Bug 15908
| Summary: | Not able to use nozomi modem | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Marek (marwooj) |
| Component: | Other | Assignee: | drivers_other |
| Status: | CLOSED CODE_FIX | ||
| Severity: | normal | CC: | alan, jirislaby |
| Priority: | P1 | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.34-rc6 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
nozomi tty count fix
nozomi-set-tty-driver_data |
||
[ 2555.073036] Warning: dev (noz0) tty->count(0) != #fd's(1) in tty_open [ 2555.073137] noz: activated 0: f3bd4060 [ 2555.276931] BUG: unable to handle kernel NULL pointer dereference at 000001b8 [ 2555.276968] IP: [<c04fd355>] __mutex_lock_common+0x75/0x340 [ 2555.277000] *pde = 00000000 [ 2555.277018] Oops: 0002 [#1] SMP [ 2555.277042] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor [ 2555.277057] Modules linked in: ipt_REDIRECT binfmt_misc xt_state xt_tcpudp ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 arc4 ecb nozomi pcmcia iptable_filter ip_tables x_tables ath5k mac80211 ath yenta_socket rsrc_nonstatic cfg80211 r8169 serio_raw pcmcia_core mii led_class k8temp i2c_piix4 ppdev shpchp parport_pc parport [ 2555.277312] [ 2555.277327] Pid: 1672, comm: comgt Not tainted 2.6.34-rc6-m04 #2 GA-MA69VM-S2/GA-MA69VM-S2 [ 2555.277340] EIP: 0060:[<c04fd355>] EFLAGS: 00010046 CPU: 0 [ 2555.277353] EIP is at __mutex_lock_common+0x75/0x340 [ 2555.277364] EAX: 00000100 EBX: 000001b4 ECX: 00000000 EDX: e8458000 [ 2555.277376] ESI: 000001b8 EDI: 00000202 EBP: e3cf5abc ESP: e3cf5a74 [ 2555.277387] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 [ 2555.277399] Process comgt (pid: 1672, ti=e3cf5000 task=e8458000 task.ti=e3cf5000) [ 2555.277409] Stack: [ 2555.277417] 00000000 00000002 00000000 f80c3d9a e3cf5000 c0306d04 000001f0 00000002 [ 2555.277474] <0> 00000000 e8458000 00000000 00000246 00000000 00000000 f80c3de0 00000000 [ 2555.277542] <0> 000001b4 00001000 e3cf5ad0 c04fd6d5 f80c3d9a 00000000 000001b4 e3cf5ae4 [ 2555.277616] Call Trace: [ 2555.277636] [<f80c3d9a>] ? ntty_write_room+0x4a/0x90 [nozomi] [ 2555.277654] [<c0306d04>] ? trace_hardirqs_on_thunk+0xc/0x10 [ 2555.277670] [<f80c3de0>] ? ntty_write+0x0/0x1f0 [nozomi] [ 2555.277683] [<c04fd6d5>] ? mutex_lock_nested+0x35/0x40 [ 2555.277698] [<f80c3d9a>] ? ntty_write_room+0x4a/0x90 [nozomi] [ 2555.277713] [<f80c3d9a>] ? ntty_write_room+0x4a/0x90 [nozomi] [ 2555.277727] [<f80c3de0>] ? ntty_write+0x0/0x1f0 [nozomi] [ 2555.277743] [<c0375c98>] ? tty_write_room+0x18/0x20 [ 2555.277757] [<c037382d>] ? n_tty_poll+0x13d/0x150 [ 2555.277770] [<c036f449>] ? tty_poll+0x69/0x80 [ 2555.277783] [<c03736f0>] ? n_tty_poll+0x0/0x150 [ 2555.277798] [<c0210d7b>] ? do_select+0x3db/0x740 [ 2555.277811] [<c02109a0>] ? do_select+0x0/0x740 [ 2555.277825] [<c0210800>] ? __pollwait+0x0/0xd0 [ 2555.277838] [<c02108d0>] ? pollwake+0x0/0x60 [ 2555.277850] [<c02108d0>] ? pollwake+0x0/0x60 [ 2555.277867] [<c012e89b>] ? kmemcheck_show_all+0x2b/0x40 [ 2555.277881] [<c0502510>] ? do_page_fault+0x0/0x470 [ 2555.277894] [<c012ea18>] ? kmemcheck_show+0x28/0x70 [ 2555.277907] [<c012ef9f>] ? kmemcheck_fault+0x4f/0x70 [ 2555.277920] [<c0502863>] ? do_page_fault+0x353/0x470 [ 2555.277934] [<c012f1ce>] ? kmemcheck_pte_lookup+0xe/0x40 [ 2555.277947] [<c012f1ce>] ? kmemcheck_pte_lookup+0xe/0x40 [ 2555.277961] [<c012f370>] ? kmemcheck_shadow_lookup+0x40/0x60 [ 2555.277975] [<c012f1ce>] ? kmemcheck_pte_lookup+0xe/0x40 [ 2555.277988] [<c012f370>] ? kmemcheck_shadow_lookup+0x40/0x60 [ 2555.278002] [<c012eb72>] ? kmemcheck_write_strict+0x32/0x50 [ 2555.278015] [<c012f1ce>] ? kmemcheck_pte_lookup+0xe/0x40 [ 2555.278029] [<c012f1ce>] ? kmemcheck_pte_lookup+0xe/0x40 [ 2555.278043] [<c012f370>] ? kmemcheck_shadow_lookup+0x40/0x60 [ 2555.278056] [<c012ea93>] ? kmemcheck_read_strict+0x33/0x80 [ 2555.278070] [<c012eb11>] ? kmemcheck_read+0x31/0x60 [ 2555.278083] [<c021181c>] ? core_sys_select+0x7c/0x2e0 [ 2555.278097] [<c012f1ce>] ? kmemcheck_pte_lookup+0xe/0x40 [ 2555.278110] [<c012e85b>] ? kmemcheck_show_addr+0xb/0x20 [ 2555.278123] [<c012e89b>] ? kmemcheck_show_all+0x2b/0x40 [ 2555.278136] [<c0502510>] ? do_page_fault+0x0/0x470 [ 2555.278149] [<c012ea18>] ? kmemcheck_show+0x28/0x70 [ 2555.278162] [<c012ef9f>] ? kmemcheck_fault+0x4f/0x70 [ 2555.278176] [<c012f1ce>] ? kmemcheck_pte_lookup+0xe/0x40 [ 2555.278189] [<c012e83b>] ? kmemcheck_hide_addr+0xb/0x20 [ 2555.278203] [<c012e938>] ? kmemcheck_hide+0x58/0xe0 [ 2555.278218] [<c01dc9d6>] ? might_fault+0x46/0xa0 [ 2555.278232] [<c0306d04>] ? trace_hardirqs_on_thunk+0xc/0x10 [ 2555.278245] [<c01dc9d6>] ? might_fault+0x46/0xa0 [ 2555.278258] [<c01dca1c>] ? might_fault+0x8c/0xa0 [ 2555.278271] [<c01dc9d6>] ? might_fault+0x46/0xa0 [ 2555.278284] [<c021191b>] ? core_sys_select+0x17b/0x2e0 [ 2555.278297] [<c02117c7>] ? core_sys_select+0x27/0x2e0 [ 2555.278312] [<c04ffbee>] ? debug_stack_correct+0x2e/0x40 [ 2555.278328] [<c0139671>] ? cpuacct_charge+0x81/0xe0 [ 2555.278342] [<c0139685>] ? cpuacct_charge+0x95/0xe0 [ 2555.278355] [<c013960a>] ? cpuacct_charge+0x1a/0xe0 [ 2555.278369] [<c0135610>] ? finish_task_switch+0x0/0xc0 [ 2555.278382] [<c0135681>] ? finish_task_switch+0x71/0xc0 [ 2555.278396] [<c01dc9d6>] ? might_fault+0x46/0xa0 [ 2555.278411] [<c016f4e9>] ? ktime_get_ts+0xd9/0x110 [ 2555.278426] [<c0211c3c>] ? sys_select+0x2c/0xb0 [ 2555.278440] [<c0102e90>] ? sysenter_do_call+0x12/0x32 [ 2555.278450] Code: 61 8e c0 85 f6 75 14 89 e0 25 00 f0 ff ff f7 40 14 00 ff ff 07 0f 85 ab 02 00 00 9c 5f fa e8 33 a7 c7 ff 8d 73 04 b8 00 01 00 00 <3e> 66 0f c1 43 04 38 e0 74 07 f3 90 8a 43 04 eb f5 8b 0d 80 61 [ 2555.278879] EIP: [<c04fd355>] __mutex_lock_common+0x75/0x340 SS:ESP 0068:e3cf5a74 [ 2555.278906] CR2: 00000000000001b8 [ 2555.278925] ---[ end trace 2645684b80d67991 ]--- [ 2555.372271] comgt used greatest stack depth: 944 bytes left Created attachment 27278 [details]
nozomi tty count fix
Could you try this patch?
Created attachment 27295 [details]
nozomi-set-tty-driver_data
Eh, one more fix.
|
There is device in /dev/ directory: ls -l /dev/noz* crw-rw---- 1 root dialout 251, 0 2010-05-05 11:31 /dev/noz0 crw-rw---- 1 root dialout 251, 1 2010-05-05 11:31 /dev/noz1 crw-rw---- 1 root dialout 251, 2 2010-05-05 11:31 /dev/noz2 crw-rw---- 1 root dialout 251, 3 2010-05-05 11:31 /dev/noz3 but trying to use it from any probram (pppd, comgt) gives: Can't open device /dev/noz0 and the dmesg has: Warning: dev (noz0) tty->count(0) != #fd's(1) in tty_open noz: activated 0: f685b860 BUG: unable to handle kernel NULL pointer dereference at 000000bc IP: [<c046b03c>] mutex_lock+0xc/0x30 *pde = 00000000 Oops: 0002 [#1] SMP last sysfs file: /sys/devices/pci0000:00/0000:00:14.4/0000:02:06.0/net/mon.wlan0 /flags Modules linked in: binfmt_misc xt_state xt_tcpudp ipt_MASQUERADE iptable_nat nf_ nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 nozomi arc4 pcmcia ecb ath5k m ac80211 ath iptable_filter ppdev yenta_socket parport_pc rsrc_nonstatic r8169 ip _tables lp x_tables usbserial pcmcia_core mii shpchp parport cfg80211 i2c_piix4 k8temp led_class serio_raw Pid: 1429, comm: wvdial Not tainted 2.6.34-rc6-m03 #1 GA-MA69VM-S2/GA-MA69VM-S2 EIP: 0060:[<c046b03c>] EFLAGS: 00210296 CPU: 0 EIP is at mutex_lock+0xc/0x30 EAX: 000000bc EBX: 000000bc ECX: f4e1ec00 EDX: f685b800 ESI: 00001000 EDI: 000000bc EBP: 00000000 ESP: f68f5b18 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Process wvdial (pid: 1429, ti=f68f4000 task=f60462e0 task.ti=f68f4000) Stack: 00000000 00001000 f802d3c5 f4e1ec00 00000000 f802d410 c02fda15 c02fb625 <0> f6ad2700 f4e1ec00 f6ba78b8 00000000 c02f7a9a f306bac0 c02fb4d0 00000004 <0> 00000010 f6ad2700 00000000 c01c67b7 f306bac0 00200286 ff000000 00000005 Call Trace: [<f802d3c5>] ? ntty_write_room+0x45/0x90 [nozomi] [<f802d410>] ? ntty_write+0x0/0x1f0 [nozomi] [<c02fda15>] ? tty_write_room+0x15/0x20 [<c02fb625>] ? n_tty_poll+0x155/0x170 [<c02f7a9a>] ? tty_poll+0x6a/0x80 [<c02fb4d0>] ? n_tty_poll+0x0/0x170 [<c01c67b7>] ? do_select+0x2b7/0x4f0 [<c01c6f30>] ? __pollwait+0x0/0xf0 [<c028c569>] ? elv_rb_add+0x79/0x90 [<c029904c>] ? cfq_insert_request+0x46c/0x4f0 [<c02a1516>] ? vsnprintf+0xb6/0x7f0 [<c03d1972>] ? raw_pci_write+0x82/0x90 [<c014f22b>] ? up+0xb/0x40 [<c01368eb>] ? release_console_sem+0x1ab/0x1f0 [<c01b488d>] ? __mem_cgroup_try_charge+0x5d/0x400 [<c061ffff>] ? powernow_cpu_init+0x16/0x426 [<c02a07db>] ? string+0x3b/0xd0 [<c046a164>] ? printk+0x17/0x1b [<f802be4e>] ? ntty_activate+0x7e/0xf0 [nozomi] [<c012a262>] ? __wake_up+0x42/0x60 [<c0300757>] ? tty_port_block_til_ready+0x1e7/0x270 [<c03008b9>] ? tty_port_tty_set+0x39/0x60 [<c014a400>] ? autoremove_wake_function+0x0/0x40 [<c02fa8f9>] ? tty_open+0x279/0x530 [<c031ddc2>] ? kobj_lookup+0xf2/0x140 [<c01c6ba3>] ? core_sys_select+0x1b3/0x2b0 [<c02fe899>] ? tty_mode_ioctl+0xa9/0x420 [<c02f9679>] ? tty_ioctl+0xc9/0x7d0 [<c0198e19>] ? handle_mm_fault+0x139/0x9c0 [<c02f95b0>] ? tty_ioctl+0x0/0x7d0 [<c01c480b>] ? vfs_ioctl+0x2b/0xb0 [<c01c49f9>] ? do_vfs_ioctl+0x79/0x5c0 [<c046f3a0>] ? do_page_fault+0x0/0x3e0 [<c046f544>] ? do_page_fault+0x1a4/0x3e0 [<c01c6e5f>] ? sys_select+0x2f/0xb0 [<c0102c10>] ? sysenter_do_call+0x12/0x22 Code: 8b 74 24 24 8b 7c 24 28 8b 6c 24 2c 83 c4 30 c3 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 83 ec 08 89 1c 24 89 c3 89 74 24 04 <3e> ff 08 79 05 e8 ba 00 00 00 89 e0 8b 74 24 04 25 00 e0 ff ff EIP: [<c046b03c>] mutex_lock+0xc/0x30 SS:ESP 0068:f68f5b18 CR2: 00000000000000bc ---[ end trace 6e73d3662da499c0 ]--- Warning: dev (noz0) tty->count(0) != #fd's(1) in tty_release_dev tty_release_dev: bad tty->count (-1) for noz0 strace comgt sig -d /dev/noz0 execve("/usr/local/bin/comgt", ["comgt", "sig", "-d", "/dev/noz0"], [/* 19 vars */]) = 0 brk(0) = 0x84d2000 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb77f7000 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat64(3, {st_mode=S_IFREG|0644, st_size=60969, ...}) = 0 mmap2(NULL, 60969, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb77e8000 close(3) = 0 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory) open("/lib/tls/i686/cmov/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\260l\1\0004\0\0\0"..., 512) = 512 fstat64(3, {st_mode=S_IFREG|0755, st_size=1319364, ...}) = 0 mmap2(NULL, 1329512, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb76a3000 mprotect(0xb77e1000, 4096, PROT_NONE) = 0 mmap2(0xb77e2000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x13e) = 0xb77e2000 mmap2(0xb77e5000, 10600, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb77e5000 close(3) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb76a2000 set_thread_area({entry_number:-1 -> 6, base_addr:0xb76a26c0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0 mprotect(0xb77e2000, 8192, PROT_READ) = 0 mprotect(0x8050000, 4096, PROT_READ) = 0 mprotect(0xb7815000, 4096, PROT_READ) = 0 munmap(0xb77e8000, 60969) = 0 time(NULL) = 1273052631 gettimeofday({1273052631, 353770}, NULL) = 0 ioctl(1, SNDCTL_TMR_TEMPO or TCGETA, {B38400 opost isig icanon echo ...}) = 0 brk(0) = 0x84d2000 brk(0x84f4000) = 0x84f4000 brk(0x84f3000) = 0x84f3000 open("/dev/noz0", O_RDWR|O_EXCL|O_NOCTTY|O_NONBLOCK) = -1 EIO (Input/output error) fstat64(1, {st_mode=S_IFCHR|0600, st_rdev=makedev(136, 1), ...}) = 0 mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb77f6000 write(1, "Can't open device /dev/noz0.\n", 29Can't open device /dev/noz0. ) = 29 ioctl(1, SNDCTL_TMR_SOURCE or TCSETA, {B38400 opost isig icanon echo ...}) = 0 exit_group(1) = ? Gnu C 4.4.1 Gnu make 3.81 binutils 2.20 util-linux 2.16 mount support module-init-tools 3.10 e2fsprogs 1.41.9 pcmciautils 014 PPP 2.4.5 Linux C Library 2.10.1 Dynamic linker (ldd) 2.10.1 Procps 3.2.8 Net-tools 1.60 Kbd 1.15 Sh-utils 7.4 wireless-tools 29 Modules Loaded ipt_REDIRECT ppp_async crc_ccitt binfmt_misc arc4 ecb xt_state xt_tcpudp ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nozomi nf_conntrack nf_defrag_ipv4 ath5k mac80211 ath iptable_filter ip_tables cfg80211 x_tables rfkill_backport pcmcia compat yenta_socket ppdev parport_pc rsrc_nonstaticlp pcmcia_core led_class parport usbserial serio_raw k8temp shpchp i2c_piix4 r8169 mii