Hi, all I am trying to run writeboost on a tiny ARM machine, Raspberry Pi. writeboost can compile without any error nor warning but it doesn't even start ctr. What I do before running `dmsetup create` is # modprobe dm-mod # insmod dm-writeboost.ko After these two commands, lsmod looks insane. I suppose dm_writeboost module's refcount should be 0, not -1 (2147483647). Nonetheless, dmesg doesn't indicate anything at all. If I try to make a writeboost device after this, it hangs up the whole system. I have no idea what is happening in my system. If you know something about this, please help me. root@raspberrypi:~/dm-writeboost# lsmod Module Size Used by dm_writeboost 34473 2147483647 dm_mod 72892 1 dm_writeboost snd_bcm2835 16432 0 snd_pcm 77728 1 snd_bcm2835 snd_page_alloc 5169 1 snd_pcm snd_seq 53482 0 snd_seq_device 6462 1 snd_seq snd_timer 20110 2 snd_pcm,snd_seq snd 58744 5 snd_bcm2835,snd_timer,snd_pcm,snd_seq,snd_seq_device arc4 1684 2 rt2800usb 14948 0 rt2800lib 55431 1 rt2800usb rt2x00usb 11240 1 rt2800usb rt2x00lib 42342 3 rt2x00usb,rt2800lib,rt2800usb mac80211 273979 3 rt2x00lib,rt2x00usb,rt2800lib cfg80211 184390 2 mac80211,rt2x00lib rfkill 18298 2 cfg80211 crc_ccitt 1530 1 rt2800lib leds_gpio 2243 0 led_class 3570 2 leds_gpio,rt2x00lib Akira -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
