[hsflinux] HSF modem driver corrupts system

[Linuxant support (Jonathan)]

Hi,

this time the crash doesn't mention the HSF driver code, so it will be 
easier to debug if you want to try it.

At this point, you should try to determine what kind of problem it is. 
Is it related to the kernel or configuration you are using or this is an 
issue that will happen no matter what kernel is being used?

The easiest way to figure that out would be to use a Linux distribution 
we officially support and try the driver with it on the same hardware 
you are currently using. We do release pre-compiled packages for the 
distributions we officially support.

The configuration file will be useful when the precise source of the 
problem will be found.

Regards,


Jonathan
Technical specialist / Linuxant
www.linuxant.com
support at linuxant.com



Tom wrote:
> --- On Tue, 3/10/09, Linuxant support (Jonathan) <support at linuxant.com> wrote:
> 
>> thank you for this information.
>> "CONFIG_PREEMPT=y" is well supported but it is
>> possible that the lack of
>> "CONFIG_PREEMPT_VOLUNTARY=y" could be fatal to the
>> driver. If this something that could be improved in the
>> future.
> 
> I spoke too soon. It didn't crash for three or four times
> after the disconnect, but then just a few hours ago:
> 
> Mar 10 21:36:50 irascible pppd[15913]: Connection terminated.
> Mar 10 21:36:50 system ------------[ cut here ]------------
> Mar 10 21:36:50 system kernel BUG at drivers/char/tty_ldisc.c:199!
> Mar 10 21:36:50 system invalid opcode: 0000 [#1]
> Mar 10 21:36:50 system Modules linked in: hsfusbcd2 hsfmc97sis hsfmc97ati hsfmc97ali hsfmc97via hsfmc97ich hsfpcibasic3 hs
> fpcibasic2 hsfserial hsfengine(P) hsfosspec hsfsoar [last unloaded: hsfosspec]
> Mar 10 21:36:50 system
> Mar 10 21:36:50 system Pid: 15913, comm: pppd Tainted: P          (2.6.27-gentoo-r8 #1)
> Mar 10 21:36:50 system EIP: 0060:[<c01e23db>] EFLAGS: 00010046 CPU: 0
> Mar 10 21:36:50 system EIP is at tty_ldisc_put+0x1e/0x32
> Mar 10 21:36:50 system EAX: 00000000 EBX: 00000283 ECX: f8858840 EDX: c046ea80
> Mar 10 21:36:50 system ESI: ee920000 EDI: 00000000 EBP: 00000000 ESP: ee957ec4
> Mar 10 21:36:50 system DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
> Mar 10 21:36:50 system Process pppd (pid: 15913, ti=ee956000 task=ee9a46c0 task.ti=ee956000)
> Mar 10 21:36:50 system Stack: ee957f14 c01e28c7 00000000 00000000 c018ec0b 00000000 c024d20c 00000001
> Mar 10 21:36:50 system ee9200d0 00000246 ee920000 00000002 00000000 c0113ee7 00000000 00000246
> Mar 10 21:36:50 system ee920010 c01dd581 00000000 7fffffff 00000000 ee9a46c0 c01232e0 ee957f20
> Mar 10 21:36:50 system Call Trace:
> Mar 10 21:36:50 system [<c01e28c7>] tty_set_ldisc+0x2d5/0x326
> Mar 10 21:36:50 system [<c018ec0b>] journal_dirty_metadata+0x7c/0x82
> Mar 10 21:36:50 system [<c024d20c>] ppp_async_ioctl+0x8e/0x164
> Mar 10 21:36:50 system [<c0113ee7>] __wake_up+0xf/0x15
> Mar 10 21:36:50 system [<c01dd581>] tty_wakeup+0x40/0x44
> Mar 10 21:36:50 system [<c01232e0>] autoremove_wake_function+0x0/0x2d
> Mar 10 21:36:50 system [<c01df874>] tty_ioctl+0x45b/0x5ed
> Mar 10 21:36:50 system [<c01df419>] tty_ioctl+0x0/0x5ed
> Mar 10 21:36:50 system [<c015850e>] vfs_ioctl+0x16/0x48
> Mar 10 21:36:50 system [<c015871e>] do_vfs_ioctl+0x1de/0x1f1
> Mar 10 21:36:50 system [<c010eade>] do_page_fault+0x228/0x536
> Mar 10 21:36:50 system [<c015875d>] sys_ioctl+0x2c/0x43
> Mar 10 21:36:50 system [<c01029d9>] sysenter_do_call+0x12/0x25
> Mar 10 21:36:50 system =======================
> Mar 10 21:36:50 system Code: 58 5a 89 f2 89 d8 5b 5e eb 91 5b 5e c3 53 8b 40 08 83 f8 11 76 04 0f 0b eb fe 9c 5b fa 8b 14
> 85 c0 0e 4f c0 8b 42 48 85 c0 75 04 <0f> 0b eb fe 48 89 42 48 8b 42 44 e8 46 ae f4 ff 53 9d 5b c3 56
> Mar 10 21:36:50 system EIP: [<c01e23db>] tty_ldisc_put+0x1e/0x32 SS:ESP 0068:ee957ec4
> Mar 10 21:36:50 system ---[ end trace 785bf77333246b46 ]---
> 
> Crashing twenty percent of the time is a lot better than
> crashing a hundred percent of the time (especially since
> I don't use the modem unless, I can't avoid it), but it
> is still a pain to reboot the system, and get everything
> restored.
> 
> My offer to supply my config file or other additional
> information still holds. :)
> 
> Tom
> 
> 
>       
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