]
serial_ioctl+0x22/0xa0 [usbserial]
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731028] *pde = be315067
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731035] Oops: 0000 [#1] SMP
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731044] last sysfs file:
/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/ieee80211/phy0/rfkill1/state
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731052] Modules linked in: option
usbserial aes_i586 aes_generic binfmt_misc ppdev bridge stp bnep nfsd lockd
nfs_acl auth_rpcgss sunrpc exportfs vboxnetflt vboxdrv tun input_polldev
tp_smapi thinkpad_ec uinput sbp2 lp parport snd_hda_codec_analog iptable_nat
nf_nat nf_conntrack_ipv4 arc4 nf_conntrack ecb nf_defrag_ipv4 snd_hda_intel
iptable_mangle snd_hda_codec iptable_filter ip_tables iwlagn snd_pcm_oss
iwlcore x_tables snd_mixer_oss pcmcia joydev yenta_socket sdhci_pci ricoh_mmc
snd_pcm rsrc_nonstatic sdhci pcmcia_core snd_timer mac80211 snd soundcore
snd_page_alloc cfg80211 psmouse thinkpad_acpi serio_raw usb_storage led_class
pcspkr nvram ohci1394 ieee1394 usbhid e1000e dm_raid45 xor fbcon tileblit font
bitblit softcursor i915 drm i2c_algo_bit video output intel_agp agpgart
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731225]
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731233] Pid: 5596, comm: pppd Not
tainted (2.6.31-4-generic #22-Ubuntu) 6464AP3
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731240] EIP: 0060:[<f995e5a2>] EFLAGS:
00010246 CPU: 0
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731253] EIP is at
serial_ioctl+0x22/0xa0 [usbserial]
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731259] EAX: 00000000 EBX: f42c3800
ECX: 00005401 EDX: f316c000
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731265] ESI: 00000000 EDI: f316c000
EBP: f3191f1c ESP: f3191ef8
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731271] DS: 007b ES: 007b FS: 00d8 GS:
00e0 SS: 0068
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731279] Process pppd (pid: 5596,
ti=f3190000 task=f309b240 task.ti=f3190000)
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731284] Stack:
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731288] 00000000 00000000 00000000
00000000 00000000 00000000 f995e580 f42c3800
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731305] <0> f316c000 f3191f50 c03774f7
bffc46c4 f309b240 f42c3800 bffc46c4 00005401
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731324] <0> f3191f64 00000003 00000000
c0377480 c05984e0 bffc46c4 f3191f70 c01ee1cc
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731344] Call Trace:
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731360] [<f995e580>] ?
serial_ioctl+0x0/0xa0 [usbserial]
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731374] [<c03774f7>] ?
tty_ioctl+0x77/0x620
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731384] [<c0377480>] ?
tty_ioctl+0x0/0x620
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731394] [<c01ee1cc>] ?
vfs_ioctl+0x1c/0x90
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731404] [<c01e9766>] ?
putname+0x26/0x40
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731412] [<c01ee4f1>] ?
do_vfs_ioctl+0x71/0x310
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731422] [<c0102771>] ?
restore_sigcontext+0xc1/0xe0
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731430] [<c01ee7ef>] ?
sys_ioctl+0x5f/0x80
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731439] [<c010334c>] ?
syscall_call+0x7/0xb
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731444] Code: ac 90 8d b4 26 00 00 00
00 55 89 e5 83 ec 24 89 5d f4 89 c3 89 7d fc 89 d7 89 75 f8 8b b0 3c 01 00 00
a1 24 68 96 f9 85 c0 75 34 <8b> 56 14 85 d2 74 5d 8b 06 8b 40 04 8b b0 8c 00 00
00 b8 fd fd
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731552] EIP: [<f995e5a2>]
serial_ioctl+0x22/0xa0 [usbserial] SS:ESP 0068:f3191ef8
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731571] CR2: 0000000000000014
Jul 25 21:00:05 thinkbuntu kernel: [ 252.731578] ---[ end trace
f6f19f3e32ed8842 ]---
same thing happen if using kppp @ gnome-ppp
** Affects: ubuntu
Importance: Undecided
Status: New
--
ppp crash
https://bugs.launchpad.net/bugs/408204
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