Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 23 Mar 2003 19:14:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 23 Mar 2003 19:14:23 -0500 Received: from elaine24.Stanford.EDU ([171.64.15.99]:56459 "EHLO elaine24.Stanford.EDU") by vger.kernel.org with ESMTP id ; Sun, 23 Mar 2003 19:13:51 -0500 Date: Sun, 23 Mar 2003 16:24:52 -0800 (PST) From: Junfeng Yang To: linux-kernel@vger.kernel.org cc: mc@cs.stanford.edu Subject: [CHECKER] 63 potential calling blocking functions with locks held errors In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 56114 Lines: 1679 Enclosed are 63 potential calling blocking functions with lock held errors. 37 of them appeared in sound/oss/maestro3.c. Any confirmation or clarification will be greatly appreciated. Junfeng --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1772:m3_ioctl: ERROR:BLOCK:1771:1772:calling blocking fn m3_update_ptr with lock &(*card).lock held [m3_update_ptr calling stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1771] case SNDCTL_DSP_GETOSPACE: if (!(file->f_mode & FMODE_WRITE)) return -EINVAL; if (!(s->enable & DAC_RUNNING) && (val = prog_dmabuf(s, 0)) != 0) return val; Start ---> spin_lock_irqsave(&card->lock, flags); Error ---> m3_update_ptr(s); abinfo.fragsize = s->dma_dac.fragsize; abinfo.bytes = s->dma_dac.dmasize - s->dma_dac.count; abinfo.fragstotal = s->dma_dac.numfrag; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro.c:2773:ess_ioctl: ERROR:BLOCK:2772:2773:calling blocking fn ess_update_ptr with lock &(*s).lock held [ess_update_ptr calling get_dmaa calling apu_get_register calling check_suspend calling schedule][START: &(*s).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro.c, ess_ioctl, 2772] case SNDCTL_DSP_GETOPTR: if (!(file->f_mode & FMODE_WRITE)) return -EINVAL; if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0))) return ret; Start ---> spin_lock_irqsave(&s->lock, flags); Error ---> ess_update_ptr(s); cinfo.bytes = s->dma_dac.total_bytes; cinfo.blocks = s->dma_dac.count >> s->dma_dac.fragshift; cinfo.ptr = s->dma_dac.hwptr; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1826:m3_ioctl: ERROR:BLOCK:1825:1826:calling blocking fn m3_update_ptr with lock &(*card).lock held [m3_update_ptr calling stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1825] return 0; case SNDCTL_DSP_GETOPTR: if (!(file->f_mode & FMODE_WRITE)) return -EINVAL; Start ---> spin_lock_irqsave(&card->lock, flags); Error ---> m3_update_ptr(s); cinfo.bytes = s->dma_dac.total_bytes; cinfo.blocks = s->dma_dac.count >> s->dma_dac.fragshift; cinfo.ptr = s->dma_dac.hwptr; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1511:m3_poll: ERROR:BLOCK:1510:1511:calling blocking fn m3_update_ptr with lock &(*(*s).card).lock held [m3_update_ptr calling stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*(*s).card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_poll, 1510] if (file->f_mode & FMODE_WRITE) poll_wait(file, &s->dma_dac.wait, wait); if (file->f_mode & FMODE_READ) poll_wait(file, &s->dma_adc.wait, wait); Start ---> spin_lock_irqsave(&s->card->lock, flags); Error ---> m3_update_ptr(s); if (file->f_mode & FMODE_READ) { if (s->dma_adc.count >= (signed)s->dma_adc.fragsize) --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro.c:2756:ess_ioctl: ERROR:BLOCK:2755:2756:calling blocking fn ess_update_ptr with lock &(*s).lock held [ess_update_ptr calling get_dmaa calling apu_get_register calling check_suspend calling schedule][START: &(*s).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro.c, ess_ioctl, 2755] case SNDCTL_DSP_GETIPTR: if (!(file->f_mode & FMODE_READ)) return -EINVAL; if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1))) return ret; Start ---> spin_lock_irqsave(&s->lock, flags); Error ---> ess_update_ptr(s); cinfo.bytes = s->dma_adc.total_bytes; cinfo.blocks = s->dma_adc.count >> s->dma_adc.fragshift; cinfo.ptr = s->dma_adc.hwptr; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro.c:2745:ess_ioctl: ERROR:BLOCK:2744:2745:calling blocking fn ess_update_ptr with lock &(*s).lock held [ess_update_ptr calling get_dmaa calling apu_get_register calling check_suspend calling schedule][START: &(*s).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro.c, ess_ioctl, 2744] case SNDCTL_DSP_GETODELAY: if (!(file->f_mode & FMODE_WRITE)) return -EINVAL; if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0))) return ret; Start ---> spin_lock_irqsave(&s->lock, flags); Error ---> ess_update_ptr(s); val = s->dma_dac.count; spin_unlock_irqrestore(&s->lock, flags); return put_user(val, (int *)arg); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:430:m3_assp_read: ERROR:BLOCK:429:430:calling blocking fn __m3_assp_read with lock &(*card).lock held [__m3_assp_read calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_assp_read, 429] static u16 m3_assp_read(struct m3_card *card, u16 region, u16 index) { unsigned long flags; u16 ret; Start ---> spin_lock_irqsave(&(card->lock), flags); Error ---> ret = __m3_assp_read(card, region, index); spin_unlock_irqrestore(&(card->lock), flags); return ret; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/drivers/atm/iphase.c:3221:ia_init_one: ERROR:BLOCK:3220:3221:calling blocking fn ia_start with lock &(*iadev).misc_lock held [ia_start calling rx_init calling kmalloc][START: &(*iadev).misc_lock, unknown->locked, /home/junfeng/linux-2.5.63/drivers/atm/iphase.c, ia_init_one, 3220] ia_dev[iadev_count] = iadev; _ia_dev[iadev_count] = dev; iadev_count++; spin_lock_init(&iadev->misc_lock); /* First fixes first. I don't want to think about this now. */ Start ---> spin_lock_irqsave(&iadev->misc_lock, flags); Error ---> if (ia_init(dev) || ia_start(dev)) { IF_INIT(printk("IA register failed!\n");) iadev_count--; ia_dev[iadev_count] = NULL; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:449:m3_assp_write: ERROR:BLOCK:448:449:calling blocking fn __m3_assp_write with lock &(*card).lock held [__m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_assp_write, 448] static void m3_assp_write(struct m3_card *card, u16 region, u16 index, u16 data) { unsigned long flags; Start ---> spin_lock_irqsave(&(card->lock), flags); Error ---> __m3_assp_write(card, region, index, data); spin_unlock_irqrestore(&(card->lock), flags); } --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro.c:2727:ess_ioctl: ERROR:BLOCK:2726:2727:calling blocking fn ess_update_ptr with lock &(*s).lock held [ess_update_ptr calling get_dmaa calling apu_get_register calling check_suspend calling schedule][START: &(*s).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro.c, ess_ioctl, 2726] case SNDCTL_DSP_GETISPACE: if (!(file->f_mode & FMODE_READ)) return -EINVAL; if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1))) return ret; Start ---> spin_lock_irqsave(&s->lock, flags); Error ---> ess_update_ptr(s); abinfo.fragsize = s->dma_adc.fragsize; abinfo.bytes = s->dma_adc.count; abinfo.fragstotal = s->dma_adc.numfrag; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro.c:2468:ess_poll: ERROR:BLOCK:2467:2468:calling blocking fn ess_update_ptr with lock &(*s).lock held [ess_update_ptr calling get_dmaa calling apu_get_register calling check_suspend calling schedule][START: &(*s).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro.c, ess_poll, 2467] if (file->f_mode & FMODE_WRITE) poll_wait(file, &s->dma_dac.wait, wait); if (file->f_mode & FMODE_READ) poll_wait(file, &s->dma_adc.wait, wait); Start ---> spin_lock_irqsave(&s->lock, flags); Error ---> ess_update_ptr(s); if (file->f_mode & FMODE_READ) { if (s->dma_adc.count >= (signed)s->dma_adc.fragsize) mask |= POLLIN | POLLRDNORM; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1786:m3_ioctl: ERROR:BLOCK:1785:1786:calling blocking fn m3_update_ptr with lock &(*card).lock held [m3_update_ptr calling stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1785] case SNDCTL_DSP_GETISPACE: if (!(file->f_mode & FMODE_READ)) return -EINVAL; if (!(s->enable & ADC_RUNNING) && (val = prog_dmabuf(s, 1)) != 0) return val; Start ---> spin_lock_irqsave(&card->lock, flags); Error ---> m3_update_ptr(s); abinfo.fragsize = s->dma_adc.fragsize; abinfo.bytes = s->dma_adc.count; abinfo.fragstotal = s->dma_adc.numfrag; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1802:m3_ioctl: ERROR:BLOCK:1801:1802:calling blocking fn m3_update_ptr with lock &(*card).lock held [m3_update_ptr calling stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1801] return 0; case SNDCTL_DSP_GETODELAY: if (!(file->f_mode & FMODE_WRITE)) return -EINVAL; Start ---> spin_lock_irqsave(&card->lock, flags); Error ---> m3_update_ptr(s); val = s->dma_dac.count; spin_unlock_irqrestore(&card->lock, flags); return put_user(val, (int *)arg); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro.c:2713:ess_ioctl: ERROR:BLOCK:2712:2713:calling blocking fn ess_update_ptr with lock &(*s).lock held [ess_update_ptr calling get_dmaa calling apu_get_register calling check_suspend calling schedule][START: &(*s).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro.c, ess_ioctl, 2712] case SNDCTL_DSP_GETOSPACE: if (!(file->f_mode & FMODE_WRITE)) return -EINVAL; if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0))) return ret; Start ---> spin_lock_irqsave(&s->lock, flags); Error ---> ess_update_ptr(s); abinfo.fragsize = s->dma_dac.fragsize; abinfo.bytes = s->dma_dac.dmasize - s->dma_dac.count; abinfo.fragstotal = s->dma_dac.numfrag; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1811:m3_ioctl: ERROR:BLOCK:1810:1811:calling blocking fn m3_update_ptr with lock &(*card).lock held [m3_update_ptr calling stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1810] return put_user(val, (int *)arg); case SNDCTL_DSP_GETIPTR: if (!(file->f_mode & FMODE_READ)) return -EINVAL; Start ---> spin_lock_irqsave(&card->lock, flags); Error ---> m3_update_ptr(s); cinfo.bytes = s->dma_adc.total_bytes; cinfo.blocks = s->dma_adc.count >> s->dma_adc.fragshift; cinfo.ptr = s->dma_adc.hwptr; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1617:m3_ioctl: ERROR:BLOCK:1615:1617:calling blocking fn stop_dac with lock &(*card).lock held [stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1615] case SNDCTL_DSP_GETCAPS: return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg); case SNDCTL_DSP_RESET: Start ---> spin_lock_irqsave(&card->lock, flags); if (file->f_mode & FMODE_WRITE) { Error ---> stop_dac(s); synchronize_irq(s->card->pcidev->irq); s->dma_dac.swptr = s->dma_dac.hwptr = s->dma_dac.count = s->dma_dac.total_bytes = 0; } --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/drivers/ieee1394/sbp2.c:684:sbp2util_create_command_orb_pool: ERROR:BLOCK:682:684:calling blocking fn kmalloc with lock &(*scsi_id).sbp2_command_orb_lock held [kmalloc][START: &(*scsi_id).sbp2_command_orb_lock, unknown->locked, /home/junfeng/linux-2.5.63/drivers/ieee1394/sbp2.c, sbp2util_create_command_orb_pool, 682] unsigned long flags, orbs; struct sbp2_command_info *command; orbs = sbp2_serialize_io ? 2 : SBP2_MAX_COMMAND_ORBS; Start ---> spin_lock_irqsave(&scsi_id->sbp2_command_orb_lock, flags); for (i = 0; i < orbs; i++) { Error ---> command = (struct sbp2_command_info *) kmalloc(sizeof(struct sbp2_command_info), GFP_KERNEL); if (!command) { spin_unlock_irqrestore(&scsi_id->sbp2_command_orb_lock, flags); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/pci/korg1212/korg1212.c:1274:snd_korg1212_capture_open: ERROR:BLOCK:1272:1274:calling blocking fn snd_korg1212_OpenCard with lock &(*korg1212).lock held [snd_korg1212_OpenCard calling snd_korg1212_setCardState calling snd_korg1212_TurnOffIdleMonitor calling snd_korg1212_WaitForCardStopAck calling schedule][START: &(*korg1212).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/pci/korg1212/korg1212.c, snd_korg1212_capture_open, 1272] #if K1212_DEBUG_LEVEL > 0 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_open [%s]\n", stateName[korg1212->cardState]); #endif Start ---> spin_lock_irqsave(&korg1212->lock, flags); Error ---> snd_korg1212_OpenCard(korg1212); snd_pcm_set_sync(substream); // ??? --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/pci/korg1212/korg1212.c:1244:snd_korg1212_playback_open: ERROR:BLOCK:1242:1244:calling blocking fn snd_korg1212_OpenCard with lock &(*korg1212).lock held [snd_korg1212_OpenCard calling snd_korg1212_setCardState calling snd_korg1212_TurnOffIdleMonitor calling snd_korg1212_WaitForCardStopAck calling schedule][START: &(*korg1212).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/pci/korg1212/korg1212.c, snd_korg1212_playback_open, 1242] #if K1212_DEBUG_LEVEL > 0 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_open [%s]\n", stateName[korg1212->cardState]); #endif Start ---> spin_lock_irqsave(&korg1212->lock, flags); Error ---> snd_korg1212_OpenCard(korg1212); snd_pcm_set_sync(substream); // ??? --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/fs/jffs2/nodemgmt.c:111:jffs2_reserve_space_gc: ERROR:BLOCK:109:111:calling blocking fn jffs2_do_reserve_space with lock &(*c).erase_completion_lock held [jffs2_do_reserve_space calling schedule][START: &(*c).erase_completion_lock, unknown->locked, /home/junfeng/linux-2.5.63/fs/jffs2/nodemgmt.c, jffs2_reserve_space_gc, 109] int ret = -EAGAIN; minsize = PAD(minsize); D1(printk(KERN_DEBUG "jffs2_reserve_space_gc(): Requested 0x%x bytes\n", minsize)); Start ---> spin_lock_bh(&c->erase_completion_lock); while(ret == -EAGAIN) { Error ---> ret = jffs2_do_reserve_space(c, minsize, ofs, len); if (ret) { D1(printk(KERN_DEBUG "jffs2_reserve_space_gc: looping, ret is %d\n", ret)); } --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/pci/korg1212/korg1212.c:1408:snd_korg1212_prepare: ERROR:BLOCK:1406:1408:calling blocking fn snd_korg1212_SetupForPlay with lock &(*korg1212).lock held [snd_korg1212_SetupForPlay calling snd_korg1212_setCardState calling snd_korg1212_TurnOffIdleMonitor calling snd_korg1212_WaitForCardStopAck calling schedule][START: &(*korg1212).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/pci/korg1212/korg1212.c, snd_korg1212_prepare, 1406] #if K1212_DEBUG_LEVEL > 0 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_prepare [%s]\n", stateName[korg1212->cardState]); #endif Start ---> spin_lock_irqsave(&korg1212->lock, flags); Error ---> snd_korg1212_SetupForPlay(korg1212); korg1212->currentBuffer = -1; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro.c:1751:prog_dmabuf: ERROR:BLOCK:1748:1751:calling blocking fn stop_adc with lock &(*s).lock held [stop_adc calling apu_set_register calling check_suspend calling schedule][START: &(*s).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro.c, prog_dmabuf, 1748] unsigned bytepersec; unsigned bufs; unsigned char fmt; unsigned long flags; Start ---> spin_lock_irqsave(&s->lock, flags); fmt = s->fmt; if (rec) { Error ---> stop_adc(s); fmt >>= ESS_ADC_SHIFT; } else { stop_dac(s); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:2072:m3_release: ERROR:BLOCK:2069:2072:calling blocking fn stop_dac with lock &(*card).lock held [stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_release, 2069] VALIDATE_STATE(s); if (file->f_mode & FMODE_WRITE) drain_dac(s, file->f_flags & O_NONBLOCK); down(&s->open_sem); Start ---> spin_lock_irqsave(&card->lock, flags); if (file->f_mode & FMODE_WRITE) { Error ---> stop_dac(s); if(s->dma_dac.in_lists) { m3_remove_list(s->card, &(s->card->mixer_list), s->dma_dac.mixer_index); nuke_lists(s->card, &(s->dma_dac)); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1634:m3_ioctl: ERROR:BLOCK:1631:1634:calling blocking fn stop_adc with lock &(*card).lock held [stop_adc calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1631] spin_unlock_irqrestore(&card->lock, flags); return 0; case SNDCTL_DSP_SPEED: get_user_ret(val, (int *)arg, -EFAULT); Start ---> spin_lock_irqsave(&card->lock, flags); if (val >= 0) { if (file->f_mode & FMODE_READ) { Error ---> stop_adc(s); s->dma_adc.ready = 0; set_adc_rate(s, val); } --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1653:m3_ioctl: ERROR:BLOCK:1649:1653:calling blocking fn stop_adc with lock &(*card).lock held [stop_adc calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1649] spin_unlock_irqrestore(&card->lock, flags); return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, (int *)arg); case SNDCTL_DSP_STEREO: get_user_ret(val, (int *)arg, -EFAULT); Start ---> spin_lock_irqsave(&card->lock, flags); fmtd = 0; fmtm = ~0; if (file->f_mode & FMODE_READ) { Error ---> stop_adc(s); s->dma_adc.ready = 0; if (val) fmtd |= ESS_FMT_STEREO << ESS_ADC_SHIFT; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1094:prog_dmabuf: ERROR:BLOCK:1090:1094:calling blocking fn stop_adc with lock &(*(*s).card).lock held [stop_adc calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*(*s).card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, prog_dmabuf, 1090] unsigned bytepersec; unsigned bufs; unsigned char fmt; unsigned long flags; Start ---> spin_lock_irqsave(&s->card->lock, flags); fmt = s->fmt; if (rec) { Error ---> stop_adc(s); fmt >>= ESS_ADC_SHIFT; } else { stop_dac(s); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1679:m3_ioctl: ERROR:BLOCK:1674:1679:calling blocking fn stop_adc with lock &(*card).lock held [stop_adc calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1674] spin_unlock_irqrestore(&card->lock, flags); return 0; case SNDCTL_DSP_CHANNELS: get_user_ret(val, (int *)arg, -EFAULT); Start ---> spin_lock_irqsave(&card->lock, flags); if (val != 0) { fmtd = 0; fmtm = ~0; if (file->f_mode & FMODE_READ) { Error ---> stop_adc(s); s->dma_adc.ready = 0; if (val >= 2) fmtd |= ESS_FMT_STEREO << ESS_ADC_SHIFT; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/pci/korg1212/korg1212.c:1306:snd_korg1212_playback_close: ERROR:BLOCK:1301:1306:calling blocking fn snd_korg1212_CloseCard with lock &(*korg1212).lock held [snd_korg1212_CloseCard calling snd_korg1212_setCardState calling snd_korg1212_TurnOffIdleMonitor calling snd_korg1212_WaitForCardStopAck calling schedule][START: &(*korg1212).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/pci/korg1212/korg1212.c, snd_korg1212_playback_close, 1301] #if K1212_DEBUG_LEVEL > 0 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_playback_close [%s]\n", stateName[korg1212->cardState]); #endif Start ---> spin_lock_irqsave(&korg1212->lock, flags); korg1212->playback_substream = NULL; korg1212->periodsize = 0; Error ---> snd_korg1212_CloseCard(korg1212); spin_unlock_irqrestore(&korg1212->lock, flags); return 0; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/pci/korg1212/korg1212.c:1326:snd_korg1212_capture_close: ERROR:BLOCK:1321:1326:calling blocking fn snd_korg1212_CloseCard with lock &(*korg1212).lock held [snd_korg1212_CloseCard calling snd_korg1212_setCardState calling snd_korg1212_TurnOffIdleMonitor calling snd_korg1212_WaitForCardStopAck calling schedule][START: &(*korg1212).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/pci/korg1212/korg1212.c, snd_korg1212_capture_close, 1321] #if K1212_DEBUG_LEVEL > 0 K1212_DEBUG_PRINTK("K1212_DEBUG: snd_korg1212_capture_close [%s]\n", stateName[korg1212->cardState]); #endif Start ---> spin_lock_irqsave(&korg1212->lock, flags); korg1212->capture_substream = NULL; korg1212->periodsize = 0; Error ---> snd_korg1212_CloseCard(korg1212); spin_unlock_irqrestore(&korg1212->lock, flags); return 0; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1710:m3_ioctl: ERROR:BLOCK:1705:1710:calling blocking fn stop_adc with lock &(*card).lock held [stop_adc calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1705] case SNDCTL_DSP_GETFMTS: /* Returns a mask */ return put_user(AFMT_U8|AFMT_S16_LE, (int *)arg); case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/ get_user_ret(val, (int *)arg, -EFAULT); Start ---> spin_lock_irqsave(&card->lock, flags); if (val != AFMT_QUERY) { fmtd = 0; fmtm = ~0; if (file->f_mode & FMODE_READ) { Error ---> stop_adc(s); s->dma_adc.ready = 0; if (val == AFMT_S16_LE) fmtd |= ESS_FMT_16BIT << ESS_ADC_SHIFT; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/drivers/scsi/dpt_i2o.c:1705:adpt_i2o_passthru: ERROR:BLOCK:1699:1705:calling blocking fn adpt_i2o_post_wait with lock (*(*pHba).host).host_lock held [adpt_i2o_post_wait calling kmalloc][START: (*(*pHba).host).host_lock, unknown->locked, /home/junfeng/linux-2.5.63/drivers/scsi/dpt_i2o.c, adpt_i2o_passthru, 1699] sg[i].addr_bus = (u32)virt_to_bus((void*)p); } } do { Start ---> spin_lock_irqsave(pHba->host->host_lock, flags); // This state stops any new commands from enterring the // controller while processing the ioctl // pHba->state |= DPTI_STATE_IOCTL; // We can't set this now - The scsi subsystem sets host_blocked and // the queue empties and stops. We need a way to restart the queue Error ---> rcode = adpt_i2o_post_wait(pHba, msg, size, FOREVER); // pHba->state &= ~DPTI_STATE_IOCTL; spin_unlock_irqrestore(pHba->host->host_lock, flags); } while(rcode == -ETIMEDOUT); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro.c:1754:prog_dmabuf: ERROR:BLOCK:1748:1754:calling blocking fn stop_dac with lock &(*s).lock held [stop_dac calling apu_set_register calling check_suspend calling schedule][START: &(*s).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro.c, prog_dmabuf, 1748] unsigned bytepersec; unsigned bufs; unsigned char fmt; unsigned long flags; Start ---> spin_lock_irqsave(&s->lock, flags); fmt = s->fmt; if (rec) { stop_adc(s); fmt >>= ESS_ADC_SHIFT; } else { Error ---> stop_dac(s); fmt >>= ESS_DAC_SHIFT; } spin_unlock_irqrestore(&s->lock, flags); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1097:prog_dmabuf: ERROR:BLOCK:1090:1097:calling blocking fn stop_dac with lock &(*(*s).card).lock held [stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*(*s).card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, prog_dmabuf, 1090] unsigned bytepersec; unsigned bufs; unsigned char fmt; unsigned long flags; Start ---> spin_lock_irqsave(&s->card->lock, flags); fmt = s->fmt; if (rec) { stop_adc(s); fmt >>= ESS_ADC_SHIFT; } else { Error ---> stop_dac(s); fmt >>= ESS_DAC_SHIFT; } fmt &= ESS_FMT_MASK; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1622:m3_ioctl: ERROR:BLOCK:1615:1622:calling blocking fn stop_adc with lock &(*card).lock held [stop_adc calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1615] case SNDCTL_DSP_GETCAPS: return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, (int *)arg); case SNDCTL_DSP_RESET: Start ---> spin_lock_irqsave(&card->lock, flags); if (file->f_mode & FMODE_WRITE) { stop_dac(s); synchronize_irq(s->card->pcidev->irq); s->dma_dac.swptr = s->dma_dac.hwptr = s->dma_dac.count = s->dma_dac.total_bytes = 0; } if (file->f_mode & FMODE_READ) { Error ---> stop_adc(s); synchronize_irq(s->card->pcidev->irq); s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0; } --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro.c:3738:maestro_resume: ERROR:BLOCK:3731:3738:calling blocking fn maestro_config with lock &(*card).lock held [maestro_config calling maestro_read calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro.c, maestro_resume, 3731] maestro_resume(struct ess_card *card) { unsigned long flags; int i; Start ---> spin_lock_irqsave(&card->lock,flags); /* over-kill */ card->in_suspend = 0; M_printk("maestro: resuming card at %p\n",card); /* restore all our config */ Error ---> maestro_config(card); /* need to restore the base pointers.. */ if(card->dmapages) set_base_registers(&card->channels[0],card->dmapages); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:619:dec_timer_users: ERROR:BLOCK:611:619:calling blocking fn __m3_assp_write with lock &(*card).lock held [__m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, dec_timer_users, 611] static void dec_timer_users(struct m3_card *card) { unsigned long flags; Start ---> spin_lock_irqsave(&card->lock, flags); card->timer_users--; DPRINTK(DPSYS, "dec timer users now %d\n", card->timer_users); if(card->timer_users > 0 ) goto out; Error ---> __m3_assp_write(card, MEMTYPE_INTERNAL_DATA, KDATA_TIMER_COUNT_RELOAD, 0 ) ; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:2040:m3_open: ERROR:BLOCK:2032:2040:calling blocking fn set_adc_rate with lock &(*c).lock held [set_adc_rate calling m3_assp_write calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*c).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_open, 2032] if (signal_pending(current)) return -ERESTARTSYS; down(&s->open_sem); } Start ---> spin_lock_irqsave(&c->lock, flags); if (file->f_mode & FMODE_READ) { fmtm &= ~((ESS_FMT_STEREO | ESS_FMT_16BIT) << ESS_ADC_SHIFT); if ((minor & 0xf) == SND_DEV_DSP16) fmts |= ESS_FMT_16BIT << ESS_ADC_SHIFT; s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0; Error ---> set_adc_rate(s, 8000); } if (file->f_mode & FMODE_WRITE) { fmtm &= ~((ESS_FMT_STEREO | ESS_FMT_16BIT) << ESS_DAC_SHIFT); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:2854:m3_resume: ERROR:BLOCK:2846:2854:calling blocking fn m3_outw with lock &(*card).lock held [m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_resume, 2846] unsigned long flags; int index; int i; struct m3_card *card = pci_get_drvdata(pci_dev); Start ---> spin_lock_irqsave(&card->lock, flags); card->in_suspend = 0; DPRINTK(DPMOD, "resuming\n"); /* first lets just bring everything back. .*/ DPRINTK(DPMOD, "bringing power back on card 0x%p\n",card); Error ---> m3_outw(card, 0, 0x54); m3_outw(card, 0, 0x56); DPRINTK(DPMOD, "restoring pci configs and reseting codec\n"); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1639:m3_ioctl: ERROR:BLOCK:1631:1639:calling blocking fn stop_dac with lock &(*card).lock held [stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1631] spin_unlock_irqrestore(&card->lock, flags); return 0; case SNDCTL_DSP_SPEED: get_user_ret(val, (int *)arg, -EFAULT); Start ---> spin_lock_irqsave(&card->lock, flags); if (val >= 0) { if (file->f_mode & FMODE_READ) { stop_adc(s); s->dma_adc.ready = 0; set_adc_rate(s, val); } if (file->f_mode & FMODE_WRITE) { Error ---> stop_dac(s); s->dma_dac.ready = 0; set_dac_rate(s, val); } --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:592:inc_timer_users: ERROR:BLOCK:584:592:calling blocking fn __m3_assp_write with lock &(*card).lock held [__m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, inc_timer_users, 584] static void inc_timer_users(struct m3_card *card) { unsigned long flags; Start ---> spin_lock_irqsave(&card->lock, flags); card->timer_users++; DPRINTK(DPSYS, "inc timer users now %d\n", card->timer_users); if(card->timer_users != 1) goto out; Error ---> __m3_assp_write(card, MEMTYPE_INTERNAL_DATA, KDATA_TIMER_COUNT_RELOAD, 240 ) ; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:2079:m3_release: ERROR:BLOCK:2069:2079:calling blocking fn stop_adc with lock &(*card).lock held [stop_adc calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_release, 2069] VALIDATE_STATE(s); if (file->f_mode & FMODE_WRITE) drain_dac(s, file->f_flags & O_NONBLOCK); down(&s->open_sem); Start ---> spin_lock_irqsave(&card->lock, flags); if (file->f_mode & FMODE_WRITE) { stop_dac(s); if(s->dma_dac.in_lists) { m3_remove_list(s->card, &(s->card->mixer_list), s->dma_dac.mixer_index); nuke_lists(s->card, &(s->dma_dac)); } } if (file->f_mode & FMODE_READ) { Error ---> stop_adc(s); if(s->dma_adc.in_lists) { m3_remove_list(s->card, &(s->card->adc1_list), s->dma_adc.adc1_index); nuke_lists(s->card, &(s->dma_adc)); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:2807:m3_suspend: ERROR:BLOCK:2796:2807:calling blocking fn stop_dac with lock &(*card).lock held [stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_suspend, 2796] unsigned long flags; int i; struct m3_card *card = pci_get_drvdata(pci_dev); /* must be a better way.. */ Start ---> spin_lock_irqsave(&card->lock, flags); DPRINTK(DPMOD, "pm in dev %p\n",card); for(i=0;ichannels[i]; if(s->dev_audio == -1) continue; DPRINTK(DPMOD, "stop_adc/dac() device %d\n",i); Error ---> stop_dac(s); stop_adc(s); } --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/pci/korg1212/korg1212.c:1765:snd_korg1212_control_analog_put: ERROR:BLOCK:1753:1765:calling blocking fn snd_korg1212_WriteADCSensitivity with lock &(*korg1212).lock held [snd_korg1212_WriteADCSensitivity calling snd_korg1212_WaitForCardStopAck calling schedule][START: &(*korg1212).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/pci/korg1212/korg1212.c, snd_korg1212_control_analog_put, 1753] { korg1212_t *korg1212 = _snd_kcontrol_chip(kcontrol); unsigned long flags; int change = 0; Start ---> spin_lock_irqsave(&korg1212->lock, flags); if (u->value.integer.value[0] != korg1212->leftADCInSens) { korg1212->leftADCInSens = u->value.integer.value[0]; change = 1; } if (u->value.integer.value[1] != korg1212->rightADCInSens) { korg1212->rightADCInSens = u->value.integer.value[1]; change = 1; } if (change) Error ---> snd_korg1212_WriteADCSensitivity(korg1212); spin_unlock_irqrestore(&korg1212->lock, flags); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/drivers/ieee1394/ohci1394.c:994:ohci_devctl: ERROR:BLOCK:982:994:calling blocking fn alloc_dma_rcv_ctx with lock &(*ohci).IR_channel_lock held [alloc_dma_rcv_ctx calling kmalloc][START: &(*ohci).IR_channel_lock, unknown->locked, /home/junfeng/linux-2.5.63/drivers/ieee1394/ohci1394.c, ohci_devctl, 982] return -EFAULT; } mask = (u64)0x1< spin_lock_irqsave(&ohci->IR_channel_lock, flags); if (ohci->ISO_channel_usage & mask) { PRINT(KERN_ERR, ohci->id, "%s: IS0 listen channel %d is already used", __FUNCTION__, arg); spin_unlock_irqrestore(&ohci->IR_channel_lock, flags); return -EFAULT; } /* activate the legacy IR context */ if(ohci->ir_legacy_context.ohci == NULL) { Error ---> if(alloc_dma_rcv_ctx(ohci, &ohci->ir_legacy_context, DMA_CTX_ISO, 0, IR_NUM_DESC, IR_BUF_SIZE, IR_SPLIT_BUF_SIZE, OHCI1394_IsoRcvContextBase) < 0) { --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1661:m3_ioctl: ERROR:BLOCK:1649:1661:calling blocking fn stop_dac with lock &(*card).lock held [stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1649] spin_unlock_irqrestore(&card->lock, flags); return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, (int *)arg); case SNDCTL_DSP_STEREO: get_user_ret(val, (int *)arg, -EFAULT); Start ---> spin_lock_irqsave(&card->lock, flags); fmtd = 0; fmtm = ~0; if (file->f_mode & FMODE_READ) { stop_adc(s); s->dma_adc.ready = 0; if (val) fmtd |= ESS_FMT_STEREO << ESS_ADC_SHIFT; else fmtm &= ~(ESS_FMT_STEREO << ESS_ADC_SHIFT); } if (file->f_mode & FMODE_WRITE) { Error ---> stop_dac(s); s->dma_dac.ready = 0; if (val) fmtd |= ESS_FMT_STEREO << ESS_DAC_SHIFT; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1718:m3_ioctl: ERROR:BLOCK:1705:1718:calling blocking fn stop_dac with lock &(*card).lock held [stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1705] case SNDCTL_DSP_GETFMTS: /* Returns a mask */ return put_user(AFMT_U8|AFMT_S16_LE, (int *)arg); case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/ get_user_ret(val, (int *)arg, -EFAULT); Start ---> spin_lock_irqsave(&card->lock, flags); if (val != AFMT_QUERY) { fmtd = 0; fmtm = ~0; if (file->f_mode & FMODE_READ) { stop_adc(s); s->dma_adc.ready = 0; if (val == AFMT_S16_LE) fmtd |= ESS_FMT_16BIT << ESS_ADC_SHIFT; else fmtm &= ~(ESS_FMT_16BIT << ESS_ADC_SHIFT); } if (file->f_mode & FMODE_WRITE) { Error ---> stop_dac(s); s->dma_dac.ready = 0; if (val == AFMT_S16_LE) fmtd |= ESS_FMT_16BIT << ESS_DAC_SHIFT; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1687:m3_ioctl: ERROR:BLOCK:1674:1687:calling blocking fn stop_dac with lock &(*card).lock held [stop_dac calling dec_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1674] spin_unlock_irqrestore(&card->lock, flags); return 0; case SNDCTL_DSP_CHANNELS: get_user_ret(val, (int *)arg, -EFAULT); Start ---> spin_lock_irqsave(&card->lock, flags); if (val != 0) { fmtd = 0; fmtm = ~0; if (file->f_mode & FMODE_READ) { stop_adc(s); s->dma_adc.ready = 0; if (val >= 2) fmtd |= ESS_FMT_STEREO << ESS_ADC_SHIFT; else fmtm &= ~(ESS_FMT_STEREO << ESS_ADC_SHIFT); } if (file->f_mode & FMODE_WRITE) { Error ---> stop_dac(s); s->dma_dac.ready = 0; if (val >= 2) fmtd |= ESS_FMT_STEREO << ESS_DAC_SHIFT; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1363:m3_read: ERROR:BLOCK:1349:1363:calling blocking fn start_adc with lock &(*(*s).card).lock held [start_adc calling inc_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*(*s).card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_read, 1349] return ret; if (!access_ok(VERIFY_WRITE, buffer, count)) return -EFAULT; ret = 0; Start ---> spin_lock_irqsave(&s->card->lock, flags); while (count > 0) { int timed_out; swptr = s->dma_adc.swptr; cnt = s->dma_adc.dmasize-swptr; if (s->dma_adc.count < cnt) cnt = s->dma_adc.count; if (cnt > count) cnt = count; if (cnt <= 0) { Error ---> start_adc(s); if (file->f_flags & O_NONBLOCK) { ret = ret ? ret : -EAGAIN; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro.c:3704:maestro_suspend: ERROR:BLOCK:3689:3704:calling blocking fn stop_dac with lock &(*card).lock held [stop_dac calling apu_set_register calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro.c, maestro_suspend, 3689] maestro_suspend(struct ess_card *card) { unsigned long flags; int i,j; Start ---> spin_lock_irqsave(&card->lock,flags); /* over-kill */ ... DELETED 9 lines ... if(s->dev_audio == -1) continue; M_printk("maestro: stopping apus for device %d\n",i); Error ---> stop_dac(s); stop_adc(s); for(j=0;j<6;j++) card->apu_map[s->apu[j]][5]=apu_get_register(s,j,5); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/drivers/isdn/i4l/isdn_common.c:933:register_isdn: ERROR:BLOCK:918:933:calling blocking fn isdn_add_channels with lock &drivers_lock held [isdn_add_channels calling kmalloc][START: &drivers_lock, unknown->locked, /home/junfeng/linux-2.5.63/drivers/isdn/i4l/isdn_common.c, register_isdn, 918] drv->fi.state = ST_DRV_NULL; drv->fi.debug = 1; drv->fi.userdata = drv; drv->fi.printdebug = drv_debug; Start ---> spin_lock_irqsave(&drivers_lock, flags); ... DELETED 9 lines ... if (__isdn_drv_lookup(iif->id) >= 0) goto fail_unlock; strcpy(drv->id, iif->id); Error ---> if (isdn_add_channels(drv, iif->channels)) goto fail_unlock; drv->di = drvidx; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:2048:m3_open: ERROR:BLOCK:2032:2048:calling blocking fn set_dac_rate with lock &(*c).lock held [set_dac_rate calling m3_assp_write calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*c).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_open, 2032] if (signal_pending(current)) return -ERESTARTSYS; down(&s->open_sem); } Start ---> spin_lock_irqsave(&c->lock, flags); ... DELETED 10 lines ... fmtm &= ~((ESS_FMT_STEREO | ESS_FMT_16BIT) << ESS_DAC_SHIFT); if ((minor & 0xf) == SND_DEV_DSP16) fmts |= ESS_FMT_16BIT << ESS_DAC_SHIFT; s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = s->dma_dac.subdivision = 0; Error ---> set_dac_rate(s, 8000); } set_fmt(s, fmtm, fmts); s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:2813:m3_suspend: ERROR:BLOCK:2796:2813:calling blocking fn m3_assp_halt with lock &(*card).lock held [m3_assp_halt calling m3_inb calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_suspend, 2796] unsigned long flags; int i; struct m3_card *card = pci_get_drvdata(pci_dev); /* must be a better way.. */ Start ---> spin_lock_irqsave(&card->lock, flags); ... DELETED 11 lines ... stop_adc(s); } mdelay(10); /* give the assp a chance to idle.. */ Error ---> m3_assp_halt(card); if(card->suspend_mem) { int index = 0; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:2050:m3_open: ERROR:BLOCK:2032:2050:calling blocking fn set_fmt with lock &(*c).lock held [set_fmt calling m3_assp_write calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*c).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_open, 2032] if (signal_pending(current)) return -ERESTARTSYS; down(&s->open_sem); } Start ---> spin_lock_irqsave(&c->lock, flags); ... DELETED 12 lines ... fmts |= ESS_FMT_16BIT << ESS_DAC_SHIFT; s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = s->dma_dac.subdivision = 0; set_dac_rate(s, 8000); } Error ---> set_fmt(s, fmtm, fmts); s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE); up(&s->open_sem); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1668:m3_ioctl: ERROR:BLOCK:1649:1668:calling blocking fn set_fmt with lock &(*card).lock held [set_fmt calling m3_assp_write calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1649] spin_unlock_irqrestore(&card->lock, flags); return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, (int *)arg); case SNDCTL_DSP_STEREO: get_user_ret(val, (int *)arg, -EFAULT); Start ---> spin_lock_irqsave(&card->lock, flags); ... DELETED 13 lines ... if (val) fmtd |= ESS_FMT_STEREO << ESS_DAC_SHIFT; else fmtm &= ~(ESS_FMT_STEREO << ESS_DAC_SHIFT); } Error ---> set_fmt(s, fmtm, fmtd); spin_unlock_irqrestore(&card->lock, flags); return 0; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1694:m3_ioctl: ERROR:BLOCK:1674:1694:calling blocking fn set_fmt with lock &(*card).lock held [set_fmt calling m3_assp_write calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1674] spin_unlock_irqrestore(&card->lock, flags); return 0; case SNDCTL_DSP_CHANNELS: get_user_ret(val, (int *)arg, -EFAULT); Start ---> spin_lock_irqsave(&card->lock, flags); ... DELETED 14 lines ... if (val >= 2) fmtd |= ESS_FMT_STEREO << ESS_DAC_SHIFT; else fmtm &= ~(ESS_FMT_STEREO << ESS_DAC_SHIFT); } Error ---> set_fmt(s, fmtm, fmtd); } spin_unlock_irqrestore(&card->lock, flags); return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (ESS_FMT_STEREO << ESS_ADC_SHIFT) --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/drivers/net/wan/comx-hw-munich.c:1458:MUNICH_open: ERROR:BLOCK:1438:1458:calling blocking fn kmalloc with lock &mister_lock held [kmalloc][START: &mister_lock, unknown->locked, /home/junfeng/linux-2.5.63/drivers/net/wan/comx-hw-munich.c, MUNICH_open, 1438] printk("MUNICH_open: no %s board with boardnum = %d\n", ch->hardware->name, hw->boardnum); return -ENODEV; } Start ---> spin_lock_irqsave(&mister_lock, flags); ... DELETED 14 lines ... board->histogram[i] = 0; board->lineup = 0; /* Allocate CCB: */ Error ---> board->ccb = kmalloc(sizeof(munich_ccb_t), GFP_KERNEL); if (board->ccb == NULL) { spin_unlock_irqrestore(&mister_lock, flags); --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1725:m3_ioctl: ERROR:BLOCK:1705:1725:calling blocking fn set_fmt with lock &(*card).lock held [set_fmt calling m3_assp_write calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_ioctl, 1705] case SNDCTL_DSP_GETFMTS: /* Returns a mask */ return put_user(AFMT_U8|AFMT_S16_LE, (int *)arg); case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/ get_user_ret(val, (int *)arg, -EFAULT); Start ---> spin_lock_irqsave(&card->lock, flags); ... DELETED 14 lines ... if (val == AFMT_S16_LE) fmtd |= ESS_FMT_16BIT << ESS_DAC_SHIFT; else fmtm &= ~(ESS_FMT_16BIT << ESS_DAC_SHIFT); } Error ---> set_fmt(s, fmtm, fmtd); } spin_unlock_irqrestore(&card->lock, flags); return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1451:m3_write: ERROR:BLOCK:1430:1451:calling blocking fn start_dac with lock &(*(*s).card).lock held [start_dac calling inc_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][START: &(*(*s).card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_write, 1430] return ret; if (!access_ok(VERIFY_READ, buffer, count)) return -EFAULT; ret = 0; Start ---> spin_lock_irqsave(&s->card->lock, flags); ... DELETED 15 lines ... if (cnt > count) cnt = count; if (cnt <= 0) { Error ---> start_dac(s); if (file->f_flags & O_NONBLOCK) { if(!ret) ret = -EAGAIN; goto out; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro.c:3713:maestro_suspend: ERROR:BLOCK:3689:3713:calling blocking fn stop_bob with lock &(*card).lock held [stop_bob calling maestro_read calling check_suspend calling schedule][START: &(*card).lock, unknown->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro.c, maestro_suspend, 3689] maestro_suspend(struct ess_card *card) { unsigned long flags; int i,j; Start ---> spin_lock_irqsave(&card->lock,flags); /* over-kill */ ... DELETED 18 lines ... } /* get rid of interrupts? */ if( card->dsps_open > 0) Error ---> stop_bob(&card->channels[0]); card->in_suspend++; --------------------------------------------------------- [BUG] interesting things to check: calling kmalloc with GFP_KERNEL and then with GFP_ATOMIC. /home/junfeng/linux-2.5.63/net/rose/rose_route.c:112:rose_add_node: ERROR:BLOCK:64:112:calling blocking fn kmalloc with lock &rose_neigh_list_lock held [kmalloc][START: &rose_neigh_list_lock, unknown->locked, /home/junfeng/linux-2.5.63/net/rose/rose_route.c, rose_add_node, 64] struct rose_node *rose_node, *rose_tmpn, *rose_tmpp; struct rose_neigh *rose_neigh; int i, res = 0; spin_lock_bh(&rose_node_list_lock); Start ---> spin_lock_bh(&rose_neigh_list_lock); ... DELETED 42 lines ... init_timer(&rose_neigh->ftimer); init_timer(&rose_neigh->t0timer); if (rose_route->ndigis != 0) { Error ---> if ((rose_neigh->digipeat = kmalloc(sizeof(ax25_digi), GFP_KERNEL)) == NULL) { kfree(rose_neigh); res = -ENOMEM; goto out; --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1403:m3_read: ERROR:BLOCK:1349:1403:calling blocking fn start_adc with lock &(*(*s).card).lock held [start_adc calling inc_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][TRANS: &(*(*s).card).lock, unlocked->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_read, 1395] return ret; if (!access_ok(VERIFY_WRITE, buffer, count)) return -EFAULT; ret = 0; Start ---> spin_lock_irqsave(&s->card->lock, flags); ... DELETED 48 lines ... s->dma_adc.swptr = swptr; s->dma_adc.count -= cnt; count -= cnt; buffer += cnt; ret += cnt; Error ---> start_adc(s); } out: --------------------------------------------------------- [BUG] /home/junfeng/linux-2.5.63/sound/oss/maestro3.c:1491:m3_write: ERROR:BLOCK:1430:1491:calling blocking fn start_dac with lock &(*(*s).card).lock held [start_dac calling inc_timer_users calling __m3_assp_write calling m3_outw calling check_suspend calling schedule][TRANS: &(*(*s).card).lock, unlocked->locked, /home/junfeng/linux-2.5.63/sound/oss/maestro3.c, m3_write, 1478] return ret; if (!access_ok(VERIFY_READ, buffer, count)) return -EFAULT; ret = 0; Start ---> spin_lock_irqsave(&s->card->lock, flags); ... DELETED 55 lines ... s->dma_dac.count += cnt; s->dma_dac.endcleared = 0; count -= cnt; buffer += cnt; ret += cnt; Error ---> start_dac(s); } out: spin_unlock_irqrestore(&s->card->lock, flags); --------------------------------------------------------- [BUG] such a huge ioctl function ... /home/junfeng/linux-2.5.63/drivers/net/wan/lmc/lmc_main.c:500:lmc_ioctl: ERROR:BLOCK:160:500:calling blocking fn kmalloc with lock &(*sc).lmc_lock held [kmalloc][START: &(*sc).lmc_lock, unknown->locked, /home/junfeng/linux-2.5.63/drivers/net/wan/lmc/lmc_main.c, lmc_ioctl, 160] /* * Most functions mess with the structure * Disable interrupts while we do the polling */ Start ---> spin_lock_irqsave(&sc->lmc_lock, flags); ... DELETED 334 lines ... if(xc.data == 0x0){ ret = -EINVAL; break; } Error ---> data = kmalloc(xc.len, GFP_KERNEL); if(data == 0x0){ printk(KERN_WARNING "%s: Failed to allocate memory for copy\n", dev->name); ret = -ENOMEM; - 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/