Messages in this thread | | | Date | Thu, 23 Jul 2020 16:52:20 +0200 | From | Joerg Roedel <> | Subject | Re: Regression on todays tip/master (commit 16f70beccf43) |
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On Thu, Jul 23, 2020 at 04:46:04PM +0200, Thomas Gleixner wrote: > Joerg Roedel <joro@8bytes.org> writes: > > while testing the SEV-ES patches on todays tip/master I triggered the BUG > > below: > > > > [ 137.629660] ------------[ cut here ]------------ > > [ 137.630769] kernel BUG at kernel/signal.c:1917! > > [ 137.631796] invalid opcode: 0000 [#1] SMP NOPTI > > [ 137.632822] CPU: 3 PID: 28596 Comm: test_syscall_vd Not tainted 5.8.0-rc6-tip+ #3 > > [ 137.634495] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 > > [ 137.636236] RIP: 0010:do_notify_parent+0x25c/0x290 > > The guest had 4 VCPUs and ran 4 instances of the in-kernel x86-selftests > > in a loop, together with 'perf top -e cycles:k'. As you can see in the > > time-stamps, the issue triggered pretty quickly. > > > > Please let me know if you need more information or testing from my side. > > Any chance to bisect this?
Yes, will try. I am currently testing plain -rc6, it seems to be fine. Bisecting is next.
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