kernel: 2.6.31.5-grsec (latest grsec patch, grsec low, pax disabled)
problem:
grsec: (default:D:/usr/lib/chromium-browser/chromium-browser-sandbox) denied ptrace of /usr/lib/chromium-browser/chromium-browser by /usr/lib/chromium-browser/chromium-browser[chromium-browse:21722] uid/euid:1000/1000 gid/egid:1000/1000, parent /usr/lib/chromium-browser/chromium-browser-sandbox[chromium-browse:21721] uid/euid:1000/0 gid/egid:1000/1000
policy:
subject /usr/lib/chromium-browser/chromium-browser Ot
I tried basically a lot of combinations, t, r, added /usr/lib/chromium-browser/chromium-browser rx below it, still I get the same error. (I need the O flag.)