Dear Denis, no, we know nothing about this problem. Could you please create bug in opnevz jira?
Thank you, Vasily Averin On 2017-09-28 17:55, Denis Kirjanov wrote: > Hi, we're seeing double faults in async_page_fault. > _Some_ of them related to the fact that during the faults RSP points > to userspace and it leads to double-fault scenario. > > Is it known problem? > > Thanks! > > [11587.895394] Hardware name: Virtuozzo KVM, BIOS 1.9.1-5.3.2.vz7.6 04/01/2014 > [11587.895394] task: ffff88020bee0000 ti: ffff880204b60000 task.ti: > ffff880204b60000 > [11587.895394] RIP: 0010:[<ffffffff816a1bdd>] [<ffffffff816a1bdd>] > async_page_fault+0xd/0x30 > [11587.895394] RSP: 002b:ffff880234f61fd8 EFLAGS: 00010096 > [11587.895394] RAX: 00000000816a192c RBX: 0000000000000001 RCX: > ffffffff816a192c > [11587.895394] RDX: ffff88023fc03fc0 RSI: 0000000000000000 RDI: > ffff880234f62098 > [11587.895394] RBP: ffff880234f62088 R08: ffff88023fbfffc0 R09: > ffff88003642af00 > [11587.895394] R10: 0000000000008000 R11: 0000000000000000 R12: > ffff88023fc04f58 > [11587.895394] R13: 0000000000000028 R14: 0000000000000000 R15: > 0000000000000000 > [11587.895394] FS: 00007ff80ffc1880(0000) GS:ffff88023fc00000(0000) > knlGS:0000000000000000 > [11587.895394] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > [11587.895394] CR2: ffff880234f61fc8 CR3: 00000000b9436000 CR4: > 00000000000007f0 > [11587.895394] DR0: 0000000000000000 DR1: 0000000000000000 DR2: > 0000000000000000 > [11587.895394] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: > 0000000000000400 > [11587.895394] Stack: > [11587.895394] 0000c7e9e11c7f44 0000270f05836600 906666906666fb02 > be00000001b9d231 > [11587.895394] e8df8948ffffffff 0000000231a6fba8 0001000000000008 > 0000000000000000 > [11587.895394] 0002000000000000 0000000000000000 0003000000000000 > 0000000000000000 > [11587.895394] Call Trace: > [11587.895394] Code: 48 89 e7 48 8b 74 24 78 48 c7 44 24 78 ff ff ff > ff e8 78 3d 00 00 e9 33 02 00 00 0f 1f 00 66 66 90 66 66 90 66 66 90 > 48 83 ec 78 <e8> 7e 01 00 00 48 89 e7 48 8b 74 24 78 48 c7 44 24 78 ff > ff ff > [11587.895394] RIP [<ffffffff816a1bdd>] async_page_fault+0xd/0x30 > [11587.895394] RSP <ffff880234f61fd8> > _______________________________________________ > Devel mailing list > Devel@openvz.org > https://lists.openvz.org/mailman/listinfo/devel > _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel