I will let the current setup run for another 200 hours and deal with low memory mode then. Having had a quick glance at it, at least some of the bugs mentioned above show up and should get fix beforehand.
2016-08-29 8:20 GMT+02:00 Qu Wenruo <quwen...@cn.fujitsu.com>: > Thanks for your fuzzing images. > > Quite helpful. > > At 08/29/2016 02:06 PM, Lukas Lueg wrote: >> >> Hi, >> >> I've now spent around 160 hours of fuzzing BTRFS, here are the crashes >> I found so far. Every type of crash is reported only once although >> there are usually multiple locations where they show up (especially >> heap-use-after-free and calls to abort()). >> >> The following bug reports have attached to them images of ±18kb which >> expand to 16mb and reproduce a crash when running btrfsck; they all >> have been revirginized so CRC- and FSID-checks pass by a vanilla >> btrfsck. >> >> >> Use-after-free, shows up all over the place: >> https://bugzilla.kernel.org/show_bug.cgi?id=153641 >> >> Segfault in memcpy, yeah: >> https://bugzilla.kernel.org/show_bug.cgi?id=154021 >> >> Run-off-the-mill buffer-overflow: >> https://bugzilla.kernel.org/show_bug.cgi?id=154961 >> >> Endless loop in btrfsck: >> https://bugzilla.kernel.org/show_bug.cgi?id=155151 >> >> Calls to abort() by lack of error paths: >> https://bugzilla.kernel.org/show_bug.cgi?id=155181 >> >> Division by zero, the old problem of computing stripe_size: >> https://bugzilla.kernel.org/show_bug.cgi?id=155201 > > > Digging, while it's a little different from the original one. > > BTW, for btrfsck bugs, would you please also try the new low memory mode? > For example, the above image won't trigger bug in low memory mode. > > Thanks, > Qu >> >> >> >> There are many more crashes like the above; how do you guys want them >> to be reported? >> >> >> Best regards >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in >> the body of a message to majord...@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> >> > > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
