Jiri Slaby <[EMAIL PROTECTED]> writes: >> Jiri Slaby <[EMAIL PROTECTED]> writes: >> >> > Could you test the patch below, if something changes? >> >> Just tested with low_latency commented out. Still oopses: >> >> BUG: unable to handle kernel NULL pointer dereference at virtual address >> 00000008 >> printing eip: >> f8f1730f >> *pde = 00000000 >> Oops: 0000 [#1] >> SMP >> Modules linked in: nvidia agpgart ipv6 nfs lockd nfs_acl sunrpc dm_mod >> sr_mod sbp2 ieee1394 ide_generic ide_disk e1000 snd_hda_intel snd_hda_codec >> snd_pcm_oss snd_mixer_oss snd_pcm snd_timer i2c_i801 tsdev psmouse snd >> soundcore snd_page_alloc i2c_core serio_raw parport_pc parport mxser_new >> evdev floppy pcspkr rtc ext3 jbd mbcache usb_storage usbhid ide_cd cdrom >> sd_mod uhci_hcd piix usbcore skge ata_piix libata scsi_mod generic ide_core >> thermal processor fan >> CPU: 0 >> EIP: 0060:[<f8f1730f>] Tainted: P VLI >> EFLAGS: 00010046 (2.6.18-3-686 #1) >> EIP is at mxser_receive_chars+0x21b/0x249 [mxser_new] > > Yes, port->tty still somewhere becomes NULL -- does this patch help?
In addition to my previous answer. I've performed the same tests with regular PC serial port. The issues with "Disabling Irq #N" and with I/O error on open() exist with this port as well, so they aren't mxser-specific. I wasn't able to reproduce oopses, so they do seem to be mxser-specific. -- Sergei. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
