* Re: [Bugme-new] [Bug 15826] New: WARNING: at fs/proc/generic.c:317 __xlate_proc_name+0xbd/0xe0()
2010-04-26 22:19 ` [Bugme-new] [Bug 15826] New: WARNING: at fs/proc/generic.c:317 __xlate_proc_name+0xbd/0xe0() Andrew Morton
@ 2010-07-08 19:34 ` Boris Cuber
0 siblings, 0 replies; 2+ messages in thread
From: Boris Cuber @ 2010-07-08 19:34 UTC (permalink / raw)
To: Andrew Morton
Cc: Alexey Dobriyan, Mauro Carvalho Chehab, bugzilla-daemon,
bugme-daemon, linux-media, bugzilla.kernel.org
[-- Attachment #1: Type: Text/Plain, Size: 8897 bytes --]
Still present in kernel-2.6.34.1.
The dvb card itself has been installed to another computer,
different os (archlinux instead of gentoo), warning is still there.
[dmesg]...
b2c2-flexcop: B2C2 FlexcopII/II(b)/III digital TV receiver chip loaded
successfully
flexcop-pci: will use the HW PID filter.
flexcop-pci: card revision 2
b2c2_flexcop_pci 0000:00:0b.0: PCI INT A -> GSI 19 (level, low) -> IRQ 19
------------[ cut here ]------------
WARNING: at fs/proc/generic.c:317 __xlate_proc_name+0xb3/0xc0()
Hardware name: System Name
name 'Technisat/B2C2 FlexCop II/IIb/III Digital TV PCI Driver'
Modules linked in: b2c2_flexcop_pci(+) i2c_viapro snd(+) soundcore
b2c2_flexcop dvb_core cx24123 cx24113 via_ircc uhci_hcd s5h1420 button thermal
processor irda crc_ccitt ehci_hcd usbcore via_agp firewire_ohci firewire_core
crc_itu_t shpchp pci_hotplug evdev psmouse via_rhine mii emu10k1_gp gameport
sg serio_raw pcspkr rtc_cmos rtc_core rtc_lib ext4 mbcache jbd2 crc16 sr_mod
cdrom sd_mod pata_via ata_generic pata_acpi floppy libata scsi_mod radeon ttm
drm_kms_helper drm agpgart i2c_algo_bit i2c_core
Pid: 1187, comm: modprobe Not tainted 2.6.34-ARCH #1
Call Trace:
[<c104317d>] warn_slowpath_common+0x6d/0xa0
[<c113b553>] ? __xlate_proc_name+0xb3/0xc0
[<c113b553>] ? __xlate_proc_name+0xb3/0xc0
[<c10431f6>] warn_slowpath_fmt+0x26/0x30
[<c113b553>] __xlate_proc_name+0xb3/0xc0
[<c113b5b9>] __proc_create+0x59/0x100
[<c113bed3>] proc_mkdir_mode+0x23/0x50
[<c113bf0f>] proc_mkdir+0xf/0x20
[<c10986ab>] register_handler_proc+0xeb/0x110
[<c1096a3f>] __setup_irq+0x19f/0x2f0
[<c10e950c>] ? kmem_cache_alloc_notrace+0x7c/0xb0
[<f8ce7140>] ? flexcop_pci_isr+0x0/0x140 [b2c2_flexcop_pci]
[<c1096c6e>] request_threaded_irq+0xde/0x1c0
[<c1027516>] ? ioremap_nocache+0x16/0x20
[<f8ce73e0>] flexcop_pci_probe+0x160/0x2b0 [b2c2_flexcop_pci]
[<c119ad56>] pci_device_probe+0x56/0x80
[<c1215a27>] driver_probe_device+0x77/0x180
[<c1215ba9>] __driver_attach+0x79/0x80
[<c1214c83>] bus_for_each_dev+0x43/0x70
[<c1215779>] driver_attach+0x19/0x20
[<c1215b30>] ? __driver_attach+0x0/0x80
[<c121533d>] bus_add_driver+0xbd/0x2d0
[<c119aca0>] ? pci_device_remove+0x0/0x40
[<c1215da5>] driver_register+0x65/0x110
[<c119af80>] __pci_register_driver+0x40/0xb0
[<f8cf4017>] flexcop_pci_module_init+0x17/0x19 [b2c2_flexcop_pci]
[<c100120d>] do_one_initcall+0x2d/0x190
[<f8cf4000>] ? flexcop_pci_module_init+0x0/0x19 [b2c2_flexcop_pci]
[<c1078fed>] sys_init_module+0xad/0x210
[<c10d8ec9>] ? sys_mmap_pgoff+0x89/0x110
[<c100379f>] sysenter_do_call+0x12/0x28
---[ end trace d65de7b15fba8e1f ]---
DVB: registering new adapter (FlexCop Digital TV device)
b2c2-flexcop: MAC address = 00:d0:d7:0f:30:58
CX24123: cx24123_i2c_readreg: reg=0x0 (error=-121)
CX24123: wrong demod revision: 87
usb 2-2: new low speed USB device using uhci_hcd and address 3
b2c2-flexcop: found 'ST STV0299 DVB-S' .
DVB: registering adapter 0 frontend 0 (ST STV0299 DVB-S)...
b2c2-flexcop: initialization of 'Sky2PC/SkyStar 2 DVB-S rev 2.6' at the 'PCI'
bus controlled by a 'FlexCopIIb' complete
...
[dmesg]
Am Dienstag, 27. April 2010 schrieb Andrew Morton:
> (switched to email. Please respond via emailed reply-to-all, not via the
> bugzilla web interface).
>
> On Wed, 21 Apr 2010 12:21:18 GMT
>
> bugzilla-daemon@bugzilla.kernel.org wrote:
> > https://bugzilla.kernel.org/show_bug.cgi?id=15826
> >
> > Summary: WARNING: at fs/proc/generic.c:317
> >
> > __xlate_proc_name+0xbd/0xe0()
> >
> > Product: v4l-dvb
> > Version: unspecified
> >
> > Kernel Version: 2.6.34-rc5
> >
> > Platform: All
> >
> > OS/Version: Linux
> >
> > Tree: Mainline
> >
> > Status: NEW
> >
> > Severity: normal
> > Priority: P1
> >
> > Component: dvb-core
> >
> > AssignedTo: v4l-dvb_dvb-core@kernel-bugs.osdl.org
> > ReportedBy: bugzilla.kernel.org@boris64.net
> > Regression: No
> >
> > Created an attachment (id=26077)
> >
> > --> (https://bugzilla.kernel.org/attachment.cgi?id=26077)
> >
> > full dmesg
> >
> > I keep getting this warning on boot. It seems to
> > happen when the dvb driver for my "technisat skystar2"
> > card is loaded (correct me if i'm wrong).
> >
> > If you need more infos or debug stuff inside
> > my kernel config, please tell me what i need to include.
> >
> > Thank you in advance.
> >
> > ----------------------------------------
> > ...
> > [ 0.739420] b2c2-flexcop: B2C2 FlexcopII/II(b)/III digital TV receiver
> > chip loaded successfully
> > [ 0.739435] flexcop-pci: will use the HW PID filter.
> > [ 0.739438] flexcop-pci: card revision 2
> > [ 0.739442] b2c2_flexcop_pci 0000:04:01.0: PCI INT A -> GSI 17 (level,
> > low) -> IRQ 17
> > [ 0.739459] ------------[ cut here ]------------
> > [ 0.739463] WARNING: at fs/proc/generic.c:317
> > __xlate_proc_name+0xbd/0xe0()
>
> Alexey, this sucks. A developer goes to the warning site:
>
> static int __xlate_proc_name(const char *name, struct proc_dir_entry **ret,
> const char **residual)
> {
> const char *cp = name, *next;
> struct proc_dir_entry *de;
> int len;
>
> de = *ret;
> if (!de)
> de = &proc_root;
>
> while (1) {
> next = strchr(cp, '/');
> if (!next)
> break;
>
> len = next - cp;
> for (de = de->subdir; de ; de = de->next) {
> if (proc_match(len, cp, de))
> break;
> }
> if (!de) {
> WARN(1, "name '%s'\n", name);
> return -ENOENT;
> }
> cp += len + 1;
> }
> *residual = cp;
> *ret = de;
> return 0;
> }
>
> and there's no hint whatsoever to tell him what the warning means, nor
> how to fix it.
>
> Please send a patch adding a nice comment to __xlate_proc_name(). Then
> perhaps the DVB guys have a chance of fixing this bug.
>
> Thanks.
>
> > [ 0.739465] Hardware name: P5K
> > [ 0.739466] name 'Technisat/B2C2 FlexCop II/IIb/III Digital TV PCI
> > Driver' [ 0.739467] Modules linked in:
> > [ 0.739470] Pid: 1, comm: swapper Not tainted
> > 2.6.34-rc5-v2k11+-dbg-dirty #118
> > [ 0.739471] Call Trace:
> > [ 0.739476] [<ffffffff8103e386>] warn_slowpath_common+0x76/0xb0
> > [ 0.739478] [<ffffffff8103e41c>] warn_slowpath_fmt+0x3c/0x40
> > [ 0.739481] [<ffffffff8110b4ad>] __xlate_proc_name+0xbd/0xe0
> > [ 0.739483] [<ffffffff8110b540>] __proc_create+0x70/0x140
> > [ 0.739486] [<ffffffff8110bf49>] proc_mkdir_mode+0x29/0x60
> > [ 0.739488] [<ffffffff8110bf91>] proc_mkdir+0x11/0x20
> > [ 0.739491] [<ffffffff8107b39b>] register_handler_proc+0x11b/0x140
> > [ 0.739494] [<ffffffff810791f9>] __setup_irq+0x1f9/0x390
> > [ 0.739497] [<ffffffff813ca790>] ? flexcop_pci_isr+0x0/0x3e0
> > [ 0.739500] [<ffffffff810794bc>] request_threaded_irq+0x12c/0x210
> > [ 0.739502] [<ffffffff813cad20>] flexcop_pci_probe+0x1b0/0x350
> > [ 0.739505] [<ffffffff811e4ee5>] pci_device_probe+0x75/0xa0
> > [ 0.739509] [<ffffffff8130522a>] ? driver_sysfs_add+0x5a/0x90
> > [ 0.739511] [<ffffffff813054f3>] driver_probe_device+0x93/0x1a0
> > [ 0.739514] [<ffffffff8130569b>] __driver_attach+0x9b/0xa0
> > [ 0.739517] [<ffffffff81305600>] ? __driver_attach+0x0/0xa0
> > [ 0.739519] [<ffffffff8130460e>] bus_for_each_dev+0x5e/0x90
> > [ 0.739522] [<ffffffff813051c9>] driver_attach+0x19/0x20
> > [ 0.739524] [<ffffffff81304d62>] bus_add_driver+0xb2/0x260
> > [ 0.739527] [<ffffffff8130590f>] driver_register+0x6f/0x130
> > [ 0.739529] [<ffffffff811e5171>] __pci_register_driver+0x51/0xd0
> > [ 0.739533] [<ffffffff818f49a9>] ? flexcop_pci_module_init+0x0/0x1b
> > [ 0.739535] [<ffffffff818f49c2>] flexcop_pci_module_init+0x19/0x1b
> > [ 0.739538] [<ffffffff810002d9>] do_one_initcall+0x39/0x1a0
> > [ 0.739540] [<ffffffff818d1cc4>] kernel_init+0x14d/0x1d7
> > [ 0.739543] [<ffffffff81003194>] kernel_thread_helper+0x4/0x10
> > [ 0.739546] [<ffffffff818d1b77>] ? kernel_init+0x0/0x1d7
> > [ 0.739548] [<ffffffff81003190>] ? kernel_thread_helper+0x0/0x10
> > [ 0.739553] ---[ end trace 4e6b2faee55cb1bf ]---
> > [ 0.744389] DVB: registering new adapter (FlexCop Digital TV device)
> > [ 0.746102] b2c2-flexcop: MAC address = 00:d0:d7:0f:30:58
> > [ 0.946350] b2c2-flexcop: found 'ST STV0299 DVB-S' .
> > [ 0.946353] DVB: registering adapter 0 frontend 0 (ST STV0299
> > DVB-S)... [ 0.946422] b2c2-flexcop: initialization of 'Sky2PC/SkyStar
> > 2 DVB-S rev 2.6' at the 'PCI' bus controlled by a 'FlexCopIIb' complete
--
http://boris64.net 20xx ;)
[-- Attachment #2: This is a digitally signed message part. --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
^ permalink raw reply [flat|nested] 2+ messages in thread