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Bug#496188: usbserial doesn't work anymore



maximilian attems a écrit :
On Sun, 31 Aug 2008, Daniel Huhardeaux wrote:

Hi Mert,

the 2.6.26-4 openvz amd64 version was updated 30/08/08 and still the same. Juste have to send the pin code like

echo 'at+cpin=****' >/dev/ttyUSB0

and get the mess :-( Here is the output

[  949.048786] Call Trace:
[  949.048786]  <IRQ>  [<ffffffff80234cb4>] warn_on_slowpath+0x51/0x7a
[  949.048786]  [<ffffffff802926b3>] dma_pool_alloc+0x1c4/0x1d9
[ 949.048786] [<ffffffffa001e983>] :uhci_hcd:uhci_submit_common+0x235/0x2d5
[  949.048786]  [<ffffffffa001e714>] :uhci_hcd:uhci_alloc_td+0x17/0x51
[  949.048786]  [<ffffffffa06852f5>] :usbserial:serial_write_room+0x4b/0x60
[  949.048786]  [<ffffffff8035ddaf>] opost+0x12/0x1b7
[  949.048786]  [<ffffffff8035f150>] n_tty_receive_buf+0x993/0xd88
[  949.048786]  [<ffffffff8022abc3>] enqueue_entity+0x68/0x8a
[  949.048786]  [<ffffffff802287c0>] enqueue_task+0x56/0x61
[  949.048786]  [<ffffffff80229989>] activate_task+0x82/0xc6
[  949.048786]  [<ffffffff8035a2a5>] flush_to_ldisc+0xf1/0x190
[  949.048786]  [<ffffffffa068f2ed>] :option:option_indat_callback+0x4c/0x8f
[  949.048786]  [<ffffffff80382dc4>] usb_hcd_giveback_urb+0x76/0xa4
[  949.048786]  [<ffffffffa001d98a>] :uhci_hcd:uhci_giveback_urb+0xfc/0x17f
[ 949.048786] [<ffffffffa001e033>] :uhci_hcd:uhci_scan_schedule+0x51c/0x79a
[  949.048786]  [<ffffffffa001fea8>] :uhci_hcd:uhci_irq+0x123/0x136
[  949.048786]  [<ffffffff803830c2>] usb_hcd_irq+0x3b/0x78
[  949.048786]  [<ffffffff8026faaf>] handle_IRQ_event+0x2c/0x61
[  949.048786]  [<ffffffff80270f46>] handle_fasteoi_irq+0x90/0xc8
[  949.048786]  [<ffffffff8020f724>] do_IRQ+0x6d/0xd9
[  949.048786]  [<ffffffff8020c55d>] ret_from_intr+0x0/0x19
[ 949.048786] <EOI> [<ffffffffa000c26d>] :processor:acpi_idle_enter_bm+0x2b3/0x327
[  949.048786]  [<ffffffff8039e498>] cpuidle_idle_call+0x7a/0xb2
[  949.048786]  [<ffffffff8039e41e>] cpuidle_idle_call+0x0/0xb2
[  949.048786]  [<ffffffff8020ad2b>] cpu_idle+0x89/0xb3

Thanks for your help

i assume non openvz amd64 kernels work?
No. Output from

dh@listryx:~$ uname -a
Linux listryx 2.6.26-1-amd64 #1 SMP Thu Aug 28 11:13:42 UTC 2008 x86_64 GNU/Linux


[  352.371443] ------------[ cut here ]------------
[ 352.371443] WARNING: at drivers/usb/serial/usb-serial.c:320 serial_write_room+0x4b/0x60 [usbserial]() [ 352.371443] Modules linked in: option usbserial usb_storage i915 drm binfmt_misc rfcomm hidp l2cap ppdev lp parport tun snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus cpufreq_stats cpufreq_ondemand cpufreq_powersave cpufreq_conservative cpufreq_userspace nfsd auth_rpcgss exportfs nfs lockd nfs_acl sunrpc ipv6 isofs zlib_inflate udf crc_itu_t ext3 jbd mbcache nls_utf8 nls_cp437 vfat fat nls_base kvm_intel kvm snd_seq snd_seq_device acpi_cpufreq freq_table sbp2 loop arc4 ecb crypto_blkcipher joydev iwl3945 mac80211 serio_raw hci_usb iTCO_wdt pcspkr battery led_class intelfb video output psmouse i2c_i801 button bluetooth wmi ac cfg80211 rng_core i2c_algo_bit i2c_core snd_hda_intel intel_agp snd_pcm snd_timer snd soundcore snd_page_alloc evdev dcdbas xfs dm_mirror dm_log dm_snapshot dm_mod usbhid hid ff_memless sg sr_mod cdrom sd_mod ata_generic ata_piix libata scsi_mod b44 dock sdhci mmc_core ohci1394 ieee1394 ssb pcmcia pcmcia_core firmware_class mii ide_pci_generic ide_core ehci_hcd uhci_hcd thermal processor fan thermal_sys
[  352.371443] Pid: 4661, comm: Xorg Tainted: G        W 2.6.26-1-amd64 #1
[  352.371443]
[  352.371443] Call Trace:
[  352.371443]  <IRQ>  [<ffffffff80234878>] warn_on_slowpath+0x51/0x7a
[  352.371443]  [<ffffffff80248bba>] ktime_get_ts+0x22/0x4b
[  352.371443]  [<ffffffff8028d08b>] dma_pool_alloc+0x1c4/0x1d9
[  352.371443]  [<ffffffff8022904d>] hrtick_start_fair+0xfb/0x144
[  352.371443]  [<ffffffff8024aab6>] getnstimeofday+0x39/0x98
[  352.371443]  [<ffffffffa001e714>] :uhci_hcd:uhci_alloc_td+0x17/0x51
[  352.371443]  [<ffffffff802124b2>] nommu_map_single+0x0/0x4a
[  352.371443]  [<ffffffffa06272f5>] :usbserial:serial_write_room+0x4b/0x60
[  352.371443]  [<ffffffff80369a87>] opost+0x12/0x1b7
[  352.371443]  [<ffffffff8036ae28>] n_tty_receive_buf+0x993/0xd88
[  352.371443]  [<ffffffff80248bef>] ktime_get+0xc/0x41
[  352.371443]  [<ffffffff8022904d>] hrtick_start_fair+0xfb/0x144
[  352.371443]  [<ffffffff802318fa>] check_preempt_wakeup+0xbd/0xe9
[  352.371443]  [<ffffffff8036635b>] flush_to_ldisc+0xf1/0x190
[  352.371443]  [<ffffffffa06312ed>] :option:option_indat_callback+0x4c/0x8f
[  352.371443]  [<ffffffff8038e4b8>] usb_hcd_giveback_urb+0x76/0xa4
[  352.371443]  [<ffffffffa001d98a>] :uhci_hcd:uhci_giveback_urb+0xfc/0x17f
[ 352.371443] [<ffffffffa001e033>] :uhci_hcd:uhci_scan_schedule+0x51c/0x79a
[  352.371443]  [<ffffffffa001fea8>] :uhci_hcd:uhci_irq+0x123/0x136
[  352.371443]  [<ffffffff8038e7b6>] usb_hcd_irq+0x3b/0x78
[  352.371443]  [<ffffffff8026baa3>] handle_IRQ_event+0x2c/0x61
[  352.371443]  [<ffffffff8026cf3a>] handle_fasteoi_irq+0x90/0xc8
[  352.371443]  [<ffffffff8020f590>] do_IRQ+0x6d/0xd9
[  352.371443]  [<ffffffff8020c43d>] ret_from_intr+0x0/0x19
[  352.371443]  <EOI>
[  352.371443] ---[ end trace e30fbc135afa5bf9 ]---

--
Daniel





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