From: Greg KH <greg@kroah.com>
To: "Barry K. Nathan" <barryn@pobox.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH/RFC] 2.5.42 partial fix for older pl2303
Date: Mon, 14 Oct 2002 22:52:11 -0700 [thread overview]
Message-ID: <20021015055211.GA11524@kroah.com> (raw)
In-Reply-To: <20021014041756.GD17162@ip68-4-86-174.oc.oc.cox.net>
On Sun, Oct 13, 2002 at 09:17:56PM -0700, Barry K. Nathan wrote:
>
> followed by tons of these oopses (I think it's one per LCP echo
> request/reply pair on my PPP connection but I'm not sure):
>
> Debug: sleeping function called from illegal context at
> include/asm/semaphore.h:119
> Call Trace:
> [<c02095f7>] serial_write+0x77/0x170
> [<c01da4e8>] ppp_async_push+0x138/0x1c0
> [<c01da3a5>] ppp_async_send+0x45/0x50
> [<c01d674e>] ppp_channel_push+0x7e/0x1a0
> [<c01d548d>] ppp_write+0xfd/0x130
> [<c013d67d>] vfs_write+0xcd/0x140
> [<c013d78c>] sys_write+0x3c/0x60
> [<c01075cb>] syscall_call+0x7/0xb
Heh, I didn't think that serial_write() would sleep, but I know the
pl2303 driver could have this problem. But it's just a warning, I know
the usb-serial drivers have some issues regarding PPP. Check the lkml
archives for a discussion about this only a week or so ago.
> Under 2.4.20-pre10 + my 2.4 fix, the device always gets ttyUSB0, and
> always works there.
Glad this is working.
thanks,
greg k-h
next prev parent reply other threads:[~2002-10-15 5:46 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-09 23:36 [BUG] pl2303 oops in 2.4.20-pre10 (and 2.5 too) Barry K. Nathan
2002-10-09 23:53 ` Greg KH
2002-10-11 2:39 ` Barry K. Nathan
[not found] ` <20021011170623.GB4123@kroah.com>
2002-10-12 6:30 ` Barry K. Nathan
2002-10-12 20:56 ` Barry K. Nathan
2002-10-13 0:42 ` [PATCH] 2.4.20-pre10: make PL-2303 hack work again Barry K. Nathan
2002-10-13 1:16 ` Greg KH
2002-10-13 1:54 ` Barry K. Nathan
2002-10-13 4:30 ` [PATCH/RFC] 2.5.42 partial fix for older pl2303 Barry K. Nathan
2002-10-13 20:25 ` Greg KH
2002-10-14 2:49 ` Barry K. Nathan
2002-10-14 4:17 ` Barry K. Nathan
2002-10-15 5:52 ` Greg KH [this message]
2002-10-13 0:49 ` [BUG] pl2303 oops in 2.4.20-pre10 (and 2.5 too) Greg KH
2002-10-13 1:26 ` Barry K. Nathan
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