Date: Mon, 30 Sep 2024 11:20:24 +0000 From: bugzilla-noreply@freebsd.org To: jail@FreeBSD.org Subject: [Bug 281751] Unable to start jail from vty1... virtual terminal Message-ID: <bug-281751-29815-US9tIKn2mP@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-281751-29815@https.bugs.freebsd.org/bugzilla/> References: <bug-281751-29815@https.bugs.freebsd.org/bugzilla/>
next in thread | previous in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D281751 Olivier Certner <olce@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |olce@FreeBSD.org --- Comment #35 from Olivier Certner <olce@FreeBSD.org> --- @kib, @kevans: Too early to tell for this case, but the only failures of jail_attach(2) wi= th EPERM I've seen so far were caused by an outstanding open directory in the = root shell launching jail(8) or jexec(8). This is how I recently discovered the pam_xdg() file descriptor leak, fixed= in -CURRENT on 08/30 (06986e899972) and MFCed to 14-STABLE on 09/03 (9e8d504bb= 5a1) (13-STABLE not concerned). Given the tests performed by Alex, this is not = the exact problem here (else he wouldn't be able to reproduce it on a recent snapshot of -CURRENT), but might be the same kind of problem. @Alex I'd suggest a couple of things: 1. Report the output of 'fstat -p $$' from the shells used to launch the jail(8) or jexec(8) commands, both in the succeeding and failing cases. 2. Launch and keep running this dtrace script, then launch a failing 'jexec= ': dtrace -n 'fbt::mac_vnode_check_chroot:return,fbt::change_dir:return,fbt::pwd_chroot_= chdir:return /(int)arg1 =3D=3D EPERM/ { stack(); }' You shouldn't get much output from it, so you can keep it running for a whi= le.=20 Try to correlate its new outputs with your actions (particular launches), a= nd post all that here. Thanks and regards. --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-281751-29815-US9tIKn2mP>