[uml-devel] REBOOT fails 2.4.26-3um

["D. Bahi" <dbahi@enterasys.com>]

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any one else seeing trouble with uml_mconsole <umid> reboot ?

1) currently when machine_restart is called it dies in the 
do_uml_exitcalls on
a call to open on the umid dir (but setting kmalloc_ok = 0 allows us to get
past this and on to the next - via reboot_skas)

2) This occurs right after the reboot when signals are unmasked temporarily.

 

#0  panic (fmt=0x81b3652 "Segfault with no mm") at panic.c:60

#1  0x080da339 in segv (address=3221194032, ip=0, is_write=0, is_user=0, 
sc=0xbfff8270) at trap_kern.c:149

#2  0x080da67d in segv_handler (sig=11, regs=0xbfff8270) at trap_user.c:74

#3  0x080dcab5 in sig_handler_common_skas (sig=11, sc_ptr=0x58) at 
trap_user.c:35

#4  0x080da69e in sig_handler (sig=11, sc={gs = 0, __gsh = 0, fs = 0, 
__fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 136625644, esi 
= 3221193328, ebp = 3221213548, esp = 3221213524, ebx = 3221213592, edx 
= 0, ecx = 3221214352, eax = 3221192704, trapno = 14, err = 4, eip = 
135121499, cs = 35, __csh = 0, eflags = 66438, esp_at_signal = 
3221213524, ss = 43, __ssh = 0, fpstate = 0x0, oldmask = 436216320, cr2 
= 3221194032}) at trap_user.c:109

#5  <signal handler called>

#6  sig_handler_common_skas (sig=29, sc_ptr=0xbfffd198) at trap_user.c:25

#7  0x080da69e in sig_handler (sig=29, sc={gs = 0, __gsh = 0, fs = 0, 
__fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 0, edi = 1, esi = 8, ebp 
= 3221214328, esp = 3221214316, ebx = 1, edx = 0, ecx = 3221214352, eax 
= 0, trapno = 1, err = 0, eip = 135624481, cs = 35, __csh = 0, eflags = 
642, esp_at_signal = 3221214316, ss = 43, __ssh = 0, fpstate = 0x0, 
oldmask = 134217728, cr2 = 679845888}) at trap_user.c:109

#8  <signal handler called>

#9  0x08157721 in sigprocmask ()

#10 0x080d8948 in change_signals (type=1) at signal_user.c:69

#11 0x080d898d in unblock_signals () at signal_user.c:80

#12 0x080502b3 in main (argc=14, argv=0xbfffd824, envp=0xbfffd860) at 
arch/um/main.c:161

#13 0x0815711b in __libc_start_main ()

-- 
db


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