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[[!comment format=c
username="https://www.google.com/accounts/o8/id?id=AItOawlmLuHhscJsoAqb9q0N3LdtHum6LjY1LK4"
nickname="Markus"
subject="comment 8"
date="2015-02-17T14:43:19Z"
content="""
ssh -t makes no difference, the strace output:
it's completely repetitive, only the futex and mmap calls are at random positions (mmap probably leads to the enormous memory consumption)
rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
clock_gettime(0x2 /* CLOCK_??? */, {31, 737743240}) = 0
clock_gettime(CLOCK_MONOTONIC, {365100, 810332327}) = 0
clock_gettime(0x3 /* CLOCK_??? */, {31, 737155560}) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
futex(0x2b32fb1c, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x2b32fb18, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
futex(0x2b32fb48, FUTEX_WAKE_PRIVATE, 1) = 1
futex(0x41981d0, FUTEX_WAKE_PRIVATE, 1) = 1
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
clock_gettime(0x2 /* CLOCK_??? */, {31, 851239760}) = 0
clock_gettime(CLOCK_MONOTONIC, {365100, 933314386}) = 0
clock_gettime(0x3 /* CLOCK_??? */, {31, 850549960}) = 0
mmap2(0x30b00000, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x30b00000
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [HUP ILL TRAP KILL USR1 USR2 CHLD TSTP TTIN URG XFSZ VTALRM IO PWR])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
clock_gettime(0x2 /* CLOCK_??? */, {56, 575838240}) = 0
clock_gettime(CLOCK_MONOTONIC, {365125, 751101804}) = 0
clock_gettime(0x3 /* CLOCK_??? */, {56, 574935120}) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [ILL FPE KILL SEGV USR2 PIPE TERM STOP TSTP URG XCPU XFSZ VTALRM])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [QUIT ABRT BUS PIPE TERM CONT STOP URG IO PWR])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [QUIT ABRT BUS PIPE TERM CONT STOP URG IO PWR])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [QUIT ABRT BUS PIPE TERM CONT STOP URG IO PWR])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
sigreturn() = ? (mask now [QUIT ABRT BUS PIPE TERM CONT STOP URG IO PWR])
--- SIGVTALRM (Virtual timer expired) @ 0 (0) ---
"""]]
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