On 19.12.2017 16:17, David Wolfskill wrote: > 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).
It would be nice if you created PR where you described steps to reproduce this. Your kernel/modules config, commands you used to get this result. -- WBR, Andrey V. Elsukov
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