Hi, On Sun, May 13, 2018 at 02:35:07PM +0300, Roman Makhov wrote: > Hello, > > We have a problem with Kernel panic after upgrade from CentOS 7.3 > (kernel-3.10.0-514.el7) to CentOS 7.4 (kernel-3.10.0-693.21.1.el7). > It occurs when we have the incoming traffic from other nodes and we > are performing the re-configuration of IPv6 interfaces. > > It is high-availability system without 802.15.4 support. > > The log of crash: > ========================================================= > #10 [ffff88043fc03cf0] async_page_fault at ffffffff816b7798 > [exception RIP: ndisc_send_rs+238] > RIP: ffffffff8166575e RSP: ffff88043fc03da8 RFLAGS: 00010202 > RAX: 0000000000000002 RBX: ffff88042caa9000 RCX: 0000000000000001 > RDX: 0000000000000000 RSI: 0000000000000200 RDI: ffffffff816534f7 > RBP: ffff88043fc03dd0 R8: 0000000000000000 R9: ffffffff81e9f1c0 > R10: 0000000000000002 R11: ffff88043fc03da8 R12: 0000000000000008 > R13: 0000000000000006 R14: ffff88043fc03de0 R15: ffffffff81772410 > ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 > #11 [ffff88043fc03da0] ndisc_send_rs at ffffffff81665704 > ========================================================= > > I see that crash points on ndisc.h, it is ndisc_ops_opt_addr_space() > in function: > ========================================================= > crash> kmem ffffffff8166575e > ffffffff8166575e (T) ndisc_send_rs+238 > /usr/src/debug/kernel-3.10.0-693.21.1.el7/linux-3.10.0-693.21.1.el7.x86_64/include/net/ndisc.h: > 251 > > PAGE PHYSICAL MAPPING INDEX CNT FLAGS > ffffea0000059940 1665000 0 0 1 1fffff00000400 reserved > crash> > ========================================================= > > I checked the difference between 514 and 693 kernels is in the patch > https://patchwork.kernel.org/patch/9179229/ . > > Any suggesions about what I am doing wrong are welcome. > Me as original author of this patch, I cannot help you with such a dinosaurs kernel. Please try it with the latest one and check if the problem still exists. - Alex -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
