Messages in this thread | | | From | Denis Vlasenko <> | Subject | Re: 2.4.21 on Itanium2: floating-point assist fault at ip 400000000062ada1, isr 0000020000000008 | Date | Wed, 31 Mar 2004 19:00:17 +0200 |
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On Wednesday 31 March 2004 15:16, Ulrich Windl wrote: > Hello, > > I did try to find an answer is SuSE's support database, not in SAP's > support database, and also did search Google, but could not find an answer: > > We run SuSE Linux Enterprise Server 8 (SLES8) on a HP rx4640 Itanium2 > server with 2 CPUs (family: Itanium 2, model: 1, revision: 5, archrev: 0). > > In syslog is do see periodic kernel messages (with no implicit priority) > that read: > > dw.sapC11_DVS02(14393): floating-point assist fault at ip 400000000062ada1, > isr 0000020000000008 > > ("dw.sapC11_DVS02" is a SAP R/3 work process (46D_EXT, patch 1754, for > those who care) > > Can anybody explain what this message means? Is it an application problem, > or is it a kernel problem?
static int fpu_swa_count = 0; static unsigned long last_time; ... if (jiffies - last_time > 5*HZ) fpu_swa_count = 0; if ((fpu_swa_count < 4) && !(current->thread.flags & IA64_THREAD_FPEMU_NOPRINT)) { last_time = jiffies; ++fpu_swa_count; printk(KERN_WARNING "%s(%d): floating-point assist fault at ip %016lx, isr %016lx\n", current->comm, current->pid, regs->cr_iip + ia64_psr(regs)->ri, isr); }
kernel says that you have them too frequently, which probably impairs efficiency. It's a hint to programmer. -- vda
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