What is wrong with dtrace's stack()?
Lev Serebryakov
lev at FreeBSD.org
Tue Oct 23 21:34:13 UTC 2018
Hello Ryan,
Monday, October 22, 2018, 11:50:29 PM, you wrote:
> Adding -fno-optimize-sibling-calls to the compiler flags will eliminate the TCO.
Stacks are better but still strange. For example I have such stack (which I
like better than previous):
kernel`lock_delay+0x72
kernel`sosend_generic+0x112c
kernel`sosend+0x79
kernel`soo_write+0x6b
kernel`fo_write+0x4a
kernel`dofilewrite+0xcd
kernel`kern_writev+0x79
kernel`sys_write+0x8f
kernel`syscallenter+0x774
kernel`amd64_syscall+0x1b
kernel`0xffffffff80cebf6d
According to addr2line `sosend_generic+0x112c' is
https://svnweb.freebsd.org/base/head/sys/kern/uipc_socket.c?revision=339419&view=markup#l1579
Which is call to protocol-specific send function. Where is this function
(it should be tcp for sure)?!
--
Best regards,
Lev mailto:lev at FreeBSD.org
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