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Message-ID: <1178296546.463b60e24ce76@webmail.ics.forth.gr> Date: Fri, 4 May 2007 19:35:46 +0300 From: mcatos@....forth.gr To: linux-kernel@...r.kernel.org Subject: Re: Error using the buffer cache I have isolated the problem a little bit. Here's what I do: struct buffer_head *bh; sector_t sector = 0; bh = __bread(bdev, sector, bdev_get_queue(bdev)->hardsect_size); brelse(bh); sector++; bh = __bread(bdev, sector, bdev_get_queue(bdev)->hardsect_size); brelse(bh); And I get this error: BUG: soft lockup detected on CPU#1! [] show_trace_log_lvl+0x185/0x1a0 [] show_trace+0x12/0x20 [] dump_stack+0x19/0x20 [] softlockup_tick+0x9e/0xd0 [] run_local_timers+0x12/0x20 [] update_process_times+0x34/0x80 [] smp_apic_timer_interrupt+0x6d/0x80 [] apic_timer_interrupt+0x2a/0x30 [] _read_unlock_irq+0x24/0x30 DWARF2 unwinder stuck at _read_unlock_irq+0x24/0x30 Leftover inexact backtrace: [] show_trace+0x12/0x20 [] dump_stack+0x19/0x20 [] softlockup_tick+0x9e/0xd0 [] run_local_timers+0x12/0x20 [] update_process_times+0x34/0x80 [] smp_apic_timer_interrupt+0x6d/0x80 [] apic_timer_interrupt+0x2a/0x30 [] find_lock_page+0x85/0xa0 [] find_or_create_page+0x3b/0xb0 [] __getblk+0xef/0x2e0 [] __bread+0x12/0xb0 What am I doing wrong? ------------------------------------------------- This mail sent through IMP: http://horde.org/imp/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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