<div dir="ltr"><br clear="all"><div><span style="color:rgb(0,0,0);font-size:10pt;font-family:Kalinga,sans-serif">We have seen a SIGSEGV crash on glusterfs process on kernel restart at start up.<br><br>(gdb) bt <br>#0 0x00003fffad4463b0 in _IO_unbuffer_all () at genops.c:960 <br>#1 _IO_cleanup () at genops.c:1020 <br>#2 0x00003fffad400d00 in __run_exit_handlers (status=<optimized out>, listp=<optimized out>, run_list_atexit=run_list_atexit@entry=true) at exit.c:95 <br>#3 0x00003fffad400e1c in __GI_exit (status=<optimized out>) at exit.c:104 <br>#4 0x000000001000984c in cleanup_and_exit (signum=<optimized out>) at glusterfsd.c:1295 <br>#5 0x0000000010009a64 in <b>glusterfs_sigwaiter </b>(arg=<optimized out>) at glusterfsd.c:2016 <br>#6 0x00003fffad57db30 in start_thread (arg=0x3fffab302160) at pthread_create.c:462 <br>#7 0x00003fffad4c7cdc in .__clone () at ../sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S:96 <br><br>(gdb) bt full <br>#0 0x00003fffad4463b0 in _IO_unbuffer_all () at genops.c:960 <br> __result = 0 <br> __self = 0x3fffab302160 <br> cnt = 1 <br> fp = 0x3fffa4001f00 <br>#1 _IO_cleanup () at genops.c:1020 <br> result = 0 <br>#2 0x00003fffad400d00 in __run_exit_handlers (status=<optimized out>, listp=<optimized out>, run_list_atexit=run_list_atexit@entry=true) at exit.c:95 <br> ptr = 0x3fffad557000 <__elf_set___libc_atexit_element__IO_cleanup__> <br>#3 0x00003fffad400e1c in __GI_exit (status=<optimized out>) at exit.c:104 <br>No locals. <br>#4 0x000000001000984c in cleanup_and_exit (signum=<optimized out>) at glusterfsd.c:1295 <br> ctx = <optimized out> <br> trav = <optimized out> <br> __FUNCTION__ = <error reading variable __FUNCTION__ (Cannot access memory at address 0x10010e38)> <br>#5 0x0000000010009a64 in glusterfs_sigwaiter (arg=<optimized out>) at glusterfsd.c:2016 <br> set = {__val = {18947, 0 <repeats 15 times>}} <br> ret = <optimized out> <br> sig = 15 <br>#6 0x00003fffad57db30 in start_thread (arg=0x3fffab302160) at pthread_create.c:462 <br> pd = 0x3fffab302160 <br> now = <optimized out> <br> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {5451414826039278896, 70367357615104, 5451414826003312788, 0, 0, 70367312883712, 70367321268768, 8388608, <br> 70367357575200, 70367913735952, 268595776, 70367357600728, 268588656, 3, 0, 70367357600744, 70367913735600, 70367913735656, 4001536, <br> 70367357576216, 70367321265984, -3187653564, 0 <repeats 42 times>}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, <br> cleanup = 0x0, canceltype = 0}}} <br> not_first_call = <optimized out> <br> pagesize_m1 = <optimized out> <br> sp = <optimized out> <br> freesize = <optimized out> <br> __PRETTY_FUNCTION__ = "start_thread" <br>---Type <return> to continue, or q <return> to quit--- <br>#7 0x00003fffad4c7cdc in .__clone () at ../sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S:96 <br>No locals <b><br><br>Can you please help us in finding the cause for SIGSEGV. ?</b></span><span style="color:rgb(0,0,0);font-family:"Times New Roman",serif;font-size:16px"> </span><b style="color:rgb(0,0,0);font-family:"Times New Roman",serif;font-size:16px"><span style="font-size:10pt;font-family:Kalinga,sans-serif"><br>Also please share your understanding on this issue.</span></b><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Regards<br>
Abhishek Paliwal<br>
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