# Monitor the system for dropped packets and proudce a report of drop locations and counts import os import sys sys.path.append(os.environ['PERF_EXEC_PATH'] + \ '/scripts/python/Perf-Trace-Util/lib/Perf/Trace') from perf_trace_context import * from Core import * from Util import * drop_log = {} kallsyms = [] def get_kallsyms_table(): global kallsyms try: f = open("/proc/kallsyms", "r") linecount = 0 for line in f: linecount = linecount+1 f.seek(0) except: return j = 0 for line in f: loc = int(line.split()[0], 16) name = line.split()[2] j = j +1 if ((j % 100) == 0): print "\r" + str(j) + "/" + str(linecount), kallsyms.append({ 'loc': loc, 'name' : name}) print "\r" + str(j) + "/" + str(linecount) kallsyms.sort() return def get_sym(sloc): loc = int(sloc) for i in kallsyms: if (i['loc'] >= loc): return (i['name'], i['loc']-loc) return (None, 0) def print_drop_table(): print "%25s %25s %25s" % ("LOCATION", "OFFSET", "COUNT") for i in drop_log.keys(): (sym, off) = get_sym(i) if sym == None: sym = i print "%25s %25s %25s" % (sym, off, drop_log[i]) def trace_begin(): print "Starting trace (Ctrl-C to dump results)" def trace_end(): print "Gathering kallsyms data" get_kallsyms_table() print_drop_table() # called from perf, when it finds a correspoinding event def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm, skbaddr, protocol, location): slocation = str(location) try: drop_log[slocation] = drop_log[slocation] + 1 except: drop_log[slocation] = 1 lue='linux-2.6.22.y'>linux-2.6.22.y Hosts the 0x221E linux distro kernel.Ubuntu
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k-recovery.c?id=f3821276f62c80184f4b7543e423ec5c7f43bbe1&showmsg=1'>Expand)
AgeCommit message (Expand)Author
Author
2018-06-12treewide: Use array_size() in vzalloc()Kees Cook
2018-06-01lightnvm: pblk: only try to recover lines with written smetaHans Holmberg
2018-06-01lightnvm: pblk: rework write error recovery pathHans Holmberg
2018-05-30lightnvm: convert to bioset_init()/mempool_init()Kent Overstreet
2018-03-29lightnvm: pblk: don't recover unwritten linesHans Holmberg
2018-03-29lightnvm: simplify geometry structureJavier González
2018-03-29lightnvm: remove nvm_dev_ops->max_phys_sectMatias Bjørling
2018-03-29lightnvm: pblk: export write amplification counters to sysfsHans Holmberg
2018-03-29lightnvm: pblk: check data lines version on recoveryHans Holmberg
2018-01-05lightnvm: pblk: ignore high ecc errors on recoveryJavier González
2018-01-05lightnvm: pblk: use exact free block counter in RLJavier González
2018-01-05lightnvm: pblk: refactor emeta consistency checkHans Holmberg
2018-01-05lightnvm: pblk: compress and reorder helper functionsJavier González
2018-01-05lightnvm: make geometry structures 2.0 readyMatias Bjørling
2017-10-13lightnvm: implement generic path for sync I/OJavier González
2017-10-13lightnvm: pblk: consider bad sectors in emeta during recoveryHans Holmberg
2017-10-13lightnvm: pblk: recover partially written lines correctlyHans Holmberg
2017-10-13lightnvm: pblk: refactor rqd alloc/freeJavier González
2017-10-13lightnvm: pblk: improve naming for internal req.Javier González
2017-10-13lightnvm: pblk: put bio on bio completionJavier González
2017-10-13lightnvm: pblk: remove checks on mempool alloc.Javier González
2017-10-13lightnvm: pblk: do not use a mempool for line bitmapsJavier González
2017-10-13lightnvm: pblk: print incompatible line version correctlyRakesh Pandit