Running: FreeBSD g1-252.catwhisker.org 11.1-STABLE FreeBSD 11.1-STABLE #484 r326952M/326974:1101506: Tue Dec 19 03:58:25 PST 2017 r...@g1-252.catwhisker.org:/common/S1/obj/usr/src/sys/CANARY amd64
(but I also noticed it in passing yesterday, running @r326928): ipfw pipe show generates: Dec 19 13:08:38 g1-252 kernel: REDZONE: Buffer overflow detected. 16 bytes corrupted after 0xfffff801ab736f48 (328 bytes allocated). Dec 19 13:08:38 g1-252 kernel: Allocation backtrace: Dec 19 13:08:38 g1-252 kernel: #0 0xffffffff80d49299 at redzone_setup+0xe9 Dec 19 13:08:38 g1-252 kernel: #1 0xffffffff80a1175d at malloc+0x22d Dec 19 13:08:38 g1-252 kernel: #2 0xffffffff80c95e07 at dummynet_get+0x337 Dec 19 13:08:38 g1-252 kernel: #3 0xffffffff80ba4102 at rip_ctloutput+0x102 Dec 19 13:08:38 g1-252 kernel: #4 0xffffffff80ac2d9d at sogetopt+0xcd Dec 19 13:08:38 g1-252 kernel: #5 0xffffffff80ac756b at kern_getsockopt+0xdb Dec 19 13:08:38 g1-252 kernel: #6 0xffffffff80ac7462 at sys_getsockopt+0x52 Dec 19 13:08:38 g1-252 kernel: #7 0xffffffff80e3a66a at amd64_syscall+0xa6a Dec 19 13:08:38 g1-252 kernel: #8 0xffffffff80e1cedb at Xfast_syscall+0xfb Dec 19 13:08:38 g1-252 kernel: Free backtrace: Dec 19 13:08:38 g1-252 kernel: #0 0xffffffff80d49604 at redzone_check+0x304 Dec 19 13:08:38 g1-252 kernel: #1 0xffffffff80a117b6 at free+0x46 Dec 19 13:08:38 g1-252 kernel: #2 0xffffffff80c9623d at dummynet_get+0x76d Dec 19 13:08:38 g1-252 kernel: #3 0xffffffff80ba4102 at rip_ctloutput+0x102 Dec 19 13:08:38 g1-252 kernel: #4 0xffffffff80ac2d9d at sogetopt+0xcd Dec 19 13:08:38 g1-252 kernel: #5 0xffffffff80ac756b at kern_getsockopt+0xdb Dec 19 13:08:38 g1-252 kernel: #6 0xffffffff80ac7462 at sys_getsockopt+0x52 Dec 19 13:08:38 g1-252 kernel: #7 0xffffffff80e3a66a at amd64_syscall+0xa6a Dec 19 13:08:38 g1-252 kernel: #8 0xffffffff80e1cedb at Xfast_syscall+0xfb Similarly; "ipfw sched show" yields: Dec 19 13:08:54 g1-252 kernel: REDZONE: Buffer overflow detected. 16 bytes corrupted after 0xfffff80232e73748 (328 bytes allocated). Dec 19 13:08:54 g1-252 kernel: Allocation backtrace: Dec 19 13:08:54 g1-252 kernel: #0 0xffffffff80d49299 at redzone_setup+0xe9 Dec 19 13:08:54 g1-252 kernel: #1 0xffffffff80a1175d at malloc+0x22d Dec 19 13:08:54 g1-252 kernel: #2 0xffffffff80c95e07 at dummynet_get+0x337 Dec 19 13:08:54 g1-252 kernel: #3 0xffffffff80ba4102 at rip_ctloutput+0x102 Dec 19 13:08:54 g1-252 kernel: #4 0xffffffff80ac2d9d at sogetopt+0xcd Dec 19 13:08:54 g1-252 kernel: #5 0xffffffff80ac756b at kern_getsockopt+0xdb Dec 19 13:08:54 g1-252 kernel: #6 0xffffffff80ac7462 at sys_getsockopt+0x52 Dec 19 13:08:54 g1-252 kernel: #7 0xffffffff80e3a66a at amd64_syscall+0xa6a Dec 19 13:08:54 g1-252 kernel: #8 0xffffffff80e1cedb at Xfast_syscall+0xfb Dec 19 13:08:54 g1-252 kernel: Free backtrace: Dec 19 13:08:54 g1-252 kernel: #0 0xffffffff80d49604 at redzone_check+0x304 Dec 19 13:08:54 g1-252 kernel: #1 0xffffffff80a117b6 at free+0x46 Dec 19 13:08:54 g1-252 kernel: #2 0xffffffff80c9623d at dummynet_get+0x76d Dec 19 13:08:54 g1-252 kernel: #3 0xffffffff80ba4102 at rip_ctloutput+0x102 Dec 19 13:08:54 g1-252 kernel: #4 0xffffffff80ac2d9d at sogetopt+0xcd Dec 19 13:08:54 g1-252 kernel: #5 0xffffffff80ac756b at kern_getsockopt+0xdb Dec 19 13:08:54 g1-252 kernel: #6 0xffffffff80ac7462 at sys_getsockopt+0x52 Dec 19 13:08:54 g1-252 kernel: #7 0xffffffff80e3a66a at amd64_syscall+0xa6a Dec 19 13:08:54 g1-252 kernel: #8 0xffffffff80e1cedb at Xfast_syscall+0xfb Yesterday was the first full day of running the laptop with FQ-CoDel implemented, and I noticed that in the evening, things (such as echoing charcaters in an xterm) would "pause" for a second or two, fairly randomly. I can't say that the above were associated with the pauses, but they are associated with the commands -- this is trivially reproducible (for me, anyway). Times in the above logs are UTC. Peace, david -- David H. Wolfskill da...@catwhisker.org Given his track record so far, I presume that assertions from Trump are lies. See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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