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Message-ID: <87ws7by73h.wl%vmayatsk@redhat.com> Date: Wed, 17 Jun 2009 03:36:18 +0200 From: Vitaly Mayatskikh <v.mayatskih@...il.com> To: Greg KH <greg@...ah.com> Cc: Vitaly Mayatskikh <v.mayatskih@...il.com>, linux-kernel@...r.kernel.org Subject: Re: [PATCH] Fix OOPS in pl2303 At Tue, 16 Jun 2009 11:26:04 -0700, Greg KH wrote: > What kernel version are you seeing this problem on? And what version is > this patch for? I've seen it on 2.6.29.4-167.fc11.x86_64, patch is for git with head at 03347e2592078a90df818670fddf97a33eec70fb. Trace log: Jun 15 16:33:49 localhost kernel: hub 4-0:1.0: port 1 disabled by hub (EMI?), re-enabling... Jun 15 16:33:49 localhost kernel: usb 4-1: USB disconnect, address 2 Jun 15 16:33:49 localhost pppd[2123]: Modem hangup Jun 15 16:33:49 localhost pppd[2123]: Connect time 9.9 minutes. Jun 15 16:33:49 localhost pppd[2123]: Sent 152530 bytes, received 326864 bytes. Jun 15 16:33:49 localhost kernel: pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0 Jun 15 16:33:49 localhost kernel: pl2303 4-1:1.0: device disconnected Jun 15 16:33:49 localhost pppd[2123]: Connection terminated. Jun 15 16:33:49 localhost kernel: BUG: unable to handle kernel NULL pointer dereference at (null) Jun 15 16:33:49 localhost kernel: IP: [<ffffffff8102a039>] __ticket_spin_lock+0x9/0x1a Jun 15 16:33:49 localhost kernel: PGD 0 Jun 15 16:33:49 localhost kernel: Oops: 0002 [#1] SMP Jun 15 16:33:49 localhost kernel: last sysfs file: /sys/devices/virtual/net/ppp0/statistics/tx_bytes Jun 15 16:33:49 localhost kernel: CPU 1 Jun 15 16:33:49 localhost kernel: Modules linked in: ppp_deflate zlib_deflate ppp_async crc_ccitt ppp_generic slhc pl2303 usbserial ipt_MASQUERADE iptable_nat nf_nat bridge stp llc sunrpc ipv6 cpufreq_ondemand acpi_cpufreq freq_table dm_multipath kvm_intel kvm snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device arc4 snd_pcm_oss ecb snd_mixer_oss snd_pcm thinkpad_acpi firewire_ohci sdhci_pci iwl3945 snd_timer hwmon firewire_core sdhci yenta_socket mmc_core pcspkr mac80211 ricoh_mmc snd crc_itu_t rsrc_nonstatic e1000e i2c_i801 joydev lib80211 iTCO_wdt wmi soundcore iTCO_vendor_support cfg80211 snd_page_alloc i915 drm i2c_algo_bit i2c_core video output [last unloaded: microcode] Jun 15 16:33:49 localhost kernel: Pid: 2123, comm: pppd Not tainted 2.6.29.4-167.fc11.x86_64 #1 6464CTO Jun 15 16:33:49 localhost kernel: RIP: 0010:[<ffffffff8102a039>] [<ffffffff8102a039>] __ticket_spin_lock+0x9/0x1a Jun 15 16:33:49 localhost kernel: RSP: 0018:ffff8801228a5cb8 EFLAGS: 00010046 Jun 15 16:33:49 localhost kernel: RAX: 0000000000000100 RBX: 0000000000000000 RCX: 0000000000000000 Jun 15 16:33:49 localhost kernel: RDX: ffff88012a988600 RSI: 0000000000000246 RDI: 0000000000000000 Jun 15 16:33:49 localhost kernel: RBP: ffff8801228a5cb8 R08: 0000000000000000 R09: 0000000000000008 Jun 15 16:33:49 localhost kernel: R10: 00007fffbec64070 R11: 0000000000000246 R12: 0000000000000246 Jun 15 16:33:49 localhost kernel: R13: ffff880139898800 R14: ffff88012a9ea480 R15: 0000000000007530 Jun 15 16:33:49 localhost kernel: FS: 00007faab6c026f0(0000) GS:ffff88013acf5280(0000) knlGS:0000000000000000 Jun 15 16:33:49 localhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 15 16:33:49 localhost kernel: CR2: 0000000000000000 CR3: 00000001228c5000 CR4: 00000000000026e0 Jun 15 16:33:49 localhost kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jun 15 16:33:49 localhost kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jun 15 16:33:49 localhost kernel: Process pppd (pid: 2123, threadinfo ffff8801228a4000, task ffff880122838000) Jun 15 16:33:49 localhost kernel: Stack: Jun 15 16:33:49 localhost kernel: ffff8801228a5cc8 ffffffff8102a103 ffff8801228a5ce8 ffffffff813abd6c Jun 15 16:33:49 localhost kernel: 0000000000000000 ffff88013241c000 ffff8801228a5d68 ffffffffa02795e2 Jun 15 16:33:49 localhost kernel: ffff8801228a5da8 ffffffff811826c5 ffff8801228a5d28 ffffffff813abc50 Jun 15 16:33:49 localhost kernel: Call Trace: Jun 15 16:33:49 localhost kernel: [<ffffffff8102a103>] default_spin_lock_flags+0x9/0xe Jun 15 16:33:49 localhost kernel: [<ffffffff813abd6c>] _spin_lock_irqsave+0x32/0x3b Jun 15 16:33:49 localhost kernel: [<ffffffffa02795e2>] pl2303_close+0x5d/0x205 [pl2303] Jun 15 16:33:49 localhost kernel: [<ffffffff811826c5>] ? avc_has_perm_noaudit+0x262/0x3f8 Jun 15 16:33:49 localhost kernel: [<ffffffff813abc50>] ? _write_lock_irq+0x1e/0x32 Jun 15 16:33:49 localhost kernel: [<ffffffffa0333ccf>] serial_close+0x9d/0x156 [usbserial] Jun 15 16:33:49 localhost kernel: [<ffffffff8122c2a6>] tty_release_dev+0x198/0x49a Jun 15 16:33:49 localhost kernel: [<ffffffff811842bd>] ? inode_has_perm+0x64/0x66 Jun 15 16:33:49 localhost kernel: [<ffffffff81103077>] ? locks_free_lock+0x4f/0x53 Jun 15 16:33:49 localhost kernel: [<ffffffff8122c5c6>] tty_release+0x1e/0x29 Jun 15 16:33:49 localhost kernel: [<ffffffff810d61c4>] __fput+0xf9/0x1a0 Jun 15 16:33:49 localhost kernel: [<ffffffff810d6285>] fput+0x1a/0x1c Jun 15 16:33:49 localhost kernel: [<ffffffff810d35c5>] filp_close+0x68/0x72 Jun 15 16:33:49 localhost kernel: [<ffffffff810d367b>] sys_close+0xac/0xea Jun 15 16:33:49 localhost kernel: [<ffffffff8101133a>] system_call_fastpath+0x16/0x1b Jun 15 16:33:49 localhost kernel: Code: 9e 02 81 44 89 c6 48 89 c7 e8 0a fb ff ff eb 0f 0f b7 f6 40 0f b6 ff 48 89 c2 e8 1c fb ff ff c9 c3 90 55 b8 00 01 00 00 48 89 e5 <f0> 66 0f c1 07 38 e0 74 06 f3 90 8a 07 eb f6 c9 c3 55 48 89 e5 Jun 15 16:33:49 localhost kernel: RIP [<ffffffff8102a039>] __ticket_spin_lock+0x9/0x1a Jun 15 16:33:49 localhost kernel: RSP <ffff8801228a5cb8> Jun 15 16:33:49 localhost kernel: CR2: 0000000000000000 Jun 15 16:33:49 localhost kernel: ---[ end trace 53ccdfc91f7d0819 ]--- Jun 15 16:33:49 localhost kernel: usb 4-1: new full speed USB device using uhci_hcd and address 3 Jun 15 16:33:49 localhost kernel: usb 4-1: New USB device found, idVendor=067b, idProduct=2303 Jun 15 16:33:49 localhost kernel: usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Jun 15 16:33:49 localhost kernel: usb 4-1: Product: USB-Serial Controller Jun 15 16:33:49 localhost kernel: usb 4-1: Manufacturer: Prolific Technology Inc. Jun 15 16:33:49 localhost kernel: usb 4-1: configuration #1 chosen from 1 choice Jun 15 16:33:49 localhost kernel: pl2303 4-1:1.0: pl2303 converter detected Jun 15 16:33:49 localhost kernel: usb 4-1: pl2303 converter now attached to ttyUSB1 -- wbr, Vitaly -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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