linux-kernel - OOPS when swsusp/resume when connected to the internet via BT and GPRS

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Date:	Mon, 7 May 2007 00:05:33 +0200
From:	CIJOML <cijoml@...ny.cz>
To:	linux-kernel@...r.kernel.org, marcel@...tmann.de,
	bluez-users@...ts.sourceforge.net
Subject: OOPS when swsusp/resume when connected to the internet via BT and GPRS

Hi all,

today I experienced OOPS when connected via BT/GPRS to the internet, then 
swsup and resumed with dongle in HID proxy mode. Please see details in dmesg 
log:

Restarting tasks ... <6>usb 3-1: USB disconnect, address 3
done.
BUG: unable to handle kernel NULL pointer dereference at virtual address 
00000008
 printing eip:
c018db5d
*pde = 00000000
Oops: 0000 [#1]
PREEMPT
Modules linked in: ppp_deflate zlib_deflate bsd_comp ppp_async ppp_generic 
slhc usbhid nls_iso8859_1 nls_cp437 vfat fat sg
sr_mod sd_mod usb_storage bnep rfcomm hidp l2cap lp fuse eeprom hci_usb 
bluetooth 8250_pci 8250 serial_core snd_intel8x0 sn
d_intel8x0m snd_ac97_codec wlan_scan_sta ac97_bus ath_rate_sample nsc_ircc 
snd_pcm ide_cd ath_pci wlan ath_hal(P) 8139too m
ii snd_timer snd irda ehci_hcd psmouse pcspkr i2c_i801 iTCO_wdt 
iTCO_vendor_support rtc cdrom parport_pc parport snd_page_a
lloc uhci_hcd crc_ccitt
CPU:    0
EIP:    0060:[<c018db5d>]    Tainted: P       VLI
EFLAGS: 00010282   (2.6.21 #3)
EIP is at sysfs_move_dir+0x3e/0x117
eax: 00000000   ebx: efd7df40   ecx: f79a1e7c   edx: c1b88940
esi: c1b91e28   edi: 00000000   ebp: c1b88940   esp: f79a1e50
ds: 007b   es: 007b   fs: 00d8  gs: 0033  ss: 0068
Process pppd (pid: 6550, ti=f79a0000 task=f29d6ab0 task.ti=f79a0000)
Stack: c03475a4 f7f86e68 00000000 fffffff4 efd7df40 f7f86e68 fffffff4 c1b88940
       c01d27ec f12a5240 c0347596 efd7df40 f12a5240 f12a5240 00000000 00000000
       f7f86e00 00000000 c1b88940 c023c984 f7f86e68 f7f36640 ef67b000 00000000
Call Trace:
 [<c01d27ec>] kobject_move+0xaf/0xfa
 [<c023c984>] device_move+0x49/0xd7
 [<fcb54bb3>] rfcomm_tty_close+0x23/0x7a [rfcomm]
 [<c021957a>] release_dev+0x1df/0x5e7
 [<c01b8eb9>] inode_has_perm+0x66/0x6e
 [<c0166469>] __posix_lock_file_conf+0x44e/0x48b
 [<c01b8f4a>] file_has_perm+0x89/0x91
 [<c0219991>] tty_release+0xf/0x18
 [<c015a3c7>] __fput+0x96/0x15e
 [<c0157fba>] filp_close+0x51/0x58
 [<c0158f65>] sys_close+0x75/0xbf
 [<c0103cd8>] syscall_call+0x7/0xb
 =======================
Code: 40 30 eb 0b a1 a0 79 42 c0 8b 40 14 8b 40 38 89 44 24 08 85 d2 74 05 8b 
72 30 eb 0b a1 a0 79 42 c0 8b 40 14 8b 70 38
8b 7c 24 08 <8b> 47 08 31 ff 3b 46 08 0f 84 c1 00 00 00 8b 54 24 08 8b 42 08
EIP: [<c018db5d>] sysfs_move_dir+0x3e/0x117 SS:ESP 0068:f79a1e50

Thanks for fixing this issue

Michal
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