Hi, Did you try to check and see if the RAM on the system is in good condition. I mean all of the RAM is good. At points if some part of RAM is bad and when the memory usage is high it may cause such problems. You can do a extensive test by using memtest86 or something like that. Or probably there is a third party tool that is causing memory violations. Axl. -----Original Message----- From: linux-admin-owner@xxxxxxxxxxxxxxx [mailto:linux-admin-owner@xxxxxxxxxxxxxxx] On Behalf Of Radu Filip Sent: Tuesday, February 14, 2006 9:38 PM To: linux-admin@xxxxxxxxxxxxxxx Subject: Please help: possible deadlock in kmem_alloc Hello, I have a Fedora Core 3 system (kernel 2.6.9-1.667smp) with an XFS filesystem and from time to time the system crashes with errors like this on the console (excerpts): [<0213d396>] __alloc_pages+0x28b/0x298 [<0213d3bb>] __get_free_pages+0x18/0x24 [<0213fc88>] kmem_getpages+0x1c/0xbb [<021407d9>] cache_grow+0xae/0x136 [<021409c6>] cache_alloc_refill+0x165/0x19d [<02140d9d>] __kmalloc+0x76/0x88 [<82a3ee20>] kmem_alloc+0x50/0x9e [xfs] [<82a22be6>] xfs_iread_extents+0x73/0xc4 [xfs] [<82a0319a>] xfs_bmapi+0x2de/0x12bf [xfs] [<02263fa6>] sk_reset_timer+0xc/0x16 [<0228ebee>] tcp_write_xmit+0x109/0x24c [<022641b2>] release_sock+0xf/0x4f [...] possible deadlock in kmem_alloc (mode: 0xd0) possible deadlock in kmem_alloc (mode: 0xd0) possible deadlock in kmem_alloc (mode: 0xd0) possible deadlock in kmem_alloc (mode: 0xd0) Debug: sleeping function called from invalid context at mm/slab.c:2063 Ive been googling a lot about this errors but all I found were old threads about kernel 2.1 or 2.4. Can somebody help me to figure out what is goig on? The system is in production (the XFS filesystem is an attached SCSI raid applicance) and I may not have the full freedom to try different kernels or distribution at will. At this point, I am interested to figure out what exactly the problem is. Thank you, Radu Filip - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html - : send the line "unsubscribe linux-admin" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
