<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt">some more info:<br>I am debugging crash utility with gdb, and getting following stack trace.<br><br>crash> timer<br>TVEC_BASES[0]: c0a419c0<br>JIFFIES<br>4297762<br>EXPIRES TIMER_LIST FUNCTION<br> 128 c1621ea8 c007260c <idle_worker_timeout><br> 30208 c0b81f04 c04e4244 <inet_frag_secret_rebuild><br> 30720 c0b7f264 c0461440 <flow_cache_new_hashrnd><br> 30840 dba2be04 c0068ebc <process_timeout><br> 38228 dbae5e04 c0068ebc <process_timeout><br>11796480 c097cb64 c0010aa4 <sched_clock_poll><br>4294937694 c0a6f118 c026f820
<rx_timeout_handler><br>4294945658 c16238fc c007412c <delayed_work_timer_fn><br>4294945667 d811be14 c0068ebc <process_timeout><br>4294945700 c16237cc c007412c <delayed_work_timer_fn><br>4294945700 c16236e0 c007412c <delayed_work_timer_fn><br>4294946020 c0a1dcbc c007412c <delayed_work_timer_fn><br>4294946029 dca8f884 c007412c <delayed_work_timer_fn><br>4294946504 c0b871c4 c007412c <delayed_work_timer_fn><br>4294950720 c0b81d6c c007412c <delayed_work_timer_fn><br><br>Breakpoint 2, do_list (ld=0xff961c78) at
tools.c:3507<br>3507 error(INFO, "\ninvalid list entry: %lx\n", next);<br>(gdb) bt<br>#0 do_list (ld=0xff961c78) at tools.c:3507<br>#1 0x0811de03 in do_timer_list (vec_kvaddr=3699761524, size=256, vec=0x85c9f40, option=0x0, highest=0x0, tv=0xff962ec4) at kernel.c:6983<br>#2 0x0811c9d3 in dump_timer_data_tvec_bases_v2 () at kernel.c:6678<br>#3 0x0811afac in dump_timer_data () at kernel.c:6370<br>#4 0x0811af8a in cmd_timer () at kernel.c:6329<br>#5 0x080910a1 in exec_command () at main.c:818<br>#6 0x08090ec7 in main_loop () at main.c:766<br>#7 0x081bf35a in current_interp_command_loop ()<br>#8 0x081bfbcf in captured_command_loop ()<br>#9 0x081beddc in catch_errors ()<br>#10 0x081c0a9a in captured_main ()<br>#11 0x081beddc in catch_errors
()<br>#12 0x081c0adc in gdb_main ()<br>#13 0x081c0b29 in gdb_main_entry ()<br>#14 0x08121590 in gdb_main_loop (argc=2, argv=0xff964014) at gdb_interface.c:76<br>#15 0x08090c01 in main (argc=3, argv=0xff964014) at main.c:671<br><br><div><span>here exactly I hit invalid entry.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br><span></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>Regards,</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>Oza.<br></span></div><div><br></div> <div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"> <div style="font-family: times new roman,new
york,times,serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> <hr size="1"> <b><span style="font-weight: bold;">From:</span></b> paawan oza <paawan1982@yahoo.com><br> <b><span style="font-weight: bold;">To:</span></b> Dave Anderson <anderson@redhat.com>; "Discussion list for crash utility usage, maintenance and development" <crash-utility@redhat.com> <br> <b><span style="font-weight: bold;">Sent:</span></b> Friday, 1 March 2013 10:58 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Crash-utility] timer: invalid list entry: 1<br> </font> </div> <br><div id="yiv700895485"><div><div style="color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); font-family: times new roman,new york,times,serif; font-size: 12pt;"> I would give some more info.<br><br>It is dual core system. (ARM)<br>both core are stuck at wfi (wait for interrupt)<br>and we observe that the timer counter has one much
ahead than the comparators.<br>so we never get a local timer interrupt, and nobody is there to wake the cpu up.<br><div><br><span></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>so we observe the freeze.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br><span></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>Regards,</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>Oza.<br></span></div><div><br></div> <div style="font-family: times new roman,new york,times,serif; font-size:
12pt;"> <div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> <hr size="1"> <b><span style="font-weight: bold;">From:</span></b> Dave Anderson <anderson@redhat.com><br> <b><span style="font-weight: bold;">To:</span></b> paawan oza <paawan1982@yahoo.com>; "Discussion list for crash utility usage, maintenance and development" <crash-utility@redhat.com> <br> <b><span style="font-weight: bold;">Sent:</span></b> Thursday, 28 February 2013 7:54 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Crash-utility] timer: invalid list entry:
1<br> </font> </div> <br><br><br>----- Original Message -----<br>> <br>> <br>> <br>> Hi,<br>> <br>> I am getting folowing: I am unable to get whether there is memory<br>> corruption or crash utility has problem displaying.<br>> <br>> using crash utility version: 6.1.1<br>> kernel version : 3.4.5+<br>> <br>> I am getting following.<br>> <br>> crash> timer<br>> TVEC_BASES[0]: c0a419c0<br>> JIFFIES<br>> 4297762<br>> EXPIRES TIMER_LIST FUNCTION<br>> 128 c1621ea8 c007260c <idle_worker_timeout><br>> 30208 c0b81f04 c04e4244 <inet_frag_secret_rebuild><br>> 30720 c0b7f264 c0461440 <flow_cache_new_hashrnd><br>> 30840 dba2be04 c0068ebc <process_timeout><br>> 38228 dbae5e04 c0068ebc <process_timeout><br>> 11796480 c097cb64 c0010aa4 <sched_clock_poll><br>> 4294937694 c0a6f118 c026f820 <rx_timeout_handler><br>> 4294945658 c16238fc c007412c
<delayed_work_timer_fn><br>> 4294945667 d811be14 c0068ebc <process_timeout><br>> 4294945700 c16237cc c007412c <delayed_work_timer_fn><br>> 4294945700 c16236e0 c007412c <delayed_work_timer_fn><br>> 4294946020 c0a1dcbc c007412c <delayed_work_timer_fn><br>> 4294946029 dca8f884 c007412c <delayed_work_timer_fn><br>> 4294946504 c0b871c4 c007412c <delayed_work_timer_fn><br>> 4294950720 c0b81d6c c007412c <delayed_work_timer_fn><br>> timer: invalid list entry: 1<br>> timer: ignoring faulty timer list at index 44 of timer array<br>> timer: invalid list entry: 1<br>> timer: ignoring faulty timer list at index 44 of timer array<br>> TVEC_BASES[1]: dc85e000<br>> JIFFIES<br>> 4297762<br>> EXPIRES TIMER_LIST FUNCTION<br>> 384 c0a42ba8 c007260c <idle_worker_timeout><br>> 4297862 dbec0dfc c007412c <delayed_work_timer_fn><br>> 4297897 c162c6e0 c007412c
<delayed_work_timer_fn><br>> 4297962 dbec0ea0 c04a7cec <estimation_timer><br>> 4297997 c162c7cc c007412c <delayed_work_timer_fn><br>> 4300768 dcb36654 c007412c <delayed_work_timer_fn><br>> 4309824 c0a20024 c0516718 <addrconf_verify><br>> 4327762 dcaabf54 c0068ebc <process_timeout><br>> 4327808 c162aea8 c007260c <idle_worker_timeout><br>> 4357762 dbaa3e04 c0068ebc <process_timeout><br>> 4357762 dbaa3e04 c0068ebc <process_timeout><br>> 4357888 c0b83fa4 c04e4244 <inet_frag_secret_rebuild><br>> 4357888 c0b84694 c04e4244 <inet_frag_secret_rebuild><br>> 4357888 c0b83fa4 c04e4244 <inet_frag_secret_rebuild><br>> 4357888 c0b84694 c04e4244 <inet_frag_secret_rebuild><br>> <br>> <br>> <br>> Regards,<br>> Oza.<br><br>It's impossible to answer without knowing the specifics.<br><br>It could be corruption, or perhaps the cpu 0 was
manipulating<br>the timer chains when the kernel panicked, or perhaps there<br>is some off-the-wall condition that the crash utility has<br>never encountered.<br> <br>Dave<br> <br><br>Dave<br><br><br><br><br><br> </div> </div> </div></div></div><br><br> </div> </div> </div></body></html>