Here is an example crash report generated by a seccomp violation (I removed sys_unlink from the whitelist)
https://crash-stats.mozilla.com/report/index/1a06f493-a4bf-40a1-a4eb-241aa2160706 The crash address is 0x57 which is 87 in decimal, which is the syscall number of unlink on x86_64 as seen here: https://github.com/torvalds/linux/blob/master/arch/x86/entry/syscalls/syscall_64.tbl#L96 On Wed, Jul 6, 2016 at 12:31 PM, Ted Mielczarek <t...@mielczarek.org> wrote: > On Tue, Jul 5, 2016, at 11:18 PM, Jed Davis wrote: > > Benjamin Smedberg <benja...@smedbergs.us> writes: > > > > > Assuming these crashes show up in crash-stats.mozilla.com, are there > > > particular signatures, metadata, or other patterns that would let us > say > > > "this crash is caused by a sandbox failure"? > > > > They should, and the expected distinguishing feature is a "Crash Reason" > > of "SIGSYS". I put a certain amount of work into getting the crash > > reporting integration to work properly back in the B2G era, and on > > desktop for media plugin processes. (However, there aren't automated > > tests to ensure it keeps working; "crashing the content process" isn't a > > use case that the test framework docs were very helpful with.) > > FYI, a number of mochitest-browser-chrome tests have since been written > that test crashing the content process: > > https://dxr.mozilla.org/mozilla-central/search?q=path%3Abrowser_*crash&redirect=true > > For example: > > https://dxr.mozilla.org/mozilla-central/source/browser/components/sessionstore/test/browser_crashedTabs.js > > There's even a BrowserTestUtils.crashBrowser function now: > > https://dxr.mozilla.org/mozilla-central/rev/70e05c6832e831374604ac3ce7433971368dffe0/testing/mochitest/BrowserTestUtils/BrowserTestUtils.jsm#758 > > That just does a simple near-null deref using ctypes, but it could > easily be expanded to be more useful. > > -Ted > _______________________________________________ > dev-platform mailing list > dev-platform@lists.mozilla.org > https://lists.mozilla.org/listinfo/dev-platform > _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
