[this was previously on linux-kernel, but without a single reply] Yesterday, I hotsynced my palm and surprisingly, for the first time, My 2.6.8.1 (Debian stock) kernel oopsed:
kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000070 kernel: printing eip: kernel: f8eb9584 kernel: *pde = 00000000 kernel: Oops: 0000 [#1] kernel: PREEMPT kernel: Modules linked in: visor usbserial ehci_hcd usb_storage hci_usb uhci_hcd usbcore nls_iso8859_1 \ nls_cp437 bnep rfcomm l2cap ide_cd cdrom ipv6 lp thermal fan button processor ac battery af_packet \ ipt_LOG ipt_limit ipt_REJECT ipt_state iptable_filter ipt_MASQUERADE iptable_nat ip_conntrack ip_tables \ 8139cp bt878 eth1394 sata_promise libata ohci1394 ieee1394 pci_hotplug via_agp agpgart pcspkr parport_pc \ parport bluetooth sd_mod scsi_mod tuner tvaudio msp3400 bttv video_buf i2c_algo_bit v4l2_common btcx_risc \ i2c_core videodev 8139too mii crc32 tg3 firmware_class snd_bt87x via_ircc irda crc_ccitt snd_via82xx \ snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc gameport snd_mpu401_uart \ snd_rawmidi snd_seq_device snd soundcore dm_mod tsdev mousedev evdev capability commoncap psmouse rtc xfs \ reiserfs vfat fat isofs ext2 ext3 jbd mbcache ide_generic via82cxxx ide_disk ide_core unix font vesafb \ cfbcopyarea cfbimgblt cfbfillrect kernel: CPU: 0 kernel: EIP: 0060:[__crc_bio_phys_segments+294547/1648624] Not tainted kernel: EFLAGS: 00010246 (2.6.8-1-k7) kernel: EIP is at serial_chars_in_buffer+0x24/0xa0 [usbserial] kernel: eax: f5910000 ebx: 00000000 ecx: 00000000 edx: d99d7b20 kernel: esi: ffffffea edi: 00000000 ebp: c1dd74c0 esp: f0c99ea4 kernel: ds: 007b es: 007b ss: 0068 kernel: Process pilot-xfer (pid: 23205, threadinfo=f0c98000 task=c1df88e0) kernel: Stack: c1df8a88 00000000 7fffffff 00000004 00000000 f5910000 c01dd3ff f5910000 kernel: f591091c f0c99f44 c1dd74c0 00000008 00000003 00000003 c01d8f85 f5910000 kernel: c1dd74c0 00000000 00000000 c016727e c1dd74c0 00000000 00000000 00000000 kernel: Call Trace: kernel: [normal_poll+239/336] normal_poll+0xef/0x150 kernel: [tty_poll+101/128] tty_poll+0x65/0x80 kernel: [do_select+606/720] do_select+0x25e/0x2d0 kernel: [__pollwait+0/208] __pollwait+0x0/0xd0 kernel: [sys_select+703/1216] sys_select+0x2bf/0x4c0 kernel: [syscall_call+7/11] syscall_call+0x7/0xb kernel: Code: 8b 53 70 85 d2 75 35 a1 84 00 ec f8 85 c0 75 0e 89 f0 8b 5c The result is surprising: USB still works, but the usbserial subtree (in terms of dependencies) seems to be ballooney. At least, visor.o seems to be used by 2^32-1 which I don't think exists. ;^> $ lsmod [...] visor 18256 4294967295 usbserial 29928 3 visor [...] So this post fulfills two purposes. First, it's a bug report, and if you need any more info, please let me know. Second, I am wondering how to remove or reinitialise visor.o now. # rmmod visor ERROR: Module visor is in use CONFIG_MODULE_FORCE_UNLOAD is set, but I am cautious because I do not want to crash the system right now, it's being intensively used. This is also the reason why I don't simply reboot to fix the problem. What else can I do? Cheers, -- martin; (greetings from the heart of the sun.) \____ echo mailto: !#^."<*>"|tr "<*> mailto:"; [EMAIL PROTECTED] invalid/expired pgp subkeys? use subkeys.pgp.net as keyserver! spamtraps: [EMAIL PROTECTED] "sometimes we sit and read other people's interpretations of our lyrics and think, 'hey, that's pretty good.' if we liked it, we would keep our mouths shut and just accept the credit as if it was what we meant all along." -- john lennon
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