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> Catalin, Can you what kernel that is? 2.4.20pre10 works ok but 2.4.20 crash. With traffic -> no crash with 2.4.20. Without traffic, on other machine, no crash. > > It's triggered, because someone does something like > > spin_lock_bh(&my_lock); > > p = kmalloc(,GFP_KERNEL); > > > > I don't like the proposed fix: usually code that calls > > kmalloc(,GFP_KERNEL) assumes that it runs at process space, e.g. uses > > semaphores, or non-bh spinlocks, etc. > > slab just happens to contain a test that complains about illegal calls. > > ok. Nice. > > > > > >>Trace; c0127e0f <kmalloc+eb/110> > > >>Trace; c01d3cac <qdisc_create_dflt+20/bc> > > >>Trace; d081ecc7 <END_OF_CODE+1054ff0f/????> > > >>Trace; c01d5265 <tc_ctl_tclass+1cd/214> > > >>Trace; d0820600 <END_OF_CODE+10551848/????> > > >>Trace; c01d27e4 <rtnetlink_rcv+298/3bc> > > >>Trace; c01d0605 <__neigh_event_send+89/1b4> > > >>Trace; c01d7cd4 <netlink_data_ready+1c/60> > > >>Trace; c01d7730 <netlink_unicast+230/278> > > >>Trace; c01d7b73 <netlink_sendmsg+1fb/20c> > > >>Trace; c01c79d5 <sock_sendmsg+69/88> > > >>Trace; c01c8b48 <sys_sendmsg+18c/1e8> > > >>Trace; c0120010 <map_user_kiobuf+8/f8> > > >> > > >> > > >> > > >> > > I don't understand the backtrace. Were any modules loaded? Perhaps > > 0xd081ecc7 is a module. > > > > Probably a module. Again Catalin, run no modules. It's a production machine. I cannot test this. We plan to replace the machine, so I can test then. > > I'd add a > > if(in_interrupt()) show_stack(NULL); > > into qdisc_create_dflt(), and try to reproduce the bug without modules. > > > > Catalin - again instead of your fix can you please add this call? See above. I cannot test now. I'm very sorry! > cheers, > jamal > --- Catalin(ux) BOIE catab@deuroconsult.ro - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | |||||||||
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