Messages in this thread | | | Date | Fri, 9 Jan 2004 14:55:34 -0800 | From | Andrew Morton <> | Subject | Re: 2.6.1-mm1 - OOPs and hangs during modprobe |
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Valdis.Kletnieks@vt.edu wrote: > > Summary: 2.6.1-mm1 gives an OOPs while doing a modprobe. Subsequent > references to /proc/modules hang (causing hangs while doing a 'shutdown' > because of scripts trying to rmmod modules. lsmod and 'cat /proc/modules' > hang as well after the oops. > > This one's from trying to load ip_conntrack_ftp: > > Module len 6897 truncated > Unable to handle kernel NULL pointer dereference at virtual address 00000004 > printing eip: > c013040b > *pde = 00000000 > Oops: 0002 [#1] > PREEMPT > CPU: 0 > EIP: 0060:[<c013040b>] Not tainted VLI > EFLAGS: 00010002 > EIP is at sys_init_module+0x90/0x225 > eax: 00000004 ebx: 0807a3e8 ecx: c03d5c30 edx: d187b104 > esi: 00000000 edi: cf220000 ebp: cf221fbc esp: cf221fb0 > ds: 007b es: 007b ss: 0068 > Process modprobe (pid: 172, threadinfo=cf220000 task=cf4606c0) > Stack: 0807a3e8 00000002 080573a0 cf220000 c03548de 0807a3e8 00001af1 0807a088 > 00000002 080573a0 bfffe8c0 00000080 0000007b 0000007b 00000080 ffffd41a > 00000073 00000287 bfffe8c0 0000007b > Call Trace: > [<c03548de>] sysenter_past_esp+0x43/0x65 > > Code: d8 57 3d c0 ff 05 d8 57 3d c0 0f 8e ac 06 00 00 89 c2 e9 9f 01 00 00 fa bf 00 e0 ff ff 21 e7 ff 47 14 8b 15 e8 57 3d c0 8d 40 04 <89> 56 04 89 42 04 a3 e8 57 3d c0 c7 40 04 e8 57 3d c0 fb 8b 47 > <6>note: modprobe[172] exited with preempt_count 1 > Debug: sleeping function called from invalid context at include/linux/rwsem.h:43 > in_atomic():1, irqs_disabled():0 > Call Trace: > [<c011b50f>] __might_sleep+0xa4/0xac > [<c011f16f>] do_exit+0xd9/0x389 > [<c010c5d2>] do_divide_error+0x0/0xad > [<c011893d>] do_page_fault+0x35f/0x4b2 > [<c014576f>] unmap_vm_area+0x2c/0x73 > [<c0145a81>] vfree+0x25/0x27 > [<c0130354>] load_module+0x790/0x7b7 > [<c01185de>] do_page_fault+0x0/0x4b2 > [<c035535f>] error_code+0x2f/0x38 > [<c013040b>] sys_init_module+0x90/0x225 > [<c03548de>] sysenter_past_esp+0x43/0x65 > > My original thought was that the ip_conntrack_ftp.ko got corrupted,
My original thought is about Rusty.
The `check for truncated module' patch is clearly triggering when it should not be. It then incorrectly returns "success" from load_module() even though load_module() failed.
A `patch -R' of
ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.1/2.6.1-mm1/broken-out/check-for-truncated-modules.patch
should fix it up. - 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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