Messages in this thread | | | Date | Sat, 25 Aug 2007 03:14:19 +0200 | From | Adrian Bunk <> | Subject | Re: possible BUG while doing gpg --gen-key |
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On Fri, Aug 24, 2007 at 06:30:20PM +0200, Udo van den Heuvel wrote: > While doing gpg --gen-key I can reproduce quite well some sort of > crash/bug/etc: > # gpg --gen-key >... > We need to generate a lot of random bytes. It is a good idea to perform > some other action (type on the keyboard, move the mouse, utilize the > disks) during the prime generation; this gives the random number > generator a better chance to gain enough entropy. > +++++++++++++++++++++++++.++++++++++++++++++++.+++++.+++++.++++++++++.++++++++++++++ > > ++++++++++++++++.++++++++++++++++++++++++++++++++++++++++>...+++++......+++++ > Segmentation fault > (...) > # dmesg > (...) > BUG: unable to handle kernel paging request at virtual address a5773b04 > printing eip: > a5773b04 > *pde = 00000000 > Oops: 0000 [#1] > PREEMPT > Modules linked in: nls_utf8 cifs pwc sch_tbf ipt_recent xt_string > xt_MARK xt_length xt_tcpmss xt_mac xt_mark w83627hf hwmon_vid eeprom sit > tunnel4 nf_nat_h323 nf_conntrack_h323 nf_nat_ftp nf_conntrack_ftp > ipt_tos ipt_REDIRECT nf_nat_irc nf_conntrack_irc ipt_owner ipt_ttl ipv6 > ipt_MASQUERADE iptable_nat nf_nat xt_NOTRACK iptable_raw ipt_TOS > iptable_mangle ipt_LOG xt_TCPMSS xt_limit xt_state ipt_TARPIT ipt_REJECT > iptable_filter binfmt_misc nvram snd_via82xx snd_ac97_codec ac97_bus > snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_pcm_oss > snd_mixer_oss snd_pcm compat_ioctl32 videodev snd_timer snd_page_alloc > parport_pc v4l2_common snd_mpu401_uart v4l1_compat snd_rawmidi parport > snd_seq_device snd usblp i2c_viapro uhci_hcd > CPU: 0 > EIP: 0060:[<a5773b04>] Not tainted VLI > EFLAGS: 00010292 (2.6.22.2 #4) > EIP is at 0xa5773b04 > eax: 00000000 ebx: 32b79617 ecx: 00000000 edx: 00000000 > esi: 15997020 edi: 184a7dfa ebp: d861266a esp: dbe0ff18 > ds: 007b es: 007b fs: 0000 gs: 0033 ss: 0068 > Process gpg (pid: 22121, ti=dbe0e000 task=d0a84a50 task.ti=dbe0e000) > Stack: cfc26544 b3546f92 f00ab86f a7815764 b1000d9d 7e024d7b ef89803b > 3a816173 > db38f9a3 4d18a9b1 de997ad3 bee35cf6 6a3b6724 43e1382b 13e8dabb > 1c129e64 > 81cc5ec8 e3073404 706dc511 90ba38c5 5a8912dc 67e387e7 63e76d1b > 54f7bf10 > Call Trace: > [<c0103b75>] show_trace_log_lvl+0x1a/0x2f > [<c0103c27>] show_stack_log_lvl+0x9d/0xa5 > [<c0103dfc>] show_registers+0x1cd/0x2e3 > [<c0104010>] die+0xfe/0x200 > [<c010fb77>] do_page_fault+0x43c/0x511 > [<c030220a>] error_code+0x6a/0x70 > ======================= > Code: Bad EIP value. > EIP: [<a5773b04>] 0xa5773b04 SS:ESP 0068:dbe0ff18 > > > FWIW: I run audio-entropyd and use netdev-random. Both pieces of > sofwtare don't interfere as far as I know.
Can you try without both, and if it works, which of them causes the problem?
> strace shows: >... > open("/dev/random", O_RDONLY|O_LARGEFILE) = 5 > fstat64(5, {st_mode=S_IFCHR|0666, st_rdev=makedev(1, 8), ...}) = 0 > select(6, [5], NULL, NULL, {3, 0}) = 1 (in [5], left {3, 0}) > read(5, > "x\250v\340\342\212\2614\"\242\273i\201}\355\30\361\262a\272\230\226\2\32\352d\307\350#\324R\343"..., > 300) = 128 > select(6, [5], NULL, NULL, {3, 0}) = 1 (in [5], left {3, 0}) > read(5, <unfinished ...> > +++ killed by SIGSEGV +++ > > > This is on a VIA Epia EK8000 again.
Is CONFIG_HW_RANDOM_VIA enabled in your kernel? If yes, does disabling it help?
> Udo
cu Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed
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