* BUG: scheduling while atomic: pptpgw
@ 2009-06-12 22:15 Sergey Senozhatsky
0 siblings, 0 replies; only message in thread
From: Sergey Senozhatsky @ 2009-06-12 22:15 UTC (permalink / raw)
To: Alan Cox; +Cc: linux-kernel, Alan Cox
Hello Alan.
As I can see you've patched tty recently.
---
commit c9b3976e3fec266be25c5001a70aa0a890b6c476
Author: Alan Cox <alan@redhat.com>
Date: Fri Jan 2 13:44:56 2009 +0000
tty: Fix PPP hang under load
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
I have some problems in tty + ppp.
Part of syslog (the rest is in attach):
[ 8506.042498] BUG: scheduling while atomic: pptpgw/3167/0x00000400
[ 8506.042504] Modules linked in: ppp_deflate zlib_deflate ppp_async crc_ccitt ppp_generic slhc ipv6 fuse sbp2 loop snd_hda_codec_si3054 snd_hda_codec_realtek snd_hda_intel
snd_hda_codec snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd soundcore pcspkr i2c_i801 rng_core snd_page_alloc psmouse asus_laptop
serio_raw evdev led_class usbhid hid sg sd_mod sr_mod cdrom ata_generic pata_acpi ata_piix ide_pci_generic ohci1394 ieee1394 r8169 mii uhci_hcd ehci_hcd usbcore
[ 8506.042563]
[ 8506.042568] Pid: 3167, comm: pptpgw Tainted: G W (2.6.30-nv-git3 #7) F3JC
[ 8506.042572] EIP: 0060:[<c13e4386>] EFLAGS: 00200246 CPU: 0
[ 8506.042580] EIP is at _spin_unlock_irqrestore+0x16/0x30
[ 8506.042583] EAX: c1660040 EBX: 00200246 ECX: 00000000 EDX: 00200246
[ 8506.042586] ESI: f66b97e0 EDI: 00000001 EBP: f22ebe5c ESP: f22ebe58
[ 8506.042590] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 8506.042593] CR0: 8005003b CR2: b753c000 CR3: 36a91000 CR4: 000006d0
[ 8506.042596] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 8506.042599] DR6: ffff0ff0 DR7: 00000400
[ 8506.042601] Call Trace:
[ 8506.042609] [<c12b92cb>] tty_ldisc_deref+0x5b/0x90
[ 8506.042615] [<c12b2699>] tty_wakeup+0x79/0x90
[ 8506.042620] [<c12baa23>] pty_unthrottle+0x23/0x50
[ 8506.042624] [<c12b75f0>] tty_unthrottle+0x40/0x70
[ 8506.042628] [<c12b571f>] n_tty_read+0x47f/0x720
[ 8506.042636] [<c103a020>] ? default_wake_function+0x0/0x40
[ 8506.042640] [<c12b0a28>] tty_read+0x98/0xe0
[ 8506.042644] [<c12b52a0>] ? n_tty_read+0x0/0x720
[ 8506.042651] [<c10e5dfb>] vfs_read+0xbb/0x1c0
[ 8506.042655] [<c12b0990>] ? tty_read+0x0/0xe0
[ 8506.042659] [<c10e6008>] sys_read+0x58/0xa0
[ 8506.042665] [<c100320b>] sysenter_do_call+0x12/0x22
Sergey
p.s.
Reported :http://bugzilla.kernel.org/show_bug.cgi?id=13522
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2009-06-12 22:15 BUG: scheduling while atomic: pptpgw Sergey Senozhatsky
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